JDK compat page: Scala 3.3.0, JDK 21

Author: SethTisue

_overviews/jdk-compatibility/overview.md

@@ -12,7 +12,7 @@ Sometimes new JVM and JDK (Java Development Kit) versions require us to update S
 
 | JDK version | Minimum Scala versions                                       |
 |:-----------:|:-------------------------------------------------------------|
-| 20          | 3.3.0 (soon), 2.13.11 (soon), 2.12.18 (soon)                 |
+| 20          | 3.3.0, 2.13.11 (soon), 2.12.18 (soon)                        |
 | 19          | 3.2.0, 2.13.9, 2.12.16                                       |
 | 18          | 3.1.3, 2.13.7, 2.12.15                                       |
 | 17 (LTS)    | 3.0.0, 2.13.6, 2.12.15                                       |
@@ -96,23 +96,25 @@ Support for JDK 19 was included in Scala 2.13.9 and 2.12.16.
 
 JDK 20, a non-LTS release, came out in March 2023.
 
+Support for JDK 20 is included in Scala 3.3.0.
+
 Support for JDK 20 has already been merged and is available in
 [nightly builds](https://stackoverflow.com/questions/40622878/how-do-i-tell-sbt-or-scala-cli-to-use-a-nightly-build-of-scala-2-12-or-2-13)
-of Scala 2.12, 2.13, and 3.
+of Scala 2.12 and 2.13.
 
-The support will be included in forthcoming Scala releases: 2.12.18,
-2.13.11, and 3.3.0.  We hope to release these in April 2023, or not
-long after.
+The support will be included in forthcoming Scala releases 2.12.18
+and 2.13.11.  We expect to release these in June 2023.
 
-<!--
 ## JDK 21 compatibility notes
 
-Early access builds of JDK 21, a non-LTS release, are already available.
+Early access builds of JDK 21 are already available. JDK 21 will
+be an LTS release.
 
-Initial support for JDK 20 has been merged and is already available in
-nightly builds of Scala 2.12, 2.13, and 3.  (The support will be
-included in forthcoming Scala releases: 2.12.19, 2.13.12, and 3.3.1.)
--->
+Initial support for JDK 21 has been merged and is already available in
+nightly builds of Scala 2.12, 2.13, and 3.
+
+The support will be included in forthcoming Scala releases: 2.12.18,
+2.13.11, and 3.3.1.
 
 ## GraalVM Native Image compatibility notes