diff --git a/apps/dav/lib/CalDAV/CalDavBackend.php b/apps/dav/lib/CalDAV/CalDavBackend.php
index 249dbca9f71f7..5a55a9bbbeff8 100644
--- a/apps/dav/lib/CalDAV/CalDavBackend.php
+++ b/apps/dav/lib/CalDAV/CalDavBackend.php
@@ -208,36 +208,22 @@ class CalDavBackend extends AbstractBackend implements SyncSupport, Subscription
 	 */
 	protected array $userDisplayNames;
 
-	private IDBConnection $db;
 	private Backend $calendarSharingBackend;
-	private Principal $principalBackend;
-	private IUserManager $userManager;
-	private ISecureRandom $random;
-	private LoggerInterface $logger;
-	private IEventDispatcher $dispatcher;
-	private IConfig $config;
-	private bool $legacyEndpoint;
 	private string $dbObjectPropertiesTable = 'calendarobjects_props';
 	private array $cachedObjects = [];
 
-	public function __construct(IDBConnection $db,
-								Principal $principalBackend,
-								IUserManager $userManager,
-								IGroupManager $groupManager,
-								ISecureRandom $random,
-								LoggerInterface $logger,
-								IEventDispatcher $dispatcher,
-								IConfig $config,
-								bool $legacyEndpoint = false) {
-		$this->db = $db;
-		$this->principalBackend = $principalBackend;
-		$this->userManager = $userManager;
+	public function __construct(
+		private IDBConnection $db,
+		private Principal $principalBackend,
+		private IUserManager $userManager,
+		IGroupManager $groupManager,
+		private ISecureRandom $random,
+		private LoggerInterface $logger,
+		private IEventDispatcher $dispatcher,
+		private IConfig $config,
+		private bool $legacyEndpoint = false,
+	) {
 		$this->calendarSharingBackend = new Backend($this->db, $this->userManager, $groupManager, $principalBackend, 'calendar');
-		$this->random = $random;
-		$this->logger = $logger;
-		$this->dispatcher = $dispatcher;
-		$this->config = $config;
-		$this->legacyEndpoint = $legacyEndpoint;
 	}
 
 	/**
@@ -1855,8 +1841,14 @@ public function calendarSearch($principalUri, array $filters, $limit = null, $of
 	 *
 	 * @return array
 	 */
-	public function search(array $calendarInfo, $pattern, array $searchProperties,
-						   array $options, $limit, $offset) {
+	public function search(
+		array $calendarInfo,
+		$pattern,
+		array $searchProperties,
+		array $options,
+		$limit,
+		$offset
+	) {
 		$outerQuery = $this->db->getQueryBuilder();
 		$innerQuery = $this->db->getQueryBuilder();
 
@@ -2074,11 +2066,12 @@ private function transformSearchProperty(Property $prop) {
 	 * @return array
 	 */
 	public function searchPrincipalUri(string $principalUri,
-									   string $pattern,
-									   array $componentTypes,
-									   array $searchProperties,
-									   array $searchParameters,
-									   array $options = []): array {
+		string $pattern,
+		array $componentTypes,
+		array $searchProperties,
+		array $searchParameters,
+		array $options = []
+	): array {
 		return $this->atomic(function () use ($principalUri, $pattern, $componentTypes, $searchProperties, $searchParameters, $options) {
 			$escapePattern = !\array_key_exists('escape_like_param', $options) || $options['escape_like_param'] !== false;
 
@@ -2160,6 +2153,20 @@ public function searchPrincipalUri(string $principalUri,
 			if (isset($options['offset'])) {
 				$calendarObjectIdQuery->setFirstResult($options['offset']);
 			}
+			if (isset($options['timerange'])) {
+				if (isset($options['timerange']['start']) && $options['timerange']['start'] instanceof DateTimeInterface) {
+					$calendarObjectIdQuery->andWhere($calendarObjectIdQuery->expr()->gt(
+						'lastoccurence',
+						$calendarObjectIdQuery->createNamedParameter($options['timerange']['start']->getTimeStamp()),
+					));
+				}
+				if (isset($options['timerange']['end']) && $options['timerange']['end'] instanceof DateTimeInterface) {
+					$calendarObjectIdQuery->andWhere($calendarObjectIdQuery->expr()->lt(
+						'firstoccurence',
+						$calendarObjectIdQuery->createNamedParameter($options['timerange']['end']->getTimeStamp()),
+					));
+				}
+			}
 
 			$result = $calendarObjectIdQuery->executeQuery();
 			$matches = [];
@@ -3187,7 +3194,7 @@ public function pruneOutdatedSyncTokens(int $keep = 10_000): int {
 		$maxId = (int) $result->fetchOne();
 		$result->closeCursor();
 		if (!$maxId || $maxId < $keep) {
-		    return 0;
+			return 0;
 		}
 
 		$query = $this->db->getQueryBuilder();
diff --git a/apps/dav/lib/CardDAV/CardDavBackend.php b/apps/dav/lib/CardDAV/CardDavBackend.php
index e5ddeb9b4e198..613ec16921f16 100644
--- a/apps/dav/lib/CardDAV/CardDavBackend.php
+++ b/apps/dav/lib/CardDAV/CardDavBackend.php
@@ -53,6 +53,7 @@
 use OCP\IDBConnection;
 use OCP\IGroupManager;
 use OCP\IUserManager;
+use OC\Search\Filter\DateTimeFilter;
 use PDO;
 use Sabre\CardDAV\Backend\BackendInterface;
 use Sabre\CardDAV\Backend\SyncSupport;
@@ -1109,7 +1110,15 @@ public function searchPrincipalUri(string $principalUri,
 	 * @param string $pattern
 	 * @param array $searchProperties
 	 * @param array $options
-	 * @psalm-param array{types?: bool, escape_like_param?: bool, limit?: int, offset?: int, wildcard?: bool} $options
+	 * @psalm-param array{
+	 *   types?: bool,
+	 *   escape_like_param?: bool,
+	 *   limit?: int,
+	 *   offset?: int,
+	 *   wildcard?: bool,
+	 *   since?: DateTimeFilter|null,
+	 *   until?: DateTimeFilter|null,
+	 * } $options
 	 * @return array
 	 */
 	private function searchByAddressBookIds(array $addressBookIds,
@@ -1130,32 +1139,31 @@ private function searchByAddressBookIds(array $addressBookIds,
 			return [];
 		}
 
-		$propertyOr = $query2->expr()->orX();
-		foreach ($searchProperties as $property) {
-			if ($escapePattern) {
+		if ($escapePattern) {
+			$searchProperties = array_filter($searchProperties, function ($property) use ($pattern) {
 				if ($property === 'EMAIL' && str_contains($pattern, ' ')) {
 					// There can be no spaces in emails
-					continue;
+					return false;
 				}
 
 				if ($property === 'CLOUD' && preg_match('/[^a-zA-Z0-9 :_.@\/\-\']/', $pattern) === 1) {
 					// There can be no chars in cloud ids which are not valid for user ids plus :/
 					// worst case: CA61590A-BBBC-423E-84AF-E6DF01455A53@https://my.nxt/srv/
-					continue;
+					return false;
 				}
-			}
 
-			$propertyOr->add($query2->expr()->eq('cp.name', $query2->createNamedParameter($property)));
+				return true;
+			});
 		}
 
-		if ($propertyOr->count() === 0) {
+		if (empty($searchProperties)) {
 			return [];
 		}
 
 		$query2->selectDistinct('cp.cardid')
 			->from($this->dbCardsPropertiesTable, 'cp')
 			->andWhere($addressBookOr)
-			->andWhere($propertyOr);
+			->andWhere($query2->expr()->in('cp.name', $query2->createNamedParameter($searchProperties, IQueryBuilder::PARAM_STR_ARRAY)));
 
 		// No need for like when the pattern is empty
 		if ('' !== $pattern) {
@@ -1167,7 +1175,6 @@ private function searchByAddressBookIds(array $addressBookIds,
 				$query2->andWhere($query2->expr()->ilike('cp.value', $query2->createNamedParameter('%' . $this->db->escapeLikeParameter($pattern) . '%')));
 			}
 		}
-
 		if (isset($options['limit'])) {
 			$query2->setMaxResults($options['limit']);
 		}
@@ -1175,6 +1182,29 @@ private function searchByAddressBookIds(array $addressBookIds,
 			$query2->setFirstResult($options['offset']);
 		}
 
+		if (isset($options['since']) || isset($options['until'])) {
+			$query2->join('cp', $this->dbCardsPropertiesTable, 'cp_bday', 'cp.cardid = cp_bday.cardid');
+			$query2->andWhere($query2->expr()->eq('cp_bday.name', $query2->createNamedParameter('BDAY')));
+			/**
+			 * FIXME Find a way to match only 4 last digits
+			 * BDAY can be --1018 without year or 20001019 with it
+			 * $bDayOr = $query2->expr()->orX();
+			 * if ($options['since'] instanceof DateTimeFilter) {
+			 * $bDayOr->add(
+			 * $query2->expr()->gte('SUBSTR(cp_bday.value, -4)',
+			 * $query2->createNamedParameter($options['since']->get()->format('md')))
+			 * );
+			 * }
+			 * if ($options['until'] instanceof DateTimeFilter) {
+			 * $bDayOr->add(
+			 * $query2->expr()->lte('SUBSTR(cp_bday.value, -4)',
+			 * $query2->createNamedParameter($options['until']->get()->format('md')))
+			 * );
+			 * }
+			 * $query2->andWhere($bDayOr);
+			 */
+		}
+
 		$result = $query2->execute();
 		$matches = $result->fetchAll();
 		$result->closeCursor();
@@ -1410,7 +1440,7 @@ public function pruneOutdatedSyncTokens(int $keep = 10_000): int {
 		$maxId = (int) $result->fetchOne();
 		$result->closeCursor();
 		if (!$maxId || $maxId < $keep) {
-		    return 0;
+			return 0;
 		}
 
 		$query = $this->db->getQueryBuilder();
diff --git a/apps/dav/lib/Search/ContactsSearchProvider.php b/apps/dav/lib/Search/ContactsSearchProvider.php
index a7c2969016b47..57e69c676e091 100644
--- a/apps/dav/lib/Search/ContactsSearchProvider.php
+++ b/apps/dav/lib/Search/ContactsSearchProvider.php
@@ -32,31 +32,23 @@
 use OCP\IL10N;
 use OCP\IURLGenerator;
 use OCP\IUser;
-use OCP\Search\IProvider;
+use OCP\Search\FilterDefinition;
+use OCP\Search\IFilteringProvider;
 use OCP\Search\ISearchQuery;
 use OCP\Search\SearchResult;
 use OCP\Search\SearchResultEntry;
 use Sabre\VObject\Component\VCard;
 use Sabre\VObject\Reader;
 
-class ContactsSearchProvider implements IProvider {
-
-	/** @var IAppManager */
-	private $appManager;
-
-	/** @var IL10N */
-	private $l10n;
-
-	/** @var IURLGenerator */
-	private $urlGenerator;
-
-	/** @var CardDavBackend */
-	private $backend;
+class ContactsSearchProvider implements IFilteringProvider {
+	private static array $searchPropertiesRestricted = [
+		'N',
+		'FN',
+		'NICKNAME',
+		'EMAIL',
+	];
 
-	/**
-	 * @var string[]
-	 */
-	private static $searchProperties = [
+	private static array $searchProperties = [
 		'N',
 		'FN',
 		'NICKNAME',
@@ -68,22 +60,12 @@ class ContactsSearchProvider implements IProvider {
 		'NOTE',
 	];
 
-	/**
-	 * ContactsSearchProvider constructor.
-	 *
-	 * @param IAppManager $appManager
-	 * @param IL10N $l10n
-	 * @param IURLGenerator $urlGenerator
-	 * @param CardDavBackend $backend
-	 */
-	public function __construct(IAppManager $appManager,
-								IL10N $l10n,
-								IURLGenerator $urlGenerator,
-								CardDavBackend $backend) {
-		$this->appManager = $appManager;
-		$this->l10n = $l10n;
-		$this->urlGenerator = $urlGenerator;
-		$this->backend = $backend;
+	public function __construct(
+		private IAppManager $appManager,
+		private IL10N $l10n,
+		private IURLGenerator $urlGenerator,
+		private CardDavBackend $backend,
+	) {
 	}
 
 	/**
@@ -100,9 +82,6 @@ public function getName(): string {
 		return $this->l10n->t('Contacts');
 	}
 
-	/**
-	 * @inheritDoc
-	 */
 	public function getOrder(string $route, array $routeParameters): int {
 		if ($route === 'contacts.Page.index') {
 			return -1;
@@ -110,9 +89,6 @@ public function getOrder(string $route, array $routeParameters): int {
 		return 25;
 	}
 
-	/**
-	 * @inheritDoc
-	 */
 	public function search(IUser $user, ISearchQuery $query): SearchResult {
 		if (!$this->appManager->isEnabledForUser('contacts', $user)) {
 			return SearchResult::complete($this->getName(), []);
@@ -127,12 +103,16 @@ public function search(IUser $user, ISearchQuery $query): SearchResult {
 
 		$searchResults = $this->backend->searchPrincipalUri(
 			$principalUri,
-			$query->getTerm(),
-			self::$searchProperties,
+			$query->getFilter('term')?->get() ?? '',
+			$query->getFilter('title-only')?->get() ? self::$searchPropertiesRestricted : self::$searchProperties,
 			[
 				'limit' => $query->getLimit(),
 				'offset' => $query->getCursor(),
-			]
+				'since' => $query->getFilter('since'),
+				'until' => $query->getFilter('until'),
+				'person' => $query->getFilter('person'),
+				'company' => $query->getFilter('company'),
+			],
 		);
 		$formattedResults = \array_map(function (array $contactRow) use ($addressBooksById):SearchResultEntry {
 			$addressBook = $addressBooksById[$contactRow['addressbookid']];
@@ -158,15 +138,11 @@ public function search(IUser $user, ISearchQuery $query): SearchResult {
 		);
 	}
 
-	/**
-	 * @param string $principalUri
-	 * @param string $addressBookUri
-	 * @param string $contactsUri
-	 * @return string
-	 */
-	protected function getDavUrlForContact(string $principalUri,
-										   string $addressBookUri,
-										   string $contactsUri): string {
+	protected function getDavUrlForContact(
+		string $principalUri,
+		string $addressBookUri,
+		string $contactsUri,
+	): string {
 		[, $principalType, $principalId] = explode('/', $principalUri, 3);
 
 		return $this->urlGenerator->getAbsoluteURL(
@@ -178,13 +154,10 @@ protected function getDavUrlForContact(string $principalUri,
 		);
 	}
 
-	/**
-	 * @param string $addressBookUri
-	 * @param string $contactUid
-	 * @return string
-	 */
-	protected function getDeepLinkToContactsApp(string $addressBookUri,
-												string $contactUid): string {
+	protected function getDeepLinkToContactsApp(
+		string $addressBookUri,
+		string $contactUid,
+	): string {
 		return $this->urlGenerator->getAbsoluteURL(
 			$this->urlGenerator->linkToRoute('contacts.contacts.direct', [
 				'contact' => $contactUid . '~' . $addressBookUri
@@ -192,10 +165,6 @@ protected function getDeepLinkToContactsApp(string $addressBookUri,
 		);
 	}
 
-	/**
-	 * @param VCard $vCard
-	 * @return string
-	 */
 	protected function generateSubline(VCard $vCard): string {
 		$emailAddresses = $vCard->select('EMAIL');
 		if (!is_array($emailAddresses) || empty($emailAddresses)) {
@@ -204,4 +173,24 @@ protected function generateSubline(VCard $vCard): string {
 
 		return (string)$emailAddresses[0];
 	}
+
+	public function getSupportedFilters(): array {
+		return [
+			'term',
+			'since',
+			'until',
+			'person',
+			'title-only',
+		];
+	}
+
+	public function getAlternateIds(): array {
+		return [];
+	}
+
+	public function getCustomFilters(): array {
+		return [
+			new FilterDefinition('company'),
+		];
+	}
 }
diff --git a/apps/dav/lib/Search/EventsSearchProvider.php b/apps/dav/lib/Search/EventsSearchProvider.php
index 07fc90397ed2d..22c87b1f854a9 100644
--- a/apps/dav/lib/Search/EventsSearchProvider.php
+++ b/apps/dav/lib/Search/EventsSearchProvider.php
@@ -42,7 +42,6 @@
  * @package OCA\DAV\Search
  */
 class EventsSearchProvider extends ACalendarSearchProvider {
-
 	/**
 	 * @var string[]
 	 */
@@ -95,8 +94,10 @@ public function getOrder(string $route, array $routeParameters): int {
 	/**
 	 * @inheritDoc
 	 */
-	public function search(IUser $user,
-						   ISearchQuery $query): SearchResult {
+	public function search(
+		IUser $user,
+		ISearchQuery $query,
+	): SearchResult {
 		if (!$this->appManager->isEnabledForUser('calendar', $user)) {
 			return SearchResult::complete($this->getName(), []);
 		}
@@ -107,13 +108,17 @@ public function search(IUser $user,
 
 		$searchResults = $this->backend->searchPrincipalUri(
 			$principalUri,
-			$query->getTerm(),
+			$query->getFilter('term')?->get() ?? '',
 			[self::$componentType],
 			self::$searchProperties,
 			self::$searchParameters,
 			[
 				'limit' => $query->getLimit(),
 				'offset' => $query->getCursor(),
+				'timerange' => [
+					'start' => $query->getFilter('since')?->get(),
+					'end' => $query->getFilter('until')?->get(),
+				],
 			]
 		);
 		$formattedResults = \array_map(function (array $eventRow) use ($calendarsById, $subscriptionsById):SearchResultEntry {
@@ -138,15 +143,11 @@ public function search(IUser $user,
 		);
 	}
 
-	/**
-	 * @param string $principalUri
-	 * @param string $calendarUri
-	 * @param string $calendarObjectUri
-	 * @return string
-	 */
-	protected function getDeepLinkToCalendarApp(string $principalUri,
-												string $calendarUri,
-												string $calendarObjectUri): string {
+	protected function getDeepLinkToCalendarApp(
+		string $principalUri,
+		string $calendarUri,
+		string $calendarObjectUri,
+	): string {
 		$davUrl = $this->getDavUrlForCalendarObject($principalUri, $calendarUri, $calendarObjectUri);
 		// This route will automatically figure out what recurrence-id to open
 		return $this->urlGenerator->getAbsoluteURL(
@@ -156,15 +157,11 @@ protected function getDeepLinkToCalendarApp(string $principalUri,
 		);
 	}
 
-	/**
-	 * @param string $principalUri
-	 * @param string $calendarUri
-	 * @param string $calendarObjectUri
-	 * @return string
-	 */
-	protected function getDavUrlForCalendarObject(string $principalUri,
-												  string $calendarUri,
-												  string $calendarObjectUri): string {
+	protected function getDavUrlForCalendarObject(
+		string $principalUri,
+		string $calendarUri,
+		string $calendarObjectUri
+	): string {
 		[,, $principalId] = explode('/', $principalUri, 3);
 
 		return $this->urlGenerator->linkTo('', 'remote.php') . '/dav/calendars/'
@@ -173,10 +170,6 @@ protected function getDavUrlForCalendarObject(string $principalUri,
 			. $calendarObjectUri;
 	}
 
-	/**
-	 * @param Component $eventComponent
-	 * @return string
-	 */
 	protected function generateSubline(Component $eventComponent): string {
 		$dtStart = $eventComponent->DTSTART;
 		$dtEnd = $this->getDTEndForEvent($eventComponent);
@@ -207,10 +200,6 @@ protected function generateSubline(Component $eventComponent): string {
 		return "$formattedStartDate $formattedStartTime - $formattedEndDate $formattedEndTime";
 	}
 
-	/**
-	 * @param Component $eventComponent
-	 * @return Property
-	 */
 	protected function getDTEndForEvent(Component $eventComponent):Property {
 		if (isset($eventComponent->DTEND)) {
 			$end = $eventComponent->DTEND;
@@ -233,13 +222,10 @@ protected function getDTEndForEvent(Component $eventComponent):Property {
 		return $end;
 	}
 
-	/**
-	 * @param \DateTime $dtStart
-	 * @param \DateTime $dtEnd
-	 * @return bool
-	 */
-	protected function isDayEqual(\DateTime $dtStart,
-								  \DateTime $dtEnd) {
+	protected function isDayEqual(
+		\DateTime $dtStart,
+		\DateTime $dtEnd,
+	): bool {
 		return $dtStart->format('Y-m-d') === $dtEnd->format('Y-m-d');
 	}
 }
diff --git a/apps/dav/lib/Search/TasksSearchProvider.php b/apps/dav/lib/Search/TasksSearchProvider.php
index 763720ee4ae0a..91692ea1c2ab7 100644
--- a/apps/dav/lib/Search/TasksSearchProvider.php
+++ b/apps/dav/lib/Search/TasksSearchProvider.php
@@ -41,7 +41,6 @@
  * @package OCA\DAV\Search
  */
 class TasksSearchProvider extends ACalendarSearchProvider {
-
 	/**
 	 * @var string[]
 	 */
@@ -88,8 +87,10 @@ public function getOrder(string $route, array $routeParameters): int {
 	/**
 	 * @inheritDoc
 	 */
-	public function search(IUser $user,
-						   ISearchQuery $query): SearchResult {
+	public function search(
+		IUser $user,
+		ISearchQuery $query,
+	): SearchResult {
 		if (!$this->appManager->isEnabledForUser('tasks', $user)) {
 			return SearchResult::complete($this->getName(), []);
 		}
@@ -100,13 +101,15 @@ public function search(IUser $user,
 
 		$searchResults = $this->backend->searchPrincipalUri(
 			$principalUri,
-			$query->getTerm(),
+			$query->getFilter('term')?->get() ?? '',
 			[self::$componentType],
 			self::$searchProperties,
 			self::$searchParameters,
 			[
 				'limit' => $query->getLimit(),
 				'offset' => $query->getCursor(),
+				'since' => $query->getFilter('since'),
+				'until' => $query->getFilter('until'),
 			]
 		);
 		$formattedResults = \array_map(function (array $taskRow) use ($calendarsById, $subscriptionsById):SearchResultEntry {
@@ -131,13 +134,10 @@ public function search(IUser $user,
 		);
 	}
 
-	/**
-	 * @param string $calendarUri
-	 * @param string $taskUri
-	 * @return string
-	 */
-	protected function getDeepLinkToTasksApp(string $calendarUri,
-											 string $taskUri): string {
+	protected function getDeepLinkToTasksApp(
+		string $calendarUri,
+		string $taskUri,
+	): string {
 		return $this->urlGenerator->getAbsoluteURL(
 			$this->urlGenerator->linkToRoute('tasks.page.index')
 			. '#/calendars/'
@@ -147,10 +147,6 @@ protected function getDeepLinkToTasksApp(string $calendarUri,
 		);
 	}
 
-	/**
-	 * @param Component $taskComponent
-	 * @return string
-	 */
 	protected function generateSubline(Component $taskComponent): string {
 		if ($taskComponent->COMPLETED) {
 			$completedDateTime = new \DateTime($taskComponent->COMPLETED->getDateTime()->format(\DateTimeInterface::ATOM));
diff --git a/apps/dav/tests/unit/Search/ContactsSearchProviderTest.php b/apps/dav/tests/unit/Search/ContactsSearchProviderTest.php
index b91612ae5becc..f87a935f8b8b1 100644
--- a/apps/dav/tests/unit/Search/ContactsSearchProviderTest.php
+++ b/apps/dav/tests/unit/Search/ContactsSearchProviderTest.php
@@ -159,7 +159,7 @@ public function testSearch(): void {
 			]);
 		$this->backend->expects($this->once())
 			->method('searchPrincipalUri')
-			->with('principals/users/john.doe', 'search term',
+			->with('principals/users/john.doe', '',
 				[
 					'N',
 					'FN',
@@ -171,7 +171,7 @@ public function testSearch(): void {
 					'ORG',
 					'NOTE',
 				],
-				['limit' => 5, 'offset' => 20])
+				['limit' => 5, 'offset' => 20, 'since' => null, 'until' => null,  'person' => null, 'company' => null])
 			->willReturn([
 				[
 					'addressbookid' => 99,
diff --git a/apps/dav/tests/unit/Search/EventsSearchProviderTest.php b/apps/dav/tests/unit/Search/EventsSearchProviderTest.php
index 601c0567f745e..ef1288b085020 100644
--- a/apps/dav/tests/unit/Search/EventsSearchProviderTest.php
+++ b/apps/dav/tests/unit/Search/EventsSearchProviderTest.php
@@ -328,10 +328,10 @@ public function testSearch(): void {
 			]);
 		$this->backend->expects($this->once())
 			->method('searchPrincipalUri')
-			->with('principals/users/john.doe', 'search term', ['VEVENT'],
+			->with('principals/users/john.doe', '', ['VEVENT'],
 				['SUMMARY', 'LOCATION', 'DESCRIPTION', 'ATTENDEE', 'ORGANIZER', 'CATEGORIES'],
 				['ATTENDEE' => ['CN'], 'ORGANIZER' => ['CN']],
-				['limit' => 5, 'offset' => 20])
+				['limit' => 5, 'offset' => 20, 'timerange' => ['start' => null, 'end' => null]])
 			->willReturn([
 				[
 					'calendarid' => 99,
diff --git a/apps/dav/tests/unit/Search/TasksSearchProviderTest.php b/apps/dav/tests/unit/Search/TasksSearchProviderTest.php
index 13dc02bb2783f..b9ec598db0f9e 100644
--- a/apps/dav/tests/unit/Search/TasksSearchProviderTest.php
+++ b/apps/dav/tests/unit/Search/TasksSearchProviderTest.php
@@ -213,10 +213,10 @@ public function testSearch(): void {
 			]);
 		$this->backend->expects($this->once())
 			->method('searchPrincipalUri')
-			->with('principals/users/john.doe', 'search term', ['VTODO'],
+			->with('principals/users/john.doe', '', ['VTODO'],
 				['SUMMARY', 'DESCRIPTION', 'CATEGORIES'],
 				[],
-				['limit' => 5, 'offset' => 20])
+				['limit' => 5, 'offset' => 20, 'since' => null, 'until' => null])
 			->willReturn([
 				[
 					'calendarid' => 99,
diff --git a/apps/files/lib/Search/FilesSearchProvider.php b/apps/files/lib/Search/FilesSearchProvider.php
index ba2d4bafa3062..35dd0e214639c 100644
--- a/apps/files/lib/Search/FilesSearchProvider.php
+++ b/apps/files/lib/Search/FilesSearchProvider.php
@@ -29,25 +29,32 @@
  */
 namespace OCA\Files\Search;
 
+use InvalidArgumentException;
+use OCP\Files\Search\ISearchOperator;
+use OCP\Search\FilterDefinition;
+use OCP\Search\IFilter;
+use OCP\Search\IFilteringProvider;
+use OCP\Share\IShare;
+use OC\Files\Search\SearchBinaryOperator;
 use OC\Files\Search\SearchComparison;
 use OC\Files\Search\SearchOrder;
 use OC\Files\Search\SearchQuery;
 use OCP\Files\FileInfo;
 use OCP\Files\IMimeTypeDetector;
 use OCP\Files\IRootFolder;
-use OCP\Files\Search\ISearchComparison;
 use OCP\Files\Node;
+use OCP\Files\Search\ISearchComparison;
 use OCP\Files\Search\ISearchOrder;
 use OCP\IL10N;
 use OCP\IURLGenerator;
 use OCP\IUser;
-use OCP\Search\IProvider;
 use OCP\Search\ISearchQuery;
 use OCP\Search\SearchResult;
 use OCP\Search\SearchResultEntry;
+use OC\Search\Filter\GroupFilter;
+use OC\Search\Filter\UserFilter;
 
-class FilesSearchProvider implements IProvider {
-
+class FilesSearchProvider implements IFilteringProvider {
 	/** @var IL10N */
 	private $l10n;
 
@@ -97,21 +104,38 @@ public function getOrder(string $route, array $routeParameters): int {
 		return 5;
 	}
 
-	/**
-	 * @inheritDoc
-	 */
+	public function getSupportedFilters(): array {
+		return [
+			'term',
+			'since',
+			'until',
+			'person',
+			'min-size',
+			'max-size',
+			'mime',
+			'type',
+			'is-favorite',
+			'title-only',
+		];
+	}
+
+	public function getAlternateIds(): array {
+		return [];
+	}
+
+	public function getCustomFilters(): array {
+		return [
+			new FilterDefinition('min-size', FilterDefinition::TYPE_INT),
+			new FilterDefinition('max-size', FilterDefinition::TYPE_INT),
+			new FilterDefinition('mime', FilterDefinition::TYPE_STRING),
+			new FilterDefinition('type', FilterDefinition::TYPE_STRING),
+			new FilterDefinition('is-favorite', FilterDefinition::TYPE_BOOL),
+		];
+	}
+
 	public function search(IUser $user, ISearchQuery $query): SearchResult {
 		$userFolder = $this->rootFolder->getUserFolder($user->getUID());
-		$fileQuery = new SearchQuery(
-			new SearchComparison(ISearchComparison::COMPARE_LIKE, 'name', '%' . $query->getTerm() . '%'),
-			$query->getLimit(),
-			(int)$query->getCursor(),
-			$query->getSortOrder() === ISearchQuery::SORT_DATE_DESC ? [
-				new SearchOrder(ISearchOrder::DIRECTION_DESCENDING, 'mtime'),
-			] : [],
-			$user
-		);
-
+		$fileQuery = $this->buildSearchQuery($query, $user);
 		return SearchResult::paginated(
 			$this->l10n->t('Files'),
 			array_map(function (Node $result) use ($userFolder) {
@@ -141,6 +165,53 @@ public function search(IUser $user, ISearchQuery $query): SearchResult {
 		);
 	}
 
+	private function buildSearchQuery(ISearchQuery $query, IUser $user): SearchQuery {
+		$comparisons = [];
+		foreach ($query->getFilters() as $name => $filter) {
+			$comparisons[] = match ($name) {
+				'term' => new SearchComparison(ISearchComparison::COMPARE_LIKE, 'name', '%' . $filter->get() . '%'),
+				'since' => new SearchComparison(ISearchComparison::COMPARE_GREATER_THAN_EQUAL, 'mtime', $filter->get()->getTimestamp()),
+				'until' => new SearchComparison(ISearchComparison::COMPARE_LESS_THAN_EQUAL, 'mtime', $filter->get()->getTimestamp()),
+				'min-size' => new SearchComparison(ISearchComparison::COMPARE_GREATER_THAN_EQUAL, 'size', $filter->get()),
+				'max-size' => new SearchComparison(ISearchComparison::COMPARE_LESS_THAN_EQUAL, 'size', $filter->get()),
+				'mime' => new SearchComparison(ISearchComparison::COMPARE_EQUAL, 'mimetype', $filter->get()),
+				'type' => new SearchComparison(ISearchComparison::COMPARE_LIKE, 'mimetype', $filter->get() . '/%'),
+				'person' => $this->buildPersonSearchQuery($filter),
+				default => throw new InvalidArgumentException('Unsupported comparison'),
+			};
+		}
+
+		return new SearchQuery(
+			new SearchBinaryOperator(SearchBinaryOperator::OPERATOR_AND, $comparisons),
+			$query->getLimit(),
+			(int) $query->getCursor(),
+			$query->getSortOrder() === ISearchQuery::SORT_DATE_DESC
+				? [new SearchOrder(ISearchOrder::DIRECTION_DESCENDING, 'mtime')]
+				: [],
+			$user
+		);
+	}
+
+	private function buildPersonSearchQuery(IFilter $person): ISearchOperator {
+		if ($person instanceof UserFilter) {
+			return new SearchBinaryOperator(SearchBinaryOperator::OPERATOR_OR, [
+				new SearchBinaryOperator(SearchBinaryOperator::OPERATOR_AND, [
+					new SearchComparison(ISearchComparison::COMPARE_EQUAL, 'share_with', $person->get()->getUID()),
+					new SearchComparison(ISearchComparison::COMPARE_EQUAL, 'share_type', IShare::TYPE_USER),
+				]),
+				new SearchComparison(ISearchComparison::COMPARE_EQUAL, 'owner', $person->get()->getUID()),
+			]);
+		}
+		if ($person instanceof GroupFilter) {
+			return new SearchBinaryOperator(SearchBinaryOperator::OPERATOR_AND, [
+				new SearchComparison(ISearchComparison::COMPARE_EQUAL, 'share_with', $person->get()->getGID()),
+				new SearchComparison(ISearchComparison::COMPARE_EQUAL, 'share_type', IShare::TYPE_GROUP),
+			]);
+		}
+
+		throw new InvalidArgumentException('Unsupported filter type');
+	}
+
 	/**
 	 * Format subline for files
 	 *
diff --git a/core/Controller/UnifiedSearchController.php b/core/Controller/UnifiedSearchController.php
index 9704850bb1f27..87aa84e1d91b6 100644
--- a/core/Controller/UnifiedSearchController.php
+++ b/core/Controller/UnifiedSearchController.php
@@ -31,14 +31,15 @@
 use OC\Search\SearchComposer;
 use OC\Search\SearchQuery;
 use OCA\Core\ResponseDefinitions;
-use OCP\AppFramework\OCSController;
 use OCP\AppFramework\Http;
 use OCP\AppFramework\Http\DataResponse;
+use OCP\AppFramework\OCSController;
 use OCP\IRequest;
 use OCP\IURLGenerator;
 use OCP\IUserSession;
 use OCP\Route\IRouter;
 use OCP\Search\ISearchQuery;
+use OC\Search\UnsupportedFilter;
 use Symfony\Component\Routing\Exception\ResourceNotFoundException;
 
 /**
@@ -80,7 +81,10 @@ public function getProviders(string $from = ''): DataResponse {
 	 * @NoAdminRequired
 	 * @NoCSRFRequired
 	 *
-	 * Search
+	 * Launch a search for a specific search provider.
+	 *
+	 * Additional filters are available for each provider.
+	 * Send a request to /providers endpoint to list providers with their available filters.
 	 *
 	 * @param string $providerId ID of the provider
 	 * @param string $term Term to search
@@ -89,28 +93,33 @@ public function getProviders(string $from = ''): DataResponse {
 	 * @param int|string|null $cursor Offset for searching
 	 * @param string $from The current user URL
 	 *
-	 * @return DataResponse<Http::STATUS_OK, CoreUnifiedSearchResult, array{}>|DataResponse<Http::STATUS_BAD_REQUEST, null, array{}>
+	 * @return DataResponse<Http::STATUS_OK, CoreUnifiedSearchResult, array{}>|DataResponse<Http::STATUS_BAD_REQUEST, string, array{}>
 	 *
 	 * 200: Search entries returned
 	 * 400: Searching is not possible
 	 */
-	public function search(string $providerId,
-						   string $term = '',
-						   ?int $sortOrder = null,
-						   ?int $limit = null,
-						   $cursor = null,
-						   string $from = ''): DataResponse {
-		if (trim($term) === "") {
-			return new DataResponse(null, Http::STATUS_BAD_REQUEST);
-		}
+	public function search(
+		string $providerId,
+		// Unused parameter for OpenAPI spec generator
+		string $term = '',
+		?int $sortOrder = null,
+		?int $limit = null,
+		$cursor = null,
+		string $from = '',
+	): DataResponse {
 		[$route, $routeParameters] = $this->getRouteInformation($from);
 
+		try {
+			$filters = $this->composer->buildFilterList($providerId, $this->request->getParams());
+		} catch (UnsupportedFilter $e) {
+			return new DataResponse($e->getMessage(), Http::STATUS_BAD_REQUEST);
+		}
 		return new DataResponse(
 			$this->composer->search(
 				$this->userSession->getUser(),
 				$providerId,
 				new SearchQuery(
-					$term,
+					$filters,
 					$sortOrder ?? ISearchQuery::SORT_DATE_DESC,
 					$limit ?? SearchQuery::LIMIT_DEFAULT,
 					$cursor,
diff --git a/core/ResponseDefinitions.php b/core/ResponseDefinitions.php
index ca3f117051c4c..86eef1d252472 100644
--- a/core/ResponseDefinitions.php
+++ b/core/ResponseDefinitions.php
@@ -98,8 +98,12 @@
  *
  * @psalm-type CoreUnifiedSearchProvider = array{
  *     id: string,
+ *     appId: string,
  *     name: string,
+ *     icon: string,
  *     order: int,
+ *     triggers: string[],
+ *     filters: array<string, string>,
  * }
  *
  * @psalm-type CoreUnifiedSearchResultEntry = array{
diff --git a/core/openapi.json b/core/openapi.json
index 7cb48b58f0a4c..a63d9380db7bc 100644
--- a/core/openapi.json
+++ b/core/openapi.json
@@ -501,19 +501,41 @@
                 "type": "object",
                 "required": [
                     "id",
+                    "appId",
                     "name",
-                    "order"
+                    "icon",
+                    "order",
+                    "triggers",
+                    "filters"
                 ],
                 "properties": {
                     "id": {
                         "type": "string"
                     },
+                    "appId": {
+                        "type": "string"
+                    },
                     "name": {
                         "type": "string"
                     },
+                    "icon": {
+                        "type": "string"
+                    },
                     "order": {
                         "type": "integer",
                         "format": "int64"
+                    },
+                    "triggers": {
+                        "type": "array",
+                        "items": {
+                            "type": "string"
+                        }
+                    },
+                    "filters": {
+                        "type": "object",
+                        "additionalProperties": {
+                            "type": "string"
+                        }
                     }
                 }
             },
@@ -4000,7 +4022,8 @@
         "/ocs/v2.php/search/providers/{providerId}/search": {
             "get": {
                 "operationId": "unified_search-search",
-                "summary": "Search",
+                "summary": "Launch a search for a specific search provider.",
+                "description": "Additional filters are available for each provider. Send a request to /providers endpoint to list providers with their available filters.",
                 "tags": [
                     "unified_search"
                 ],
@@ -4132,7 +4155,7 @@
                                                     "$ref": "#/components/schemas/OCSMeta"
                                                 },
                                                 "data": {
-                                                    "nullable": true
+                                                    "type": "string"
                                                 }
                                             }
                                         }
diff --git a/lib/composer/composer/InstalledVersions.php b/lib/composer/composer/InstalledVersions.php
index c6b54af7ba2e1..51e734a774b3e 100644
--- a/lib/composer/composer/InstalledVersions.php
+++ b/lib/composer/composer/InstalledVersions.php
@@ -98,7 +98,7 @@ public static function isInstalled($packageName, $includeDevRequirements = true)
     {
         foreach (self::getInstalled() as $installed) {
             if (isset($installed['versions'][$packageName])) {
-                return $includeDevRequirements || empty($installed['versions'][$packageName]['dev_requirement']);
+                return $includeDevRequirements || !isset($installed['versions'][$packageName]['dev_requirement']) || $installed['versions'][$packageName]['dev_requirement'] === false;
             }
         }
 
@@ -119,7 +119,7 @@ public static function isInstalled($packageName, $includeDevRequirements = true)
      */
     public static function satisfies(VersionParser $parser, $packageName, $constraint)
     {
-        $constraint = $parser->parseConstraints($constraint);
+        $constraint = $parser->parseConstraints((string) $constraint);
         $provided = $parser->parseConstraints(self::getVersionRanges($packageName));
 
         return $provided->matches($constraint);
@@ -328,7 +328,9 @@ private static function getInstalled()
                 if (isset(self::$installedByVendor[$vendorDir])) {
                     $installed[] = self::$installedByVendor[$vendorDir];
                 } elseif (is_file($vendorDir.'/composer/installed.php')) {
-                    $installed[] = self::$installedByVendor[$vendorDir] = require $vendorDir.'/composer/installed.php';
+                    /** @var array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>} $required */
+                    $required = require $vendorDir.'/composer/installed.php';
+                    $installed[] = self::$installedByVendor[$vendorDir] = $required;
                     if (null === self::$installed && strtr($vendorDir.'/composer', '\\', '/') === strtr(__DIR__, '\\', '/')) {
                         self::$installed = $installed[count($installed) - 1];
                     }
@@ -340,12 +342,17 @@ private static function getInstalled()
             // only require the installed.php file if this file is loaded from its dumped location,
             // and not from its source location in the composer/composer package, see https://github.com/composer/composer/issues/9937
             if (substr(__DIR__, -8, 1) !== 'C') {
-                self::$installed = require __DIR__ . '/installed.php';
+                /** @var array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>} $required */
+                $required = require __DIR__ . '/installed.php';
+                self::$installed = $required;
             } else {
                 self::$installed = array();
             }
         }
-        $installed[] = self::$installed;
+
+        if (self::$installed !== array()) {
+            $installed[] = self::$installed;
+        }
 
         return $installed;
     }
diff --git a/lib/composer/composer/autoload_classmap.php b/lib/composer/composer/autoload_classmap.php
index 8eaf0970494c1..cb94551e35e8b 100644
--- a/lib/composer/composer/autoload_classmap.php
+++ b/lib/composer/composer/autoload_classmap.php
@@ -589,6 +589,10 @@
     'OCP\\Route\\IRouter' => $baseDir . '/lib/public/Route/IRouter.php',
     'OCP\\SabrePluginEvent' => $baseDir . '/lib/public/SabrePluginEvent.php',
     'OCP\\SabrePluginException' => $baseDir . '/lib/public/SabrePluginException.php',
+    'OCP\\Search\\FilterDefinition' => $baseDir . '/lib/public/Search/FilterDefinition.php',
+    'OCP\\Search\\IFilter' => $baseDir . '/lib/public/Search/IFilter.php',
+    'OCP\\Search\\IFilterCollection' => $baseDir . '/lib/public/Search/IFilterCollection.php',
+    'OCP\\Search\\IFilteringProvider' => $baseDir . '/lib/public/Search/IFilteringProvider.php',
     'OCP\\Search\\IProvider' => $baseDir . '/lib/public/Search/IProvider.php',
     'OCP\\Search\\ISearchQuery' => $baseDir . '/lib/public/Search/ISearchQuery.php',
     'OCP\\Search\\PagedProvider' => $baseDir . '/lib/public/Search/PagedProvider.php',
@@ -1641,6 +1645,16 @@
     'OC\\Route\\Route' => $baseDir . '/lib/private/Route/Route.php',
     'OC\\Route\\Router' => $baseDir . '/lib/private/Route/Router.php',
     'OC\\Search' => $baseDir . '/lib/private/Search.php',
+    'OC\\Search\\FilterCollection' => $baseDir . '/lib/private/Search/FilterCollection.php',
+    'OC\\Search\\FilterFactory' => $baseDir . '/lib/private/Search/FilterFactory.php',
+    'OC\\Search\\Filter\\BooleanFilter' => $baseDir . '/lib/private/Search/Filter/BooleanFilter.php',
+    'OC\\Search\\Filter\\DateTimeFilter' => $baseDir . '/lib/private/Search/Filter/DateTimeFilter.php',
+    'OC\\Search\\Filter\\FloatFilter' => $baseDir . '/lib/private/Search/Filter/FloatFilter.php',
+    'OC\\Search\\Filter\\GroupFilter' => $baseDir . '/lib/private/Search/Filter/GroupFilter.php',
+    'OC\\Search\\Filter\\IntegerFilter' => $baseDir . '/lib/private/Search/Filter/IntegerFilter.php',
+    'OC\\Search\\Filter\\StringFilter' => $baseDir . '/lib/private/Search/Filter/StringFilter.php',
+    'OC\\Search\\Filter\\StringsFilter' => $baseDir . '/lib/private/Search/Filter/StringsFilter.php',
+    'OC\\Search\\Filter\\UserFilter' => $baseDir . '/lib/private/Search/Filter/UserFilter.php',
     'OC\\Search\\Provider\\File' => $baseDir . '/lib/private/Search/Provider/File.php',
     'OC\\Search\\Result\\Audio' => $baseDir . '/lib/private/Search/Result/Audio.php',
     'OC\\Search\\Result\\File' => $baseDir . '/lib/private/Search/Result/File.php',
@@ -1648,6 +1662,7 @@
     'OC\\Search\\Result\\Image' => $baseDir . '/lib/private/Search/Result/Image.php',
     'OC\\Search\\SearchComposer' => $baseDir . '/lib/private/Search/SearchComposer.php',
     'OC\\Search\\SearchQuery' => $baseDir . '/lib/private/Search/SearchQuery.php',
+    'OC\\Search\\UnsupportedFilter' => $baseDir . '/lib/private/Search/UnsupportedFilter.php',
     'OC\\Security\\Bruteforce\\Backend\\DatabaseBackend' => $baseDir . '/lib/private/Security/Bruteforce/Backend/DatabaseBackend.php',
     'OC\\Security\\Bruteforce\\Backend\\IBackend' => $baseDir . '/lib/private/Security/Bruteforce/Backend/IBackend.php',
     'OC\\Security\\Bruteforce\\Backend\\MemoryCacheBackend' => $baseDir . '/lib/private/Security/Bruteforce/Backend/MemoryCacheBackend.php',
diff --git a/lib/composer/composer/autoload_static.php b/lib/composer/composer/autoload_static.php
index bd674e317a29a..b19f568ac1f0d 100644
--- a/lib/composer/composer/autoload_static.php
+++ b/lib/composer/composer/autoload_static.php
@@ -622,6 +622,10 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OCP\\Route\\IRouter' => __DIR__ . '/../../..' . '/lib/public/Route/IRouter.php',
         'OCP\\SabrePluginEvent' => __DIR__ . '/../../..' . '/lib/public/SabrePluginEvent.php',
         'OCP\\SabrePluginException' => __DIR__ . '/../../..' . '/lib/public/SabrePluginException.php',
+        'OCP\\Search\\FilterDefinition' => __DIR__ . '/../../..' . '/lib/public/Search/FilterDefinition.php',
+        'OCP\\Search\\IFilter' => __DIR__ . '/../../..' . '/lib/public/Search/IFilter.php',
+        'OCP\\Search\\IFilterCollection' => __DIR__ . '/../../..' . '/lib/public/Search/IFilterCollection.php',
+        'OCP\\Search\\IFilteringProvider' => __DIR__ . '/../../..' . '/lib/public/Search/IFilteringProvider.php',
         'OCP\\Search\\IProvider' => __DIR__ . '/../../..' . '/lib/public/Search/IProvider.php',
         'OCP\\Search\\ISearchQuery' => __DIR__ . '/../../..' . '/lib/public/Search/ISearchQuery.php',
         'OCP\\Search\\PagedProvider' => __DIR__ . '/../../..' . '/lib/public/Search/PagedProvider.php',
@@ -1674,6 +1678,16 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OC\\Route\\Route' => __DIR__ . '/../../..' . '/lib/private/Route/Route.php',
         'OC\\Route\\Router' => __DIR__ . '/../../..' . '/lib/private/Route/Router.php',
         'OC\\Search' => __DIR__ . '/../../..' . '/lib/private/Search.php',
+        'OC\\Search\\FilterCollection' => __DIR__ . '/../../..' . '/lib/private/Search/FilterCollection.php',
+        'OC\\Search\\FilterFactory' => __DIR__ . '/../../..' . '/lib/private/Search/FilterFactory.php',
+        'OC\\Search\\Filter\\BooleanFilter' => __DIR__ . '/../../..' . '/lib/private/Search/Filter/BooleanFilter.php',
+        'OC\\Search\\Filter\\DateTimeFilter' => __DIR__ . '/../../..' . '/lib/private/Search/Filter/DateTimeFilter.php',
+        'OC\\Search\\Filter\\FloatFilter' => __DIR__ . '/../../..' . '/lib/private/Search/Filter/FloatFilter.php',
+        'OC\\Search\\Filter\\GroupFilter' => __DIR__ . '/../../..' . '/lib/private/Search/Filter/GroupFilter.php',
+        'OC\\Search\\Filter\\IntegerFilter' => __DIR__ . '/../../..' . '/lib/private/Search/Filter/IntegerFilter.php',
+        'OC\\Search\\Filter\\StringFilter' => __DIR__ . '/../../..' . '/lib/private/Search/Filter/StringFilter.php',
+        'OC\\Search\\Filter\\StringsFilter' => __DIR__ . '/../../..' . '/lib/private/Search/Filter/StringsFilter.php',
+        'OC\\Search\\Filter\\UserFilter' => __DIR__ . '/../../..' . '/lib/private/Search/Filter/UserFilter.php',
         'OC\\Search\\Provider\\File' => __DIR__ . '/../../..' . '/lib/private/Search/Provider/File.php',
         'OC\\Search\\Result\\Audio' => __DIR__ . '/../../..' . '/lib/private/Search/Result/Audio.php',
         'OC\\Search\\Result\\File' => __DIR__ . '/../../..' . '/lib/private/Search/Result/File.php',
@@ -1681,6 +1695,7 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OC\\Search\\Result\\Image' => __DIR__ . '/../../..' . '/lib/private/Search/Result/Image.php',
         'OC\\Search\\SearchComposer' => __DIR__ . '/../../..' . '/lib/private/Search/SearchComposer.php',
         'OC\\Search\\SearchQuery' => __DIR__ . '/../../..' . '/lib/private/Search/SearchQuery.php',
+        'OC\\Search\\UnsupportedFilter' => __DIR__ . '/../../..' . '/lib/private/Search/UnsupportedFilter.php',
         'OC\\Security\\Bruteforce\\Backend\\DatabaseBackend' => __DIR__ . '/../../..' . '/lib/private/Security/Bruteforce/Backend/DatabaseBackend.php',
         'OC\\Security\\Bruteforce\\Backend\\IBackend' => __DIR__ . '/../../..' . '/lib/private/Security/Bruteforce/Backend/IBackend.php',
         'OC\\Security\\Bruteforce\\Backend\\MemoryCacheBackend' => __DIR__ . '/../../..' . '/lib/private/Security/Bruteforce/Backend/MemoryCacheBackend.php',
diff --git a/lib/composer/composer/installed.php b/lib/composer/composer/installed.php
index 1f382499aeb21..7115927cba0e9 100644
--- a/lib/composer/composer/installed.php
+++ b/lib/composer/composer/installed.php
@@ -1,22 +1,22 @@
 <?php return array(
     'root' => array(
-        'pretty_version' => '1.0.0+no-version-set',
-        'version' => '1.0.0.0',
+        'name' => '__root__',
+        'pretty_version' => 'dev-master',
+        'version' => 'dev-master',
+        'reference' => '41d274cd58f168047eb6a7673a7e43fff69ac07f',
         'type' => 'library',
         'install_path' => __DIR__ . '/../../../',
         'aliases' => array(),
-        'reference' => NULL,
-        'name' => '__root__',
         'dev' => false,
     ),
     'versions' => array(
         '__root__' => array(
-            'pretty_version' => '1.0.0+no-version-set',
-            'version' => '1.0.0.0',
+            'pretty_version' => 'dev-master',
+            'version' => 'dev-master',
+            'reference' => '41d274cd58f168047eb6a7673a7e43fff69ac07f',
             'type' => 'library',
             'install_path' => __DIR__ . '/../../../',
             'aliases' => array(),
-            'reference' => NULL,
             'dev_requirement' => false,
         ),
     ),
diff --git a/lib/private/Files/Cache/CacheQueryBuilder.php b/lib/private/Files/Cache/CacheQueryBuilder.php
index 27f66e63e7bf3..7971b5c630715 100644
--- a/lib/private/Files/Cache/CacheQueryBuilder.php
+++ b/lib/private/Files/Cache/CacheQueryBuilder.php
@@ -71,7 +71,7 @@ public function selectTagUsage(): self {
 	public function selectFileCache(string $alias = null, bool $joinExtendedCache = true) {
 		$name = $alias ?: 'filecache';
 		$this->select("$name.fileid", 'storage', 'path', 'path_hash', "$name.parent", "$name.name", 'mimetype', 'mimepart', 'size', 'mtime',
-			'storage_mtime', 'encrypted', 'etag', 'permissions', 'checksum', 'unencrypted_size')
+			'storage_mtime', 'encrypted', 'etag', "$name.permissions", 'checksum', 'unencrypted_size')
 			->from('filecache', $name);
 
 		if ($joinExtendedCache) {
diff --git a/lib/private/Files/Cache/QuerySearchHelper.php b/lib/private/Files/Cache/QuerySearchHelper.php
index f8e5d1608f742..6aa230c842f2d 100644
--- a/lib/private/Files/Cache/QuerySearchHelper.php
+++ b/lib/private/Files/Cache/QuerySearchHelper.php
@@ -134,6 +134,11 @@ protected function equipQueryForDavTags(CacheQueryBuilder $query, IUser $user):
 			));
 	}
 
+
+	protected function equipQueryForShares(CacheQueryBuilder $query): void {
+		$query->join('file', 'share', 's', $query->expr()->eq('file.fileid', 's.file_source'));
+	}
+
 	/**
 	 * Perform a file system search in multiple caches
 	 *
@@ -172,6 +177,9 @@ public function searchInCaches(ISearchQuery $searchQuery, array $caches): array
 		if (in_array('tagname', $requestedFields) || in_array('favorite', $requestedFields)) {
 			$this->equipQueryForDavTags($query, $this->requireUser($searchQuery));
 		}
+		if (in_array('owner', $requestedFields) || in_array('share_with', $requestedFields) || in_array('share_type', $requestedFields)) {
+			$this->equipQueryForShares($query);
+		}
 
 		$metadataQuery = $query->selectMetadata();
 
diff --git a/lib/private/Files/Cache/SearchBuilder.php b/lib/private/Files/Cache/SearchBuilder.php
index 1f9a6af931b2d..860d5e41d89a1 100644
--- a/lib/private/Files/Cache/SearchBuilder.php
+++ b/lib/private/Files/Cache/SearchBuilder.php
@@ -192,6 +192,8 @@ private function getOperatorFieldAndValue(ISearchComparison $operator) {
 		} elseif ($field === 'path' && $type === ISearchComparison::COMPARE_EQUAL && $operator->getQueryHint(ISearchComparison::HINT_PATH_EQ_HASH, true)) {
 			$field = 'path_hash';
 			$value = md5((string)$value);
+		} elseif ($field === 'owner') {
+			$field = 'uid_owner';
 		}
 		return [$field, $value, $type];
 	}
@@ -208,6 +210,9 @@ private function validateComparison(ISearchComparison $operator) {
 			'favorite' => 'boolean',
 			'fileid' => 'integer',
 			'storage' => 'integer',
+			'share_with' => 'string',
+			'share_type' => 'integer',
+			'owner' => 'string',
 		];
 		$comparisons = [
 			'mimetype' => ['eq', 'like'],
@@ -220,6 +225,9 @@ private function validateComparison(ISearchComparison $operator) {
 			'favorite' => ['eq'],
 			'fileid' => ['eq'],
 			'storage' => ['eq'],
+			'share_with' => ['eq'],
+			'share_type' => ['eq'],
+			'owner' => ['eq'],
 		];
 
 		if (!isset($types[$operator->getField()])) {
diff --git a/lib/private/Search/Filter/BooleanFilter.php b/lib/private/Search/Filter/BooleanFilter.php
new file mode 100644
index 0000000000000..a64bf17f31c20
--- /dev/null
+++ b/lib/private/Search/Filter/BooleanFilter.php
@@ -0,0 +1,46 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2023 Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @author Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Search\Filter;
+
+use InvalidArgumentException;
+use OCP\Search\IFilter;
+
+class BooleanFilter implements IFilter {
+	private bool $value;
+
+	public function __construct(string $value) {
+		$this->value = match ($value) {
+			'true', 'yes', 'y', '1' => true,
+			'false', 'no', 'n', '0', '' => false,
+			default => throw new InvalidArgumentException('Invalid boolean value '. $value),
+		};
+	}
+
+	public function get(): bool {
+		return $this->value;
+	}
+}
diff --git a/lib/private/Search/Filter/DateTimeFilter.php b/lib/private/Search/Filter/DateTimeFilter.php
new file mode 100644
index 0000000000000..79abf9ad542c0
--- /dev/null
+++ b/lib/private/Search/Filter/DateTimeFilter.php
@@ -0,0 +1,46 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2023 Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @author Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Search\Filter;
+
+use DateTimeImmutable;
+use OCP\Search\IFilter;
+
+class DateTimeFilter implements IFilter {
+	private DateTimeImmutable $value;
+
+	public function __construct(string $value) {
+		if (filter_var($value, FILTER_VALIDATE_INT)) {
+			$value = '@'.$value;
+		}
+
+		$this->value = new DateTimeImmutable($value);
+	}
+
+	public function get(): DateTimeImmutable {
+		return $this->value;
+	}
+}
diff --git a/lib/private/Search/Filter/FloatFilter.php b/lib/private/Search/Filter/FloatFilter.php
new file mode 100644
index 0000000000000..3db19ded59b43
--- /dev/null
+++ b/lib/private/Search/Filter/FloatFilter.php
@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2023 Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @author Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Search\Filter;
+
+use InvalidArgumentException;
+use OCP\Search\IFilter;
+
+class FloatFilter implements IFilter {
+	private float $value;
+
+	public function __construct(string $value) {
+		$this->value = filter_var($value, FILTER_VALIDATE_FLOAT);
+		if ($this->value === false) {
+			throw new InvalidArgumentException('Invalid float value '. $value);
+		}
+	}
+
+	public function get(): float {
+		return $this->value;
+	}
+}
diff --git a/lib/private/Search/Filter/GroupFilter.php b/lib/private/Search/Filter/GroupFilter.php
new file mode 100644
index 0000000000000..6b42492824c4b
--- /dev/null
+++ b/lib/private/Search/Filter/GroupFilter.php
@@ -0,0 +1,50 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2023 Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @author Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Search\Filter;
+
+use InvalidArgumentException;
+use OCP\IGroup;
+use OCP\IGroupManager;
+use OCP\Search\IFilter;
+
+class GroupFilter implements IFilter {
+	private IGroup $group;
+
+	public function __construct(
+		string $value,
+		IGroupManager $groupManager,
+	) {
+		$this->group = $groupManager->get($value);
+		if ($this->group === null) {
+			throw new InvalidArgumentException('Group '.$value.' not found');
+		}
+	}
+
+	public function get(): IGroup {
+		return $this->group;
+	}
+}
diff --git a/lib/private/Search/Filter/IntegerFilter.php b/lib/private/Search/Filter/IntegerFilter.php
new file mode 100644
index 0000000000000..b5b907b220e09
--- /dev/null
+++ b/lib/private/Search/Filter/IntegerFilter.php
@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2023 Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @author Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Search\Filter;
+
+use InvalidArgumentException;
+use OCP\Search\IFilter;
+
+class IntegerFilter implements IFilter {
+	private int $value;
+
+	public function __construct(string $value) {
+		$this->value = filter_var($value, FILTER_VALIDATE_INT);
+		if ($this->value === false) {
+			throw new InvalidArgumentException('Invalid integer value '. $value);
+		}
+	}
+
+	public function get(): int {
+		return $this->value;
+	}
+}
diff --git a/lib/private/Search/Filter/StringFilter.php b/lib/private/Search/Filter/StringFilter.php
new file mode 100644
index 0000000000000..8f754d1205171
--- /dev/null
+++ b/lib/private/Search/Filter/StringFilter.php
@@ -0,0 +1,44 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2023 Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @author Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Search\Filter;
+
+use InvalidArgumentException;
+use OCP\Search\IFilter;
+
+class StringFilter implements IFilter {
+	public function __construct(
+		private string $value,
+	) {
+		if ($value === '') {
+			throw new InvalidArgumentException('String filter can’t be empty');
+		}
+	}
+
+	public function get(): string {
+		return $this->value;
+	}
+}
diff --git a/lib/private/Search/Filter/StringsFilter.php b/lib/private/Search/Filter/StringsFilter.php
new file mode 100644
index 0000000000000..7a8d88768e8c0
--- /dev/null
+++ b/lib/private/Search/Filter/StringsFilter.php
@@ -0,0 +1,51 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2023 Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @author Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Search\Filter;
+
+use InvalidArgumentException;
+use OCP\Search\IFilter;
+
+class StringsFilter implements IFilter {
+	/**
+	 * @var string[]
+	 */
+	private array $values;
+
+	public function __construct(string ...$values) {
+		$this->values = array_unique(array_filter($values));
+		if (empty($this->values)) {
+			throw new InvalidArgumentException('Strings filter can’t be empty');
+		}
+	}
+
+	/**
+	 * @return string[]
+	 */
+	public function get(): array {
+		return $this->values;
+	}
+}
diff --git a/lib/private/Search/Filter/UserFilter.php b/lib/private/Search/Filter/UserFilter.php
new file mode 100644
index 0000000000000..1624b60d1a307
--- /dev/null
+++ b/lib/private/Search/Filter/UserFilter.php
@@ -0,0 +1,50 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2023 Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @author Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Search\Filter;
+
+use InvalidArgumentException;
+use OCP\IUser;
+use OCP\IUserManager;
+use OCP\Search\IFilter;
+
+class UserFilter implements IFilter {
+	private IUser $user;
+
+	public function __construct(
+		string $value,
+		IUserManager $userManager,
+	) {
+		$this->user = $userManager->get($value);
+		if ($this->user === null) {
+			throw new InvalidArgumentException('User '.$value.' not found');
+		}
+	}
+
+	public function get(): IUser {
+		return $this->user;
+	}
+}
diff --git a/lib/private/Search/FilterCollection.php b/lib/private/Search/FilterCollection.php
new file mode 100644
index 0000000000000..8c23cc7c11069
--- /dev/null
+++ b/lib/private/Search/FilterCollection.php
@@ -0,0 +1,60 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2023 Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @author Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+namespace OC\Search;
+
+use Generator;
+use OCP\Search\IFilterCollection;
+use OCP\Search\IFilter;
+
+/**
+ * Interface for search filters
+ *
+ * @since 28.0.0
+ */
+class FilterCollection implements IFilterCollection {
+	/**
+	 * @var IFilter[]
+	 */
+	private array $filters;
+
+	public function __construct(IFilter ...$filters) {
+		$this->filters = $filters;
+	}
+
+	public function has(string $name): bool {
+		return isset($this->filters[$name]);
+	}
+
+	public function get(string $name): ?IFilter {
+		return $this->filters[$name] ?? null;
+	}
+
+	public function getIterator(): Generator {
+		foreach ($this->filters as $k => $v) {
+			yield $k => $v;
+		}
+	}
+}
diff --git a/lib/private/Search/FilterFactory.php b/lib/private/Search/FilterFactory.php
new file mode 100644
index 0000000000000..19afb2c04be52
--- /dev/null
+++ b/lib/private/Search/FilterFactory.php
@@ -0,0 +1,58 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2023 Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @author Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+namespace OC\Search;
+
+use OCP\Search\FilterDefinition;
+use OCP\Search\IFilter;
+use OCP\IGroupManager;
+use OCP\IUserManager;
+use RuntimeException;
+
+final class FilterFactory {
+	public static function get(string $type, string|array $filter): IFilter {
+		return match ($type) {
+			FilterDefinition::TYPE_BOOL => new Filter\BooleanFilter($filter),
+			FilterDefinition::TYPE_DATETIME => new Filter\DateTimeFilter($filter),
+			FilterDefinition::TYPE_FLOAT => new Filter\FloatFilter($filter),
+			FilterDefinition::TYPE_INT => new Filter\IntegerFilter($filter),
+			FilterDefinition::TYPE_NC_GROUP => new Filter\GroupFilter($filter, \OC::$server->get(IGroupManager::class)),
+			FilterDefinition::TYPE_NC_USER => new Filter\UserFilter($filter, \OC::$server->get(IUserManager::class)),
+			FilterDefinition::TYPE_PERSON => self::getPerson($filter),
+			FilterDefinition::TYPE_STRING => new Filter\StringFilter($filter),
+			FilterDefinition::TYPE_STRINGS => new Filter\StringsFilter(... (array) $filter),
+			default => throw new RuntimeException('Invalid filter type '. $type),
+		};
+	}
+
+	private static function getPerson(string $person): IFilter {
+		$parts = explode('_', $person, 2);
+
+		return match (count($parts)) {
+			1 => self::get(FilterDefinition::TYPE_NC_USER, $person),
+			2 => self::get(... $parts),
+		};
+	}
+}
diff --git a/lib/private/Search/SearchComposer.php b/lib/private/Search/SearchComposer.php
index 4ec73ec54e976..41d969ca90bc5 100644
--- a/lib/private/Search/SearchComposer.php
+++ b/lib/private/Search/SearchComposer.php
@@ -28,14 +28,19 @@
 namespace OC\Search;
 
 use InvalidArgumentException;
-use OCP\AppFramework\QueryException;
-use OCP\IServerContainer;
+use OCP\IURLGenerator;
+use OCP\Search\FilterDefinition;
+use OCP\Search\IFilteringProvider;
+use OC\AppFramework\Bootstrap\Coordinator;
 use OCP\IUser;
+use OCP\Search\IFilter;
 use OCP\Search\IProvider;
 use OCP\Search\ISearchQuery;
 use OCP\Search\SearchResult;
-use OC\AppFramework\Bootstrap\Coordinator;
+use Psr\Container\ContainerExceptionInterface;
+use Psr\Container\ContainerInterface;
 use Psr\Log\LoggerInterface;
+use RuntimeException;
 use function array_map;
 
 /**
@@ -58,31 +63,40 @@
  * @see IProvider::search() for the arguments of the individual search requests
  */
 class SearchComposer {
-	/** @var IProvider[] */
-	private $providers = [];
-
-	/** @var Coordinator */
-	private $bootstrapCoordinator;
+	/**
+	 * @var array<string, array{appId: string, provider: IProvider}>
+	 */
+	private array $providers = [];
 
-	/** @var IServerContainer */
-	private $container;
+	private array $commonFilters;
+	private array $customFilters = [];
 
-	private LoggerInterface $logger;
+	private array $handlers = [];
 
-	public function __construct(Coordinator $bootstrapCoordinator,
-								IServerContainer $container,
-								LoggerInterface $logger) {
-		$this->container = $container;
-		$this->logger = $logger;
-		$this->bootstrapCoordinator = $bootstrapCoordinator;
+	public function __construct(
+		private Coordinator $bootstrapCoordinator,
+		private ContainerInterface $container,
+		private IURLGenerator $urlGenerator,
+		private LoggerInterface $logger
+	) {
+		$this->commonFilters = [
+			'term' => new FilterDefinition('term', FilterDefinition::TYPE_STRING),
+			'since' => new FilterDefinition('since', FilterDefinition::TYPE_DATETIME),
+			'until' => new FilterDefinition('until', FilterDefinition::TYPE_DATETIME),
+			'title-only' => new FilterDefinition('title-only', FilterDefinition::TYPE_BOOL, false),
+			'person' => new FilterDefinition('person', FilterDefinition::TYPE_PERSON),
+			'places' => new FilterDefinition('places', FilterDefinition::TYPE_STRINGS, false),
+			'provider' => new FilterDefinition('provider', FilterDefinition::TYPE_STRING, false),
+		];
 	}
 
 	/**
 	 * Load all providers dynamically that were registered through `registerProvider`
 	 *
+	 * If $targetProviderId is provided, only this provider is loaded
 	 * If a provider can't be loaded we log it but the operation continues nevertheless
 	 */
-	private function loadLazyProviders(): void {
+	private function loadLazyProviders(?string $targetProviderId = null): void {
 		$context = $this->bootstrapCoordinator->getRegistrationContext();
 		if ($context === null) {
 			// Too early, nothing registered yet
@@ -93,9 +107,20 @@ private function loadLazyProviders(): void {
 		foreach ($registrations as $registration) {
 			try {
 				/** @var IProvider $provider */
-				$provider = $this->container->query($registration->getService());
-				$this->providers[$provider->getId()] = $provider;
-			} catch (QueryException $e) {
+				$provider = $this->container->get($registration->getService());
+				$providerId = $provider->getId();
+				if ($targetProviderId !== null && $targetProviderId !== $providerId) {
+					continue;
+				}
+				$this->providers[$providerId] = [
+					'appId' => $registration->getAppId(),
+					'provider' => $provider,
+				];
+				$this->handlers[$providerId] = [$providerId];
+				if ($targetProviderId !== null) {
+					break;
+				}
+			} catch (ContainerExceptionInterface $e) {
 				// Log an continue. We can be fault tolerant here.
 				$this->logger->error('Could not load search provider dynamically: ' . $e->getMessage(), [
 					'exception' => $e,
@@ -103,6 +128,43 @@ private function loadLazyProviders(): void {
 				]);
 			}
 		}
+
+		$this->loadFilters();
+	}
+
+	private function loadFilters(): void {
+		foreach ($this->providers as $providerId => $providerData) {
+			$appId = $providerData['appId'];
+			$provider = $providerData['provider'];
+			if (!$provider instanceof IFilteringProvider) {
+				continue;
+			}
+
+			foreach ($provider->getCustomFilters() as $filter) {
+				$this->registerCustomFilter($filter, $providerId);
+			}
+			foreach ($provider->getAlternateIds() as $alternateId) {
+				$this->handlers[$alternateId][] = $providerId;
+			}
+			foreach ($provider->getSupportedFilters() as $filterName) {
+				if ($this->getFilterDefinition($filterName, $providerId) === null) {
+					throw new InvalidArgumentException('Invalid filter '. $filterName);
+				}
+			}
+		}
+	}
+
+	private function registerCustomFilter(FilterDefinition $filter, string $providerId): void {
+		$name = $filter->name();
+		if (isset($this->commonFilters[$name])) {
+			throw new InvalidArgumentException('Filter name is already used');
+		}
+
+		if (isset($this->customFilters[$providerId])) {
+			$this->customFilters[$providerId][$name] = $filter;
+		} else {
+			$this->customFilters[$providerId] = [$name => $filter];
+		}
 	}
 
 	/**
@@ -117,26 +179,134 @@ private function loadLazyProviders(): void {
 	public function getProviders(string $route, array $routeParameters): array {
 		$this->loadLazyProviders();
 
-		$providers = array_values(
-			array_map(function (IProvider $provider) use ($route, $routeParameters) {
+		$providers = array_map(
+			function (array $providerData) use ($route, $routeParameters) {
+				$appId = $providerData['appId'];
+				$provider = $providerData['provider'];
+				$triggers = [$provider->getId()];
+				if ($provider instanceof IFilteringProvider) {
+					$triggers += $provider->getAlternateIds();
+					$filters = $provider->getSupportedFilters();
+				} else {
+					$filters = ['term'];
+				}
+
 				return [
 					'id' => $provider->getId(),
+					'appId' => $appId,
 					'name' => $provider->getName(),
+					'icon' => $this->fetchIcon($appId, $provider->getId()),
 					'order' => $provider->getOrder($route, $routeParameters),
+					'triggers' => $triggers,
+					'filters' => $this->getFiltersType($filters, $provider->getId()),
 				];
-			}, $this->providers)
+			},
+			$this->providers,
 		);
 
+		// Sort providers by order and strip associative keys
 		usort($providers, function ($provider1, $provider2) {
 			return $provider1['order'] <=> $provider2['order'];
 		});
 
-		/**
-		 * Return an array with the IDs, but strip the associative keys
-		 */
 		return $providers;
 	}
 
+	private function fetchIcon(string $appId, string $providerId): string {
+		$icons = [
+			[$providerId, $providerId.'.svg'],
+			[$providerId, 'app.svg'],
+			[$appId, $providerId.'.svg'],
+			[$appId, $appId.'.svg'],
+			[$appId, 'app.svg'],
+			['core', 'places/default-app-icon.svg'],
+		];
+		foreach ($icons as $i => $icon) {
+			try {
+				return $this->urlGenerator->imagePath(... $icon);
+			} catch (RuntimeException $e) {
+				// Ignore error
+			}
+		}
+
+		return '';
+	}
+
+	/**
+	 * @param $filters string[]
+	 * @return array<string, string>
+	 */
+	private function getFiltersType(array $filters, string $providerId): array {
+		$filterList = [];
+		foreach ($filters as $filter) {
+			$filterList[$filter] = $this->getFilterDefinition($filter, $providerId)->type();
+		}
+
+		return $filterList;
+	}
+
+	private function getFilterDefinition(string $name, string $providerId): ?FilterDefinition {
+		if (isset($this->commonFilters[$name])) {
+			return $this->commonFilters[$name];
+		}
+		if (isset($this->customFilters[$providerId][$name])) {
+			return $this->customFilters[$providerId][$name];
+		}
+
+		return null;
+	}
+
+	/**
+	 * @param array<string, string> $parameters
+	 */
+	public function buildFilterList(string $providerId, array $parameters): FilterCollection {
+		$this->loadLazyProviders($providerId);
+
+		$list = [];
+		foreach ($parameters as $name => $value) {
+			$filter = $this->buildFilter($name, $value, $providerId);
+			if ($filter === null) {
+				continue;
+			}
+			$list[$name] = $filter;
+		}
+
+		return new FilterCollection(... $list);
+	}
+
+	private function buildFilter(string $name, string $value, string $providerId): ?IFilter {
+		$filterDefinition = $this->getFilterDefinition($name, $providerId);
+		if ($filterDefinition === null) {
+			$this->logger->debug('Unable to find {name} definition', [
+				'name' => $name,
+				'value' => $value,
+			]);
+
+			return null;
+		}
+
+		if (!$this->filterSupportedByProvider($filterDefinition, $providerId)) {
+			// FIXME Use dedicated exception and handle it
+			throw new UnsupportedFilter($name, $providerId);
+		}
+
+		return FilterFactory::get($filterDefinition->type(), $value);
+	}
+
+	private function filterSupportedByProvider(FilterDefinition $filterDefinition, string $providerId): bool {
+		// Non exclusive filters can be ommited by apps
+		if (!$filterDefinition->exclusive()) {
+			return true;
+		}
+
+		$provider = $this->providers[$providerId]['provider'];
+		$supportedFilters = $provider instanceof IFilteringProvider
+			? $provider->getSupportedFilters()
+			: ['term'];
+
+		return in_array($filterDefinition->name(), $supportedFilters, true);
+	}
+
 	/**
 	 * Query an individual search provider for results
 	 *
@@ -147,15 +317,18 @@ public function getProviders(string $route, array $routeParameters): array {
 	 * @return SearchResult
 	 * @throws InvalidArgumentException when the $providerId does not correspond to a registered provider
 	 */
-	public function search(IUser $user,
-						   string $providerId,
-						   ISearchQuery $query): SearchResult {
-		$this->loadLazyProviders();
+	public function search(
+		IUser $user,
+		string $providerId,
+		ISearchQuery $query,
+	): SearchResult {
+		$this->loadLazyProviders($providerId);
 
-		$provider = $this->providers[$providerId] ?? null;
+		$provider = $this->providers[$providerId]['provider'] ?? null;
 		if ($provider === null) {
 			throw new InvalidArgumentException("Provider $providerId is unknown");
 		}
+
 		return $provider->search($user, $query);
 	}
 }
diff --git a/lib/private/Search/SearchQuery.php b/lib/private/Search/SearchQuery.php
index c89446d59703b..aae2044bcd65a 100644
--- a/lib/private/Search/SearchQuery.php
+++ b/lib/private/Search/SearchQuery.php
@@ -27,89 +27,57 @@
  */
 namespace OC\Search;
 
+use OCP\Search\IFilterCollection;
+use OCP\Search\IFilter;
 use OCP\Search\ISearchQuery;
 
 class SearchQuery implements ISearchQuery {
 	public const LIMIT_DEFAULT = 5;
 
-	/** @var string */
-	private $term;
-
-	/** @var int */
-	private $sortOrder;
-
-	/** @var int */
-	private $limit;
-
-	/** @var int|string|null */
-	private $cursor;
-
-	/** @var string */
-	private $route;
-
-	/** @var array */
-	private $routeParameters;
-
 	/**
-	 * @param string $term
-	 * @param int $sortOrder
-	 * @param int $limit
-	 * @param int|string|null $cursor
-	 * @param string $route
-	 * @param array $routeParameters
+	 * @param string[] $params Request query
+	 * @param string[] $routeParameters
 	 */
-	public function __construct(string $term,
-								int $sortOrder = ISearchQuery::SORT_DATE_DESC,
-								int $limit = self::LIMIT_DEFAULT,
-								$cursor = null,
-								string $route = '',
-								array $routeParameters = []) {
-		$this->term = $term;
-		$this->sortOrder = $sortOrder;
-		$this->limit = $limit;
-		$this->cursor = $cursor;
-		$this->route = $route;
-		$this->routeParameters = $routeParameters;
+	public function __construct(
+		private IFilterCollection $filters,
+		private int $sortOrder = ISearchQuery::SORT_DATE_DESC,
+		private int $limit = self::LIMIT_DEFAULT,
+		private int|string|null $cursor = null,
+		private string $route = '',
+		private	array $routeParameters = [],
+	) {
 	}
 
-	/**
-	 * @inheritDoc
-	 */
 	public function getTerm(): string {
-		return $this->term;
+		return $this->getFilter('term')?->get() ?? '';
+	}
+
+	public function getFilter(string $name): ?IFilter {
+		return $this->filters->has($name)
+			? $this->filters->get($name)
+			: null;
+	}
+
+	public function getFilters(): IFilterCollection {
+		return $this->filters;
 	}
 
-	/**
-	 * @inheritDoc
-	 */
 	public function getSortOrder(): int {
 		return $this->sortOrder;
 	}
 
-	/**
-	 * @inheritDoc
-	 */
 	public function getLimit(): int {
 		return $this->limit;
 	}
 
-	/**
-	 * @inheritDoc
-	 */
-	public function getCursor() {
+	public function getCursor(): int|string|null {
 		return $this->cursor;
 	}
 
-	/**
-	 * @inheritDoc
-	 */
 	public function getRoute(): string {
 		return $this->route;
 	}
 
-	/**
-	 * @inheritDoc
-	 */
 	public function getRouteParameters(): array {
 		return $this->routeParameters;
 	}
diff --git a/lib/private/Search/UnsupportedFilter.php b/lib/private/Search/UnsupportedFilter.php
new file mode 100644
index 0000000000000..84b6163d2fa04
--- /dev/null
+++ b/lib/private/Search/UnsupportedFilter.php
@@ -0,0 +1,34 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2023 Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @author Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+namespace OC\Search;
+
+use Exception;
+
+final class UnsupportedFilter extends Exception {
+	public function __construct(string $filerName, $providerId) {
+		parent::__construct('Provider '.$providerId.' doesn’t support filter '.$filerName.'.');
+	}
+}
diff --git a/lib/public/Search/FilterDefinition.php b/lib/public/Search/FilterDefinition.php
new file mode 100644
index 0000000000000..7e1538acedb18
--- /dev/null
+++ b/lib/public/Search/FilterDefinition.php
@@ -0,0 +1,101 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2023 Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @author Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+namespace OCP\Search;
+
+use InvalidArgumentException;
+
+/**
+ * Filter definition
+ *
+ * Describe filter attributes
+ *
+ * @since 28.0.0
+ */
+class FilterDefinition {
+	public const TYPE_BOOL = 'bool';
+	public const TYPE_INT = 'int';
+	public const TYPE_FLOAT = 'float';
+	public const TYPE_STRING = 'string';
+	public const TYPE_STRINGS = 'strings';
+	public const TYPE_DATETIME = 'datetime';
+	public const TYPE_PERSON = 'person';
+	public const TYPE_NC_USER = 'nc-user';
+	public const TYPE_NC_GROUP = 'nc-group';
+
+	/**
+	 * Build filter definition
+	 *
+	 * @param self::TYPE_* $type
+	 * @param bool $exclusive If true, all providers not supporting this filter will be ignored when this filter is provided
+	 * @throw InvalidArgumentException in case of invalid name. Allowed characters are -, 0-9, a-z.
+	 * @since 28.0.0
+	 */
+	public function __construct(
+		private string $name,
+		private string $type = self::TYPE_STRING,
+		private bool $exclusive = true,
+	) {
+		if (!preg_match('/[-0-9a-z]+/Au', $name)) {
+			throw new InvalidArgumentException('Invalid filter name. Allowed characters are [-0-9a-z]');
+		}
+	}
+
+	/**
+	 * Filter name
+	 *
+	 * Name is used in query string and for advanced syntax `name: <value>`
+	 *
+	 * @since 28.0.0
+	 */
+	public function name(): string {
+		return $this->name;
+	}
+
+	/**
+	 * Filter type
+	 *
+	 * Expected type of value for the filter
+	 *
+	 * @return self::TYPE_*
+	 * @since 28.0.0
+	 */
+	public function type(): string {
+		return $this->type;
+	}
+
+	/**
+	 * Is filter exclusive?
+	 *
+	 * If exclusive, only provider with support for this filter will receive the query.
+	 * Example: if an exclusive filter `mimetype` is declared, a search with this term will not
+	 * be send to providers like `settings` that doesn't support it.
+	 *
+	 * @since 28.0.0
+	 */
+	public function exclusive(): bool {
+		return $this->exclusive;
+	}
+}
diff --git a/lib/public/Search/IFilter.php b/lib/public/Search/IFilter.php
new file mode 100644
index 0000000000000..c4e444e806b1f
--- /dev/null
+++ b/lib/public/Search/IFilter.php
@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2023 Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @author Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+namespace OCP\Search;
+
+/**
+ * Interface for search filters
+ *
+ * @since 28.0.0
+ */
+interface IFilter {
+	/**
+	 * Get filter value
+	 *
+	 * @since 28.0.0
+	 */
+	public function get(): mixed;
+}
diff --git a/lib/public/Search/IFilterCollection.php b/lib/public/Search/IFilterCollection.php
new file mode 100644
index 0000000000000..6ca53a1c628e5
--- /dev/null
+++ b/lib/public/Search/IFilterCollection.php
@@ -0,0 +1,57 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2023 Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @author Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+namespace OCP\Search;
+
+use IteratorAggregate;
+
+/**
+ * Interface for search filters
+ *
+ * @since 28.0.0
+ * @extends IteratorAggregate<string, \OCP\Search\IFilter>
+ */
+interface IFilterCollection extends IteratorAggregate {
+	/**
+	 * Check if a filter exits
+	 *
+	 * @since 28.0.0
+	 */
+	public function has(string $name): bool;
+
+	/**
+	 * Get a filter by name
+	 *
+	 * @since 28.0.0
+	 */
+	public function get(string $name): ?IFilter;
+
+	/**
+	 * Return Iterator of filters
+	 *
+	 * @since 28.0.0
+	 */
+	public function getIterator(): \Traversable;
+}
diff --git a/lib/public/Search/IFilteringProvider.php b/lib/public/Search/IFilteringProvider.php
new file mode 100644
index 0000000000000..dbe1044a539de
--- /dev/null
+++ b/lib/public/Search/IFilteringProvider.php
@@ -0,0 +1,72 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2023 Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @author Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+namespace OCP\Search;
+
+/**
+ * Interface for advanced search providers
+ *
+ * These providers will be implemented in apps, so they can participate in the
+ * global search results of Nextcloud. If an app provides more than one type of
+ * resource, e.g. contacts and address books in Nextcloud Contacts, it should
+ * register one provider per group.
+ *
+ * @since 28.0.0
+ */
+interface IFilteringProvider extends IProvider {
+	/**
+	 * Return the names of filters supported by the application
+	 *
+	 * If a filter sent by client is not in this list,
+	 * the current provider will be ignored.
+	 * Example:
+	 *   array('term', 'since', 'custom-filter');
+	 *
+	 * @since 28.0.0
+	 * @return string[] Name of supported filters (default or defined by application)
+	 */
+	public function getSupportedFilters(): array;
+
+	/**
+	 * Get alternate IDs handled by this provider
+	 *
+	 * A search provider can complete results from other search providers.
+	 * For example, files and full-text-search can search in files.
+	 * If you use `in:files` in a search, provider files will be invoked,
+	 * with all other providers declaring `files` in this method
+	 *
+	 * @since 28.0.0
+	 * @return string[] IDs
+	 */
+	public function getAlternateIds(): array;
+
+	/**
+	 * Allows application to declare custom filters
+	 *
+	 * @since 28.0.0
+	 * @return list<FilterDefinition>
+	 */
+	public function getCustomFilters(): array;
+}
diff --git a/lib/public/Search/ISearchQuery.php b/lib/public/Search/ISearchQuery.php
index a545d1dbccbac..56f1f1f0faaf4 100644
--- a/lib/public/Search/ISearchQuery.php
+++ b/lib/public/Search/ISearchQuery.php
@@ -48,9 +48,24 @@ interface ISearchQuery {
 	 *
 	 * @return string the search term
 	 * @since 20.0.0
+	 * @deprecated 28.0.0
 	 */
 	public function getTerm(): string;
 
+	/**
+	 * Get a single request filter
+	 *
+	 * @since 28.0.0
+	 */
+	public function getFilter(string $name): ?IFilter;
+
+	/**
+	 * Get request filters
+	 *
+	 * @since 28.0.0
+	 */
+	public function getFilters(): IFilterCollection;
+
 	/**
 	 * Get the sort order of results as defined as SORT_* constants on this interface
 	 *