Docker Beta Release Notes: Beta 29 to Beta 26

**Bug fixes and minor changes** - HyperKit: code cleanup and minor fixes - VPNKit: improvements to DNS handling - Improvements to Logging and Diagnostics - osxfs: switched to `libev/kqueue` to improve latency ### Beta 29.3 Release Notes (2016-11-02 1.12.3-beta29.3) **Upgrades** - Docker Compose 1.9.0-rc2 - `osxfs`: Fixed a simultaneous volume mount race which can result in a crash ### Beta 29.2 Release Notes (2016-10-27 1.12.2-beta29.2) **Hotfixes** - Upgrade to Docker 1.12.3 ### Beta 29.1 Release Notes (2016-10-26 1.12.1-beta29.1) **Hotfixes** - Fixed missing `/dev/pty/ptmx` ### Beta 29 Release Notes (2016-10-25 1.12.3-rc1-beta29) **New** - Overlay2 is now the default storage driver. You must do a factory reset for overlay2 to be automatically used. (#5545) **Upgrades** - Docker 1.12.3-rc1 - Linux kernel 4.4.27 **Bug fixes and minor changes** - Fixed an issue where the whale animation during setting change was inconsistent - Fixed an issue where some windows stayed hidden behind another app - Fixed application of system or custom proxy settings over container restart - Increased default ulimit for memlock (fixes [docker/for-mac#801](https://github.com/docker/for-mac/issues/801) ) - Fixed an issue where the Docker status would continue to be yellow/animated after the VM had started correctly - osxfs: fixed the prohibition of chown on read-only or mode 0 files (fixes [docker/for-mac#117](https://github.com/docker/for-mac/issues/117), [docker/for-mac#263](https://github.com/docker/for-mac/issues/263), [docker/for-mac#633](https://github.com/docker/for-mac/issues/633) ) ### Beta 28 Release Notes (2016-10-13 1.12.2-rc3-beta28) **Upgrades** - Docker 1.12.2 - Kernel 4.4.24 - Notary 0.4.2 **Bug fixes and minor changes** - Fixed an issue where Docker for Mac was incorrectly reported as updated - osxfs: Fixed race condition causing some reads to run forever - Channel is now displayed in About box - Crash reports are sent over Bugsnag rather than HockeyApp ### Beta 27 Release Notes (2016-09-28 1.12.2-rc1-beta27) **Upgrades** * Docker 1.12.2-rc1 * Docker Machine 0.8.2 * Docker compose 1.8.1 * Kernel vsock driver v7 * Kernel 4.4.21 * AUFS 20160912 **Bug fixes and minor changes** * Fixed an issue where some windows did not claim focus correctly * Added UI when switching channel to prevent user losing containers and settings * Check disk capacity before Toolbox import * Import certificates in `etc/ssl/certs/ca-certificates.crt` * DNS: reduce the number of UDP sockets consumed on the host * VPNkit: improve the connection-limiting code to avoid running out of sockets on the host * UDP: handle diagrams bigger than 2035, up to the configured macOS kernel limit * UDP: made the forwarding more robust; now, drop packets and continue rather than stopping * disk: made the "flush" behaviour configurable for database-like workloads. This works around a performance regression in `v1.12.1`. ### Beta 26 Release Notes (2016-09-14 1.12.1-beta26) **New** * Improved support for macOS 10.12 Sierra **Upgrades** * Linux kernel 4.4.20 * AUFS 20160905 **Bug fixes and minor changes** * Fixed communications glitch when UI talks to `com.docker.vmnetd`. Fixes [docker/for-mac#90](https://github.com/docker/for-mac/issues/90) * UI fix for macOs 10.12 * Windows open on top of full screen app are available in all spaces * Reporting a bug, while not previously logged into GitHub now works * When a diagnostic upload fails, the error is properly reported * `docker-diagnose` displays and records the time the diagnosis was captured * Ports are allowed to bind to host addresses other than `0.0.0.0` and `127.0.0.1`. Fixes issue reported in [docker/for-mac#68](https://github.com/docker/for-mac/issues/68). * We no longer compute the container folder in `com.docker.vmnetd`. Fixes [docker/for-mac#47](https://github.com/docker/for-mac/issues/47). **Known Issues** * `Docker.app` sometimes uses 200% CPU after macOS wakes up from sleep mode. The

These release notes cover Docker Beta versions from Beta 29 to Beta 26. Key updates include upgrading Docker, Linux Kernel, Docker Machine, Docker Compose, and Notary versions. The default storage driver is now Overlay2, but requires a factory reset. Noteworthy bug fixes address issues such as inconsistent whale animation, hidden windows, proxy settings, ulimit for memlock, Docker status indication, `chown` prohibitions on read-only files, Docker update reporting, race conditions, channel display, disk capacity checks, certificate imports, DNS handling, VPNKit connection limiting, UDP packet forwarding, and disk "flush" behavior configuration. Sierra support improves.