From c03caeb85b1d1e746b92ed92d1573a11b8c9a6b4 Mon Sep 17 00:00:00 2001
From: Nicco Kunzmann <niccokunzmann@rambler.ru>
Date: Sat, 29 Jun 2024 17:25:14 +0100
Subject: [PATCH] Document RFCs

see also https://github.com/collective/icalendar/issues/589
---
 docs/usage.rst | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/docs/usage.rst b/docs/usage.rst
index 35ea03b5..e73fe742 100644
--- a/docs/usage.rst
+++ b/docs/usage.rst
@@ -7,6 +7,23 @@ standard in RFC 5545.
 It should be fully compliant, but it is possible to generate and parse invalid
 files if you really want to.
 
+Compatibility
+-------------
+
+This package is compatible with the following standards:
+
+- :rfc:`5545`
+- :rfc:`7529`
+
+We do not claim compatibility to:
+
+- :rfc:`2445` - which is obsoleted by :rfc:`5545`
+- :rfc:`6886`
+- :rfc:`7953`
+- :rfc:`7986`
+- :rfc:`9073`
+- :rfc:`9074`
+- :rfc:`9253`
 
 File structure
 --------------