update README.md

2026-01-30 11:48:18 +00:00 · 2026-01-24 22:53:51 +01:00
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@@ -24,6 +24,7 @@ a CalDAV/CardDAV server
 - Apple configuration profiles (skip copy-pasting passwords and instead generate the configuration in the frontend)
 - **OpenID Connect** support (with option to disable password login)
 - Group-based **sharing**
+- Partial [RFC 7809](https://datatracker.ietf.org/doc/html/rfc7809) support. RustiCal will accept timezones by reference and handle omitted timezones in objects.

 ## Getting Started