diff --git a/CHANGELOG.md b/CHANGELOG.md
index 280917f02f..30399383d3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## [Unreleased]
+## [v2.9.0] - 2023-11-03
 
 - Something.
 
@@ -1010,7 +1010,7 @@ buf check breaking proto --against .git#branch=master,subdir=proto
 
 Initial beta release.
 
-[Unreleased]: https://github.com/bufbuild/buf/compare/v2.8.0...HEAD
+[v2.9.0]: https://github.com/bufbuild/buf/compare/v2.8.0...v2.9.0
 [v2.8.0]: https://github.com/bufbuild/buf/compare/v2.7.1...v2.8.0
 [v2.7.1]: https://github.com/bufbuild/buf/compare/2.6.1...v2.7.1
 [v2.6.1]: https://github.com/bufbuild/buf/compare/v2.6.0...v2.6.1
diff --git a/private/buf/bufcli/bufcli.go b/private/buf/bufcli/bufcli.go
index 3282881dc9..9057bd4ae2 100644
--- a/private/buf/bufcli/bufcli.go
+++ b/private/buf/bufcli/bufcli.go
@@ -65,7 +65,7 @@ import (
 
 const (
 	// Version is the CLI version of buf.
-	Version = "2.8.1-dev"
+	Version = "2.9.0"
 
 	inputHTTPSUsernameEnvKey      = "BUF_INPUT_HTTPS_USERNAME"
 	inputHTTPSPasswordEnvKey      = "BUF_INPUT_HTTPS_PASSWORD"