diff --git a/CHANGELOG.md b/CHANGELOG.md
index c1b313b..1e9ac45 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [2.10.0] — Unreleased
+## [2.10.0] — 2026-06-25
 
 ### Added
 - Turn a calendar off across the whole app. Settings → Calendars now has a
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 3a1f441..ad97564 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -28,8 +28,8 @@ android {
         // which builds this version and then creates the matching vX.Y.Z tag +
         // release itself (versionCode is pinned to MAJOR*10000 + MINOR*100 +
         // PATCH from versionName, e.g. 2.7.2 -> 20702). See docs/RELEASING.md.
-        versionCode = 20900
-        versionName = "2.9.0"
+        versionCode = 21000
+        versionName = "2.10.0"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }
diff --git a/fastlane/metadata/android/en-US/changelogs/21000.txt b/fastlane/metadata/android/en-US/changelogs/21000.txt
new file mode 100644
index 0000000..e2ed120
--- /dev/null
+++ b/fastlane/metadata/android/en-US/changelogs/21000.txt
@@ -0,0 +1,14 @@
+### Added
+- Turn a calendar off across the whole app. Settings → Calendars now has a
+  switch on every calendar — both your own and synced ones. Switching one off
+  removes it everywhere: its events disappear from all views and search, and it
+  drops out of the drawer's hide/show filter, the event-form calendar picker and
+  the import target picker. Unlike hiding (the quick per-view checkbox in the
+  drawer), a disabled calendar leaves the app entirely until you turn it back on.
+  Nothing is deleted and no other app is affected — it's a Calendula-only view
+  choice — so you can re-enable it any time from the same screen, where disabled
+  calendars stay listed but dimmed.
+- An optional way to support development. Settings → About now has a "Support
+  development" button that opens Ko-fi in your browser. It's a plain donation
+  link with no perks attached, and it needs no new permissions — Calendula still
+  has no internet access of its own and just hands the link to your browser.