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• Ensure default pull policy is set
• Support runtime image pull policy configuration
• Remove deprecated --force-pull flag
• Retry on image pull failures
• Increase the log level threshold of some log messages
• Redact credentials from proxy values before logging them
• Binaries are now built fully static
• Release binaries are now build with debug symbols stripped for smaller size
• Share a single docker-engine client instance to reduce go routine creation
• Ensure docker client related go routines are properly terminated
• Fixes to the s2i examples
• Pull image immediately before use to reduce timing window in which the image is removed after being pulled

• logging cleanup
• remove timeout enforcement on image commit
• fix handling of image pull policy for rebuild operations
• do not force remove containers, kill them first and then remove them
• use "." instead of "source" to run scripts as it is more portable
• fix edge case where internal scripts could get left in the application image
• use image metadata, not container metadata, when probing images for default user information
• support volume mounting flags (e.g. selinux :z) when using volume arguments to builds

• Invoke callback URL if build fails (align with documentation)
• Fixed potential hang conditions during build operations
• Cleaned up example implementations
• Handle empty docker auth configurations cleanly
• Streamline tar operations to avoid writing temporary directories
• Remove race condition in docker api interaction

• Remove Kubernetes docker api dependencies in preference to docker-engine client apis
• Fixed handling of image sha ids for pulling/inspecting images
• Tolerate arbitrary numbers of path segments in docker image specifications
• Fixed some timing issues in handling of tar streams
• Improved compatibility with non-native Docker environments (mac, windows, remote docker daemons)
• Fixed regression in handling of git submodules

• Warn user if they are operating on an empty git repo due to uncommitted local files
• Log stderr output from assemble scripts as info to avoid scary output from things like npm that send all output to stderr
• When overriding the entrypoint, use /usr/bin/env instead of /bin/env and only override the entrypoint if the image includes a default entrypoing
• Fix line number reporting from glog output
• Use correct auth credentials when pulling a runtime image for an extended build
• Switch to docker/docker-client and k8s/engine-api from fsouza/go-docker-client
• Fix intermittent hang when performing assemble/commit operations
• Increase timeout when waiting on the docker daemon
• Rebuild behavior was broken due to accessing the wrong image for label metadata

• Properly handle runtime-assemble scripts that exist inside the runtime image
• Fix permission issues with secret injection
• Fix permission denied during temporary directory deletion on Windows
• Override container entrypoint to "/bin/env" during assembly process to avoid conflicts w/ image entrypoints

The most notable change in this release is the availability of extended builds which are documented here: https://github.com/openshift/source-to-image/blob/master/docs/runtime_image.md

Other updates/fixes:

• Code cleanup in signal handling logic
• Cleanup image labels
• Reworked logging logic to provide better default logging output
• Fix symlink handling logic in tar stream processing
• Explicitly name containers created by s2i during building
• Fix handling of #ref suffixes on local filesystem git paths
• Replaced broken --recursive flag with working --ignore-submodules flag (defaults to false)
• Updated fsouza/go-dockerclient dependency to latest version, fixing some docker config.json parsing bugs

• Fix up test script generated by s2i create

• Allow -e (environment) flag to be passed multiple times
• Revert entrypoint setting behavior due to regression introduced
• Support bind mounts during build process
• Better error reporting on image commit failures

• Fix source path in nginx example assemble script
• Handle user:group specification in builder image Dockerfiles (treat as a numeric uid)
• Override the entrypoint instead of only the command when launching containers for assemble/etc