scala/scala
### [`v2.11.12`](https://togithub.com/scala/scala/releases/v2.11.12)
[Compare Source](https://togithub.com/scala/scala/compare/v2.11.11...v2.11.12)
Scala 2.11.12 is a maintenance release to allow running Scala 2.11 tooling on Java 9. [Five pending backports](https://togithub.com/scala/scala/pulls?q=milestone%3A2.11.12+is%3Amerged) were merged.
This release addresses ([#6108](https://togithub.com/scala/scala/issues/6108)) a [**privilege escalation vulnerability**](http://scala-lang.org/news/security-update-nov17.html) that was identified in the Scala compilation daemon _CVE-2017-15288_.
We strongly encourage you to upgrade to the latest stable version of Scala 2.12.x, as the 2.11.x series is no longer actively maintained.
There is a [known bug on Java 9 involving the repl](https://togithub.com/scala/bug/issues/10603): the workaround is to launch it as `scala -nobootcp`.
More general information about the Scala 2.11 series is available in the [release notes for Scala 2.11.1](https://togithub.com/scala/scala/releases/v2.11.1).
Thanks to [Lightbend](https://www.lightbend.com/scala) for their continued sponsorship of the Scala core team’s efforts. Lightbend offers [commercial support](https://www.lightbend.com/lightbend-platform-subscription) for Scala.
### [`v2.11.11`](https://togithub.com/scala/scala/releases/v2.11.11)
[Compare Source](https://togithub.com/scala/scala/compare/v2.11.10...v2.11.11)
The 2.11.11 release concludes the 2.11.x series, with no further releases planned. Please consider upgrading to 2.12!
**Do not use 2.11.9 or 2.11.10**, which introduced significant regressions (see below). This also means this series [goes to eleven](https://www.youtube.com/watch?v=KOO5S4vxi0o). (No further, though.)
#### Changes
[Significant changes](https://togithub.com/scala/scala/pulls?q=is%3Amerged%20milestone%3A2.11.11%20label%3Arelease-notes) since 2.11.8 include:
- [#5730](https://togithub.com/scala/scala/issues/5730), [#5846](https://togithub.com/scala/scala/issues/5846) Allow custom `apply` and `unapply` methods in case class companions. Also allows case class constructors and apply methods to be private. (In 2.11.11, `-Xsource:2.12` is needed to enable these changes. In [Scala 2.12.2](https://togithub.com/scala/scala/releases/tag/v2.12.2), they are on by default.)
- [#5343](https://togithub.com/scala/scala/issues/5343) Add support for higher order unification under `-Ypartial-unification` (SI-2712)
- [#5341](https://togithub.com/scala/scala/issues/5341) Fix for higher-kinded GADT refinement
- [#5061](https://togithub.com/scala/scala/issues/5061) JMH-based benchmark framework for contributors
- [#5026](https://togithub.com/scala/scala/issues/5026) Upgrade to newer scala-xml ([1.0.5](https://togithub.com/scala/scala-xml/releases/v1.0.5))
2.11.11 resolves regressions introduced in 2.11.9 and 2.11.10: [#5730](https://togithub.com/scala/scala/issues/5730) (fixed by [#5828](https://togithub.com/scala/scala/issues/5828) and [#5846](https://togithub.com/scala/scala/issues/5846)), [#5664](https://togithub.com/scala/scala/issues/5664) (fixed by [#5821](https://togithub.com/scala/scala/issues/5821)). Special thanks to [@xuwei-k](https://togithub.com/xuwei-k) and [@sjrd](https://togithub.com/sjrd) for reporting and helping diagnose these.
For more information, check out [all closed bugs](https://togithub.com/scala/bug/issues?utf8=%E2%9C%93&q=is%3Aclosed%20milestone%3A2.11.11) and [merged PRs](https://togithub.com/scala/scala/pulls?q=is%3Amerged%20milestone%3A2.11.11).
As usual for minor releases, Scala 2.11.11 is binary compatible with the whole Scala 2.11 series (with the exception of 2.11.9, which should not be used to publish artifacts, see [#5821](https://togithub.com/scala/scala/issues/5821)).
To share your feedback on this release, please use our new GitHub-based [bug tracker](https://togithub.com/scala/bug) and Discourse-based [contributors forum](https://contributors.scala-lang.org).
#### Contributors
A big thank you to everyone who's helped improve Scala by reporting bugs, improving our documentation, spreading kindness in discussions around Scala, and submitting and reviewing pull requests! You are all magnificent.
This release was brought to you by 33 contributors, according to `git shortlog -sn --no-merges v2.11.8..v2.11.11`. Thank you Adriaan Moors, A. P. Marki, Jason Zaugg, Seth Tisue, Lukas Rytz, Performant Data LLC, Stefan Zeiger, Pap Lőrinc, Iulian Dragos, Rory Graves, Miles Sabin, Martijn Hoekstra, Mike Skells, Sébastien Doeraene, Dale Wijnand, Raphael Jolly, ptrcarta, Łukasz Gieroń, Carsten Varming, CodingTwinky, Jasper-M, Johannes Rudolph, Krzysztof Romanowski, Martynas Mickevičius, Masaru Nomura, Nicolas Stucki, Oscar Boykin, Paul Kernfeld, Philippus Baalman, Tobias Schlatter, Viktor Klang, af, and jvican!
#### Scala 2.11 Notes
The [release notes for Scala 2.11.0](https://togithub.com/scala/scala/releases/v2.11.0) have important information applicable to the whole 2.11 series.
#### Obtaining Scala
Scala releases are available through a variety of channels, including (but not limited to):
- Bump the `scalaVersion` setting in your sbt-based project
- Download a distribution from [scala-lang.org](http://scala-lang.org/download/2.11.11.html)
- Obtain JARs via [Maven Central](http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22org.scala-lang%22%20AND%20v%3A%222.11.11%22)
### [`v2.11.10`](https://togithub.com/scala/scala/releases/v2.11.10)
[Compare Source](https://togithub.com/scala/scala/compare/v2.11.9...v2.11.10)
Not suitable for use due to a regression caused by [#5730](https://togithub.com/scala/scala/issues/5730), fixed in 2.11.11 by [#5846](https://togithub.com/scala/scala/issues/5846).
### [`v2.11.9`](https://togithub.com/scala/scala/releases/v2.11.9)
This release contains a binary incompatible change introduce by [#5664](https://togithub.com/scala/scala/issues/5664) and fixed by the reversion in [#5821](https://togithub.com/scala/scala/issues/5821), which is available in **2.11.11** (yes, 2.11.10 was also flawed).
Renovate configuration
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:vertical_traffic_light: Automerge: Disabled by config. Please merge this manually once you are satisfied.
:recycle: Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.
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This PR contains the following updates:
2.11.8->2.11.12Release Notes
scala/scala
### [`v2.11.12`](https://togithub.com/scala/scala/releases/v2.11.12) [Compare Source](https://togithub.com/scala/scala/compare/v2.11.11...v2.11.12) Scala 2.11.12 is a maintenance release to allow running Scala 2.11 tooling on Java 9. [Five pending backports](https://togithub.com/scala/scala/pulls?q=milestone%3A2.11.12+is%3Amerged) were merged. This release addresses ([#6108](https://togithub.com/scala/scala/issues/6108)) a [**privilege escalation vulnerability**](http://scala-lang.org/news/security-update-nov17.html) that was identified in the Scala compilation daemon _CVE-2017-15288_. We strongly encourage you to upgrade to the latest stable version of Scala 2.12.x, as the 2.11.x series is no longer actively maintained. There is a [known bug on Java 9 involving the repl](https://togithub.com/scala/bug/issues/10603): the workaround is to launch it as `scala -nobootcp`. More general information about the Scala 2.11 series is available in the [release notes for Scala 2.11.1](https://togithub.com/scala/scala/releases/v2.11.1). Thanks to [Lightbend](https://www.lightbend.com/scala) for their continued sponsorship of the Scala core team’s efforts. Lightbend offers [commercial support](https://www.lightbend.com/lightbend-platform-subscription) for Scala. ### [`v2.11.11`](https://togithub.com/scala/scala/releases/v2.11.11) [Compare Source](https://togithub.com/scala/scala/compare/v2.11.10...v2.11.11) The 2.11.11 release concludes the 2.11.x series, with no further releases planned. Please consider upgrading to 2.12! **Do not use 2.11.9 or 2.11.10**, which introduced significant regressions (see below). This also means this series [goes to eleven](https://www.youtube.com/watch?v=KOO5S4vxi0o). (No further, though.) #### Changes [Significant changes](https://togithub.com/scala/scala/pulls?q=is%3Amerged%20milestone%3A2.11.11%20label%3Arelease-notes) since 2.11.8 include: - [#5730](https://togithub.com/scala/scala/issues/5730), [#5846](https://togithub.com/scala/scala/issues/5846) Allow custom `apply` and `unapply` methods in case class companions. Also allows case class constructors and apply methods to be private. (In 2.11.11, `-Xsource:2.12` is needed to enable these changes. In [Scala 2.12.2](https://togithub.com/scala/scala/releases/tag/v2.12.2), they are on by default.) - [#5343](https://togithub.com/scala/scala/issues/5343) Add support for higher order unification under `-Ypartial-unification` (SI-2712) - [#5341](https://togithub.com/scala/scala/issues/5341) Fix for higher-kinded GADT refinement - [#5061](https://togithub.com/scala/scala/issues/5061) JMH-based benchmark framework for contributors - [#5026](https://togithub.com/scala/scala/issues/5026) Upgrade to newer scala-xml ([1.0.5](https://togithub.com/scala/scala-xml/releases/v1.0.5)) 2.11.11 resolves regressions introduced in 2.11.9 and 2.11.10: [#5730](https://togithub.com/scala/scala/issues/5730) (fixed by [#5828](https://togithub.com/scala/scala/issues/5828) and [#5846](https://togithub.com/scala/scala/issues/5846)), [#5664](https://togithub.com/scala/scala/issues/5664) (fixed by [#5821](https://togithub.com/scala/scala/issues/5821)). Special thanks to [@xuwei-k](https://togithub.com/xuwei-k) and [@sjrd](https://togithub.com/sjrd) for reporting and helping diagnose these. For more information, check out [all closed bugs](https://togithub.com/scala/bug/issues?utf8=%E2%9C%93&q=is%3Aclosed%20milestone%3A2.11.11) and [merged PRs](https://togithub.com/scala/scala/pulls?q=is%3Amerged%20milestone%3A2.11.11). As usual for minor releases, Scala 2.11.11 is binary compatible with the whole Scala 2.11 series (with the exception of 2.11.9, which should not be used to publish artifacts, see [#5821](https://togithub.com/scala/scala/issues/5821)). To share your feedback on this release, please use our new GitHub-based [bug tracker](https://togithub.com/scala/bug) and Discourse-based [contributors forum](https://contributors.scala-lang.org). #### Contributors A big thank you to everyone who's helped improve Scala by reporting bugs, improving our documentation, spreading kindness in discussions around Scala, and submitting and reviewing pull requests! You are all magnificent. This release was brought to you by 33 contributors, according to `git shortlog -sn --no-merges v2.11.8..v2.11.11`. Thank you Adriaan Moors, A. P. Marki, Jason Zaugg, Seth Tisue, Lukas Rytz, Performant Data LLC, Stefan Zeiger, Pap Lőrinc, Iulian Dragos, Rory Graves, Miles Sabin, Martijn Hoekstra, Mike Skells, Sébastien Doeraene, Dale Wijnand, Raphael Jolly, ptrcarta, Łukasz Gieroń, Carsten Varming, CodingTwinky, Jasper-M, Johannes Rudolph, Krzysztof Romanowski, Martynas Mickevičius, Masaru Nomura, Nicolas Stucki, Oscar Boykin, Paul Kernfeld, Philippus Baalman, Tobias Schlatter, Viktor Klang, af, and jvican! #### Scala 2.11 Notes The [release notes for Scala 2.11.0](https://togithub.com/scala/scala/releases/v2.11.0) have important information applicable to the whole 2.11 series. #### Obtaining Scala Scala releases are available through a variety of channels, including (but not limited to): - Bump the `scalaVersion` setting in your sbt-based project - Download a distribution from [scala-lang.org](http://scala-lang.org/download/2.11.11.html) - Obtain JARs via [Maven Central](http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22org.scala-lang%22%20AND%20v%3A%222.11.11%22) ### [`v2.11.10`](https://togithub.com/scala/scala/releases/v2.11.10) [Compare Source](https://togithub.com/scala/scala/compare/v2.11.9...v2.11.10) Not suitable for use due to a regression caused by [#5730](https://togithub.com/scala/scala/issues/5730), fixed in 2.11.11 by [#5846](https://togithub.com/scala/scala/issues/5846). ### [`v2.11.9`](https://togithub.com/scala/scala/releases/v2.11.9) This release contains a binary incompatible change introduce by [#5664](https://togithub.com/scala/scala/issues/5664) and fixed by the reversion in [#5821](https://togithub.com/scala/scala/issues/5821), which is available in **2.11.11** (yes, 2.11.10 was also flawed).Renovate configuration
:date: Schedule: At any time (no schedule defined).
:vertical_traffic_light: Automerge: Disabled by config. Please merge this manually once you are satisfied.
:recycle: Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.
:no_bell: Ignore: Close this PR and you won't be reminded about this update again.
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