Bump version to v4.3.9

CHANGELOG.md

@@ -2,6 +2,28 @@
 
 All notable changes to this project will be documented in this file.
 
+## [4.3.9] - 2025-07-02
+
+### Changed
+
+- Change passthrough video processing to emit `moov` atom at start of video (#34726 by @ClearlyClaire)
+
+### Fixed
+
+- Fix `NoMethodError` in edge case of emoji cache handling (#34749 by @dariusk)
+- Fix error when viewing statuses to deleted replies in moderation view (#32986 by @ClearlyClaire)
+- Fix search operators sometimes getting lost (#35190 by @ClearlyClaire)
+- Fix “Alt text” button submitting form in moderation interface (#35147 by @ClearlyClaire)
+- Fix handling of remote attachments with multiple media types (#34996 by @ClearlyClaire)
+- Fix blocked accounts not being automatically removed from trending statuses (#34891 by @ClearlyClaire)
+- Fix inconsistent filtering of silenced accounts for other silenced accounts (#34863 by @ClearlyClaire)
+- Fix handling of inlined `featured` collections in ActivityPub actor objects (#34789 and #34811 by @ClearlyClaire)
+- Fix admin dashboard crash on specific Elasticsearch connection errors (#34683 by @ClearlyClaire)
+- Fix OIDC account creation failing for long display names (#34639 by @defnull)
+- Fix `/share` not using server-set characters limit (#33459 by @kescherCode)
+- Fix wrong video dimensions for some rotated videos (#33008 and #33261 by @Gargron and @tribela)
+- Fix missing autofocus on boost modal (#32953 by @tribela)
+
 ## [4.3.8] - 2025-05-06
 
 ### Security