Bump version to 1.21.6

Signed-off-by: David Shea <dshea@redhat.com>
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>

Author: dashea

CHANGELOG.md

@@ -1,6 +1,28 @@
 ![buildah logo](https://cdn.rawgit.com/containers/buildah/master/logos/buildah-logo_large.png)
 
 # Changelog
+
+## v1.21.6 (2025-12-11)
+    Bump runc to v1.2.9 - CVE-2025-52881
+    Makefile: drop non-Linux cross-compile targets
+    Update golang.org/x/tools to v0.26.0
+    tests/tools: update ginkgo and golangci-lint
+    Update other dependencies
+    Update go-selinux uses to handle API changes
+    Switch to moby/sys/userns for RunningInUserNS
+    Bump CI environment
+    CI: switch to debian for testing there
+    Handle errors.Cause() returning not-completely-unwrapped errors
+    Update to compensate for containers/common API changes
+    Update linter configuration and address some warnings
+    use c/image/pkg/blobcache
+    Stop setting "parent" in docker format
+    commit: set "parent" for docker format only when requested
+    Builder.SetWorkDir(): trim off a path separator suffix, if there is one
+    Update man pages
+    Make "buildah build" an alias for "buildah bud"
+    Update expected error messages
+
 ## v1.21.5 (2022-09-20)
     run: add container gid to additional groups
     run: do not set the inheritable capabilities

changelog.txt

@@ -1,3 +1,24 @@
+- Changelog for v1.21.6 (2025-12-09)
+  * Bump runc to v1.2.9 - CVE-2025-52881
+  * Makefile: drop non-Linux cross-compile targets
+  * Update golang.org/x/tools to v0.26.0
+  * tests/tools: update ginkgo and golangci-lint
+  * Update other dependencies
+  * Update go-selinux uses to handle API changes
+  * Switch to moby/sys/userns for RunningInUserNS
+  * Bump CI environment
+  * CI: switch to debian for testing there
+  * Handle errors.Cause() returning not-completely-unwrapped errors
+  * Update to compensate for containers/common API changes
+  * Update linter configuration and address some warnings
+  * use c/image/pkg/blobcache
+  * Stop setting "parent" in docker format
+  * commit: set "parent" for docker format only when requested
+  * Builder.SetWorkDir(): trim off a path separator suffix, if there is one
+  * Update man pages
+  * Make "buildah build" an alias for "buildah bud"
+  * Update expected error messages
+
 - Changelog for v1.21.5 (2022-09-20)
   * run: add container gid to additional groups
   * run: do not set the inheritable capabilities

define/types.go

@@ -28,7 +28,7 @@ const (
 	Package = "buildah"
 	// Version for the Package.  Bump version in contrib/rpm/buildah.spec
 	// too.
-	Version = "1.21.5"
+	Version = "1.21.6"
 
 	// DefaultRuntime if containers.conf fails.
 	DefaultRuntime = "runc"