28th chunk of `content/manuals/desktop/previous-versions/edge-releases-mac.md`
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**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