Merge pull request #1897 from HubSpot/0_22_release_docs

0.22.0 release docs

Docs/releases/0.22.0.md

@@ -0,0 +1,45 @@
+## Changes in `0.22.0`
+
+Check out the [0.22.0 milestone](https://github.com/HubSpot/Singularity/milestone/39?closed=1) to see new features / bugfixes in detail. `0.22.0` represents an [upgrade to mesos `1.6.1`](https://github.com/HubSpot/Singularity/pull/1867). This also includes an upgrade to protobuf 3 and a move to a separate fork of mesos-rxjava. Instuctions for upgrading mesos can be found [here](http://mesos.apache.org/documentation/latest/upgrades/). In internal testing we found communications between old mesos master/upgraded scheduler and vice versa were both backwards compatible back to mesos `1.1.0`.
+
+### New Features
+
+- [1873](https://github.com/HubSpot/Singularity/pull/1873) - Non-http health checks
+
+### Improvements
+
+- [1893](https://github.com/HubSpot/Singularity/pull/1893) - Use a profile to build for postgresql
+- [1894](https://github.com/HubSpot/Singularity/pull/1894) - Add trace logging for header passthrough authenticator
+- [1895](https://github.com/HubSpot/Singularity/pull/1895) - Add option to specify executor cleanup creds in file
+- [1885](https://github.com/HubSpot/Singularity/pull/1885) - Add guava/jdk8 modules to default SingularityClient object mapper
+- [1887](https://github.com/HubSpot/Singularity/pull/1887) - Remove all switch user bits from docker wrapper
+- [1880](https://github.com/HubSpot/Singularity/pull/1880) - Improve ExtendedTaskState readability
+- [1888](https://github.com/HubSpot/Singularity/pull/1888) - Report uploader/downloader metrics by writing to a file.
+- [1891](https://github.com/HubSpot/Singularity/pull/1891) - Add ability to set uploader additional files at deploy level
+- [1849](https://github.com/HubSpot/Singularity/pull/1849) - Slave attribute minimums
+- [1876](https://github.com/HubSpot/Singularity/pull/1876) - Better alerting for task lag
+- [1877](https://github.com/HubSpot/Singularity/pull/1877) - Update alert banner to only show when there's a widespread issue for task lag
+- [1878](https://github.com/HubSpot/Singularity/pull/1878) - Add support for inactive task history filtered by deploy ID
+- [1875](https://github.com/HubSpot/Singularity/pull/1875) - Ability to rotate at a max service log size
+- [1854](https://github.com/HubSpot/Singularity/pull/1854) - Ability to open sandbox files from SingularityUI
+- [1867](https://github.com/HubSpot/Singularity/pull/1867) - Upgrade to mesos 1.6.1 and fork of mesos-rxjava
+- [1869](https://github.com/HubSpot/Singularity/pull/1869) - Faster run now enqueue
+- [1860](https://github.com/HubSpot/Singularity/pull/1860) - Make SingularityUI snappier
+
+### Bug Fixes
+
+- [1882](https://github.com/HubSpot/Singularity/pull/1882) - Be sure to remove expiring bounces when a bounce completes
+- [1847](https://github.com/HubSpot/Singularity/pull/1847) - Ability to set 'shell' in deploy ui
+- [1883](https://github.com/HubSpot/Singularity/pull/1883) - Acquire a request-level lock when persisting deploy history.
+- [1879](https://github.com/HubSpot/Singularity/pull/1879) - Make task history paging less flaky
+- [1881](https://github.com/HubSpot/Singularity/pull/1881) - Don't count pending tasks limited by instance count in task lag 
+- [1874](https://github.com/HubSpot/Singularity/pull/1874) - Additional updates for backpressure handling
+- [1853](https://github.com/HubSpot/Singularity/pull/1853) - Failover when we miss Mesos Master heartbeats.
+- [1868](https://github.com/HubSpot/Singularity/pull/1868) - Email unsubscription bugfix
+- [1866](https://github.com/HubSpot/Singularity/pull/1866) - Clean up logrotate files sooner
+- [1871](https://github.com/HubSpot/Singularity/pull/1871) - Add ability to ignore logrotate hourly output
+- [1863](https://github.com/HubSpot/Singularity/pull/1863) - Grab the request lock when persisting request/deploy history
+
+### Documentation
+
+- [1884](https://github.com/HubSpot/Singularity/pull/1884) - Fix broken docs link

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@@ -10,7 +10,7 @@
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