Updates for 2.12.4.

Author: milessabin

notes/typelevel-4.md

@@ -1,6 +1,6 @@
 # Typelevel Scala 4
 
-We are pleased to announce the availability of [Typelevel][typelevel] [Scala][tls] 4 for Scala 2.11.11, 2.12.3 and
+We are pleased to announce the availability of [Typelevel][typelevel] [Scala][tls] 4 for Scala 2.11.11, 2.12.4 and
 2.13.0-M2.
 
 ## Typelevel Scala releases
@@ -10,17 +10,17 @@ version number suffix which indicates the Typelevel feature level beyond the bas
 maintain parity of Typelevel features across the Scala compiler versions we support.
 
 The current Typelevel feature level is 4 and it is avaliable as a drop in replacement for Lightbend Scala 2.11.11,
-2.12.3 and 2.13.0-M2.
+2.12.4 and 2.13.0-M2.
 
 Support for Scala 2.10.6 will be considered if sponsors step forward to support the necessary work.
 
 ## Additonal features included in TLS 4
 
-The Typelevel Scala additions to Lightbend Scala 2.11.11, 2.12.3 and 2.13.0-M2 can be found on the branches
-[2.11.11-bin-typelevel-4][2.11.11-bin-typelevel-4], [2.12.3-bin-typelevel-4][2.12.3-bin-typelevel-4] and
+The Typelevel Scala additions to Lightbend Scala 2.11.11, 2.12.4 and 2.13.0-M2 can be found on the branches
+[2.11.11-bin-typelevel-4][2.11.11-bin-typelevel-4], [2.12.4-bin-typelevel-4][2.12.4-bin-typelevel-4] and
 respectively [2.13.0-M2-bin-typelevel-4][2.13.0-M2-bin-typelevel-4] of this repository.
 
-Typelevel Scala 4 offers the features listed below over Lightbend Scala 2.11.11/2.12.3/2.13.0-M2. Following [Typelevel
+Typelevel Scala 4 offers the features listed below over Lightbend Scala 2.11.11/2.12.4/2.13.0-M2. Following [Typelevel
 Scala policy][merge-policy] each one of these exists as a pull request against Lightbend Scala and is being considered
 for merging.
 
@@ -295,7 +295,7 @@ More details on the [PR][pr-trailing-commas].
 
 Requirements for using Typelevel Scala in your existing projects,
 
-+ You must be using Lightbend Scala 2.11.11, 2.12.3 or 2.13.0-M2.
++ You must be using Lightbend Scala 2.11.11, 2.12.4 or 2.13.0-M2.
 + You must be using SBT 0.13.15 or later.
 + Your build should use `scalaOrganization.value` and `CrossVersion.patch` appropriately.
 
@@ -307,15 +307,15 @@ Requirements for using Typelevel Scala in your existing projects,
   ```
   inThisBuild(Seq(
     organization := "com.chuusai",
-    scalaVersion := "2.12.3",
-    crossScalaVersions := Seq("2.10.6", "2.11.11", "2.12.3", "2.13.0-M2")
+    scalaVersion := "2.12.4",
+    crossScalaVersions := Seq("2.10.6", "2.11.11", "2.12.4", "2.13.0-M2")
   ))
   ```
 
 You can now temporarily build with Typelevel Scala by entering,
 
 ```
-> ; set every scalaOrganization := "org.typelevel" ; ++2.12.3-bin-typelevel-4
+> ; set every scalaOrganization := "org.typelevel" ; ++2.12.4-bin-typelevel-4
 ```
 
 on the SBT REPL.
@@ -325,7 +325,7 @@ To switch your project permanently to Typelevel Scala 4 update your `build.sbt`
 ```
 inThisBuild(Seq(
   scalaOrganization := "org.typelevel"
-  scalaVersion := "2.12.3-bin-typelevel-4"
+  scalaVersion := "2.12.4-bin-typelevel-4"
 ))
 ```
 
@@ -349,7 +349,7 @@ of the Lightbend one. You can verify that the settings have been updated correct
 > show scalaOrganization
 [info] org.typelevel
 > show scalaVersion
-[info] 2.12.3-bin-typelevel-4
+[info] 2.12.4-bin-typelevel-4
 ```
 
 [build-tweaks-1]: https://github.com/typelevel/scala/issues/135
@@ -366,15 +366,15 @@ If you are using maven with the `scala-maven-plugin`, set the `<scalaOrganizatio
   <version>3.2.1</version>
   <configuration>
     <scalaOrganization>org.typelevel</scalaOrganization>
-    <scalaVersion>2.12.3-bin-typelevel-4</scalaOrganization>
+    <scalaVersion>2.12.4-bin-typelevel-4</scalaOrganization>
   </configuration>
 </plugin>
 ```
 
 ## Contributors
 
 Typelevel Scala is only possible because of the contributions made to Lightbend Scala &mdash; see the contributors
-section of the LBS Scala 2.12.3 and 2.11.11 [release notes][lbs-2.12.3].
+section of the LBS Scala 2.12.4 and 2.11.11 [release notes][lbs-2.12.4].
 
 We are hugely grateful to the following for their work on the enhancements included in Typelevel Scala 4 and look
 forward to them being included in future Lightbend Scala releases,
@@ -412,13 +412,13 @@ Typelevel Scala in general and to the PRs merged in this release in particular.
 [lbs-gitter]: https://gitter.im/scala/contributors
 [typelevel]: http://typelevel.org/
 [lbs-readme]: https://github.com/scala/scala/blob/2.12.x/README.md
-[2.12.3-bin-typelevel-4]: https://github.com/typelevel/scala/commits/2.12.3-bin-typelevel-4
+[2.12.4-bin-typelevel-4]: https://github.com/typelevel/scala/commits/2.12.4-bin-typelevel-4
 [2.11.11-bin-typelevel-4]: https://github.com/typelevel/scala/commits/2.11.11-bin-typelevel-4
 [2.13.0-M2-bin-typelevel-4]: https://github.com/typelevel/scala/commits/2.13.0-M2-bin-typelevel-4
-[lbs-2.12.3]: https://www.scala-lang.org/news/2.12.3
+[lbs-2.12.4]: https://www.scala-lang.org/news/2.12.4
 [sip-23]: http://docs.scala-lang.org/sips/pending/42.type.html
 [shapeless]: https://github.com/milessabin/shapeless
-[induction-benchmark]: https://github.com/typelevel/scala/blob/2.12.3-bin-typelevel-4/test/induction/inductive-implicits-bench.scala
-[kind-poly-examples]: https://github.com/typelevel/scala/blob/2.12.3-bin-typelevel-4/test/files/pos/kind-poly.scala
-[trailing-comma-examples]: https://github.com/typelevel/scala/blob/2.12.3-bin-typelevel-4/test/files/pos/trailing-commas.scala
+[induction-benchmark]: https://github.com/typelevel/scala/blob/2.12.4-bin-typelevel-4/test/induction/inductive-implicits-bench.scala
+[kind-poly-examples]: https://github.com/typelevel/scala/blob/2.12.4-bin-typelevel-4/test/files/pos/kind-poly.scala
+[trailing-comma-examples]: https://github.com/typelevel/scala/blob/2.12.4-bin-typelevel-4/test/files/pos/trailing-commas.scala
 [typeable]: https://github.com/milessabin/shapeless/commit/820f12c678a7c1bb2bfb98c201db207cc7fc81de