diff --git a/CHANGELOG.md b/CHANGELOG.md
index c7b0f64146..a9819a6c79 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,54 @@
 
 All notable changes to this project will be documented in this file.
 
+## [4.3.8] - 2025-05-06
+
+### Security
+
+- Update dependencies
+- Check scheme on account, profile, and media URLs ([GHSA-x2rc-v5wx-g3m5](https://github.com/mastodon/mastodon/security/advisories/GHSA-x2rc-v5wx-g3m5))
+
+### Added
+
+- Add warning for REDIS_NAMESPACE deprecation at startup (#34581 by @ClearlyClaire)
+- Add built-in context for interaction policies (#34574 by @ClearlyClaire)
+
+### Changed
+
+- Change activity distribution error handling to skip retrying for deleted accounts (#33617 by @ClearlyClaire)
+
+### Removed
+
+- Remove double-query for signed query strings (#34610 by @ClearlyClaire)
+
+### Fixed
+
+- Fix incorrect redirect in response to unauthenticated API requests in limited federation mode (#34549 by @ClearlyClaire)
+- Fix sign-up e-mail confirmation page reloading on error or redirect (#34548 by @ClearlyClaire)
+
+## [4.3.7] - 2025-04-02
+
+### Added
+
+- Add delay to profile updates to debounce them (#34137 by @ClearlyClaire)
+- Add support for paginating partial collections in `SynchronizeFollowersService` (#34272 and #34277 by @ClearlyClaire)
+
+### Changed
+
+- Change account suspensions to be federated to recently-followed accounts as well (#34294 by @ClearlyClaire)
+- Change `AccountReachFinder` to consider statuses based on suspension date (#32805 and #34291 by @ClearlyClaire and @mjankowski)
+- Change user archive signed URL TTL from 10 seconds to 1 hour (#34254 by @ClearlyClaire)
+
+### Fixed
+
+- Fix static version of animated PNG emojis not being properly extracted (#34337 by @ClearlyClaire)
+- Fix filters not applying in detailed view, favourites and bookmarks (#34259 and #34260 by @ClearlyClaire)
+- Fix handling of malformed/unusual HTML (#34201 by @ClearlyClaire)
+- Fix `CacheBuster` being queued for missing media attachments (#34253 by @ClearlyClaire)
+- Fix incorrect URL being used when cache busting (#34189 by @ClearlyClaire)
+- Fix streaming server refusing unix socket path in `DATABASE_URL` (#34091 by @ClearlyClaire)
+- Fix “x” hotkey not working on boosted filtered posts (#33758 by @ClearlyClaire)
+
 ## [4.3.6] - 2025-03-13
 
 ### Security
diff --git a/Gemfile.lock b/Gemfile.lock
index 80049a7dc2..fdb5c12ed8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -446,7 +446,7 @@ GEM
     net-smtp (0.5.1)
       net-protocol
     nio4r (2.7.4)
-    nokogiri (1.18.7)
+    nokogiri (1.18.8)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     oj (3.16.10)
diff --git a/docker-compose.yml b/docker-compose.yml
index cc9254b21f..b88ea761dc 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -59,7 +59,7 @@ services:
   web:
     # You can uncomment the following line if you want to not use the prebuilt image, for example if you have local code changes
     build: .
-    image: kmyblue:18.0
+    image: kmyblue:18.1
     restart: always
     env_file: .env.production
     command: bundle exec puma -C config/puma.rb
@@ -83,7 +83,7 @@ services:
     build:
       dockerfile: ./streaming/Dockerfile
       context: .
-    image: kmyblue-streaming:18.0
+    image: kmyblue-streaming:18.1
     restart: always
     env_file: .env.production
     command: node ./streaming/index.js
@@ -101,7 +101,7 @@ services:
 
   sidekiq:
     build: .
-    image: kmyblue:18.0
+    image: kmyblue:18.1
     restart: always
     env_file: .env.production
     command: bundle exec sidekiq
diff --git a/lib/mastodon/version.rb b/lib/mastodon/version.rb
index 41887dfb31..e8eca96a71 100644
--- a/lib/mastodon/version.rb
+++ b/lib/mastodon/version.rb
@@ -13,7 +13,7 @@ module Mastodon
     end
 
     def kmyblue_minor
-      0
+      1
     end
 
     def kmyblue_flag
@@ -35,7 +35,7 @@ module Mastodon
     end
 
     def default_prerelease
-      'alpha.4'
+      'alpha.5'
     end
 
     def prerelease