v8.0.0

BREAKING CHANGES

• The format for EncryptionSettings.sharingStrategy has changed. It must now be created using the CollectStrategy.deviceBasedStrategy(...) or CollectStrategy.identityBasedStrategy() functions. (#141)
  • The former DeviceBasedStrategyAllDevices should be replaced by CollectStrategy.deviceBasedStrategy(false, false)
  • The former DeviceBasedStrategyOnlyTrustedDevices should be replaced by CollectStrategy.deviceBasedStrategy(true, false)
  • The former IdentityBasedStrategy should be replaced by CollectStrategy.identityBasedStrategy()
• The OlmMachine.decryptRoomEvent has a new DecryptionSettings parameter that allows specifying the required sender trust level. If the trust level is not met, the decryption will fail. To replicate the old behaviour, use a sender trust level of TrustRequirement.Untrusted. (#141)

Security Fixes

• Fix UserIdentity.isVerified to take into account our own identity #d8d9dae (Moderate, GHSA-4qg4-cvh2-crgg).

Other changes

• Add (Own)UserIdentity.wasPreviouslyVerified(), (Own)UserIdentity.withdrawVerification(), and (Own)UserIdentity.hasVerificationViolation() to check and manage the state of users who were previously verified but are no longer verified. (#141)

• Add UserIdentity.pinCurrentMasterKey() and UserInfo.identityNeedsUserApproval() to manage user identity changes. (#141)

• ShieldState has a new code property that is set when the shield state is not None. (#141)

• Add a new API Device.encryptToDeviceEvent to encrypt a to-device message using Olm. (#101)

• Update matrix-rust-sdk to 07aa6d7bc, which includes:

  • NOTE: this version causes changes to the format of the serialised data in the CryptoStore, meaning that, once upgraded, it will not be possible to roll back applications to earlier versions without breaking user sessions.

  • Miscellaneous improvements to logging for verification and OwnUserIdentity updates. (#3949)

  • Add message IDs to all outgoing encrypted to-device messages. (#3776)