Bump version to 1.21.6

Signed-off-by: David Shea <[email protected]>

Author: dashea

CHANGELOG.md

@@ -1,6 +1,18 @@
 ![buildah logo](https://cdn.rawgit.com/containers/buildah/master/logos/buildah-logo_large.png)
 
 # Changelog
+
+## v1.21.6 (2025-11-20)
+
+    Bump CI environment
+    Switch to moby/sys/userns for RunningInUserNS
+    Update go-selinux uses to handle API changes
+    Bump runc to v1.2.8 - CVE-2025-52881
+    tests/conformance/testdata/Dockerfile.add:...
+    conformance tests: don't break on trailing zeroes in layer blobs
+    conformance test: ignore file type bits when comparing layers
+    [release-1.21] Replace registry.centos.org
+
 ## v1.21.5 (2022-09-20)
     run: add container gid to additional groups
     run: do not set the inheritable capabilities

changelog.txt

@@ -1,3 +1,13 @@
+- Changelog for v1.21.6 (2025-11-20)
+  * Bump CI environment
+  * Switch to moby/sys/userns for RunningInUserNS
+  * Update go-selinux uses to handle API changes
+  * Bump runc to v1.2.8 - CVE-2025-52881
+  * tests/conformance/testdata/Dockerfile.add:...
+  * conformance tests: don't break on trailing zeroes in layer blobs
+  * conformance test: ignore file type bits when comparing layers
+  * [release-1.21] Replace registry.centos.org
+
 - 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"