diff --git a/CHANGELOG.md b/CHANGELOG.md
index 010253d413..e81da66bbe 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## [Unreleased]
+## [v1.43.0] - 2024-09-30
 
 - Add new experimental LSP support under `buf beta lsp`.
 
@@ -1264,7 +1264,7 @@ buf check breaking proto --against .git#branch=master,subdir=proto
 
 Initial beta release.
 
-[Unreleased]: https://github.com/bufbuild/buf/compare/v1.42.0...HEAD
+[v1.43.0]: https://github.com/bufbuild/buf/compare/v1.42.0...v1.43.0
 [v1.42.0]: https://github.com/bufbuild/buf/compare/v1.41.0...v1.42.0
 [v1.41.0]: https://github.com/bufbuild/buf/compare/v1.40.1...v1.41.0
 [v1.40.1]: https://github.com/bufbuild/buf/compare/v1.40.0...v1.40.1
diff --git a/private/buf/bufcli/bufcli.go b/private/buf/bufcli/bufcli.go
index c7c520716c..357a374fce 100644
--- a/private/buf/bufcli/bufcli.go
+++ b/private/buf/bufcli/bufcli.go
@@ -15,4 +15,4 @@
 package bufcli
 
 // Version is the CLI version of buf.
-const Version = "1.42.1-dev"
+const Version = "1.43.0"