v1.27.0

• build: support filtering cache by duration using --cache-ttl.
• build: support building from commit when using git repo as build context.
• build: clean up git repos correctly when using subdirs.
• build: add support for distributing cache to remote sources using --cache-to and --cache-from.
• imagebuildah: optimize cache hits for COPY and ADD instructions.
• build: support OCI hooks for ephemeral build containers.
• build: add support for --userns=auto.
• copier: add NoOverwriteNonDirDir option .
• add initial support for building images using Buildah on FreeBSD.
• multistage: this now skips the computing of unwanted stages to improve performance.
• multiarch: support splitting build logs for --platform using --logsplit.
• build: add support for building images where the base image has no history.
• commit: allow disabling image history with --omit-history.
• build: add support for renaming a device in rootless setups.
• build: now supports additionalBuildContext in builds via the --build-context option.
• build: --output produces artifacts even if the build container is not committed.
• build: now accepts -cpp-flag, allowing users to pass in CPP flags when processing a Containerfile with C Preprocessor-like syntax.
• build: now accepts a branch and a subdirectory when the build context is a git repository.
• build: output now shows a progress bar while pushing and pulling images
• build: now errors out if the path to Containerfile is a directory.
• build: support building container images on environments that are rootless and without any valid login sessions.
• fix: --output now generates artifacts even if the entire build is cached.
• fix: --output generates artifacts only for the target stage in multi-stage builds.
• fix,add: now fails on a bad HTTP response instead of writing to container
• fix,squash: never use build cache when computing the last step of the last stage
• fix,build,run: allow reusing secret more than once in different RUN steps
• fix: compatibility with Docker build by making its --label and --annotate options set empty labels and annotations when given a name but no = or label value.