Update overview.md

Author: SethTisue

_overviews/jdk-compatibility/overview.md

@@ -40,12 +40,12 @@ For example, Scala 2.12 raised the minimum JVM, for both compiling and running,
 
 Like the 2.12.x series, the Scala 2.13.x series will support Java 8 and higher. (We may bump this to Java 11, but this is unlikely to happen in the 2.x series.)
 
-## JDK 9+ compatibility notes
+## JDK 11 compatibility notes
 
 Although the table above jumps from 8 to 11, JDK 9 and 10 will probably also work wherever 11 does. But unlike 9 and 10, 11 is an LTS release, so 11 is what we actually test on and recommend.
 
-As of Scala 2.12.6 and 2.11.12, **JDK 9+ support is incomplete**. Notably, `scalac` will not enforce the restrictions of the Java Platform Module System, which means that code that typechecks may incur linkage errors at runtime. Scala 2.13.x will eventually provide [rudimentary support](https://github.com/scala/scala/pull/7218) for this, but likely only in nightlies built on Java 11.
+As of Scala 2.12.8 and 2.11.12, **JDK 11 support is incomplete**. Notably, `scalac` will not enforce the restrictions of the Java Platform Module System, which means that code that typechecks may incur linkage errors at runtime. Scala 2.13.x will eventually provide [rudimentary support](https://github.com/scala/scala/pull/7218) for this, but likely only in nightlies built on Java 11.
 
-JDK 9+ support requires minimum sbt version 1.1.0, or 0.13.17 in the 0.13.x series.
+JDK 11 support requires minimum sbt version 1.1.0, or 0.13.17 in the 0.13.x series.
 
-For more information on JDK 9+ compatibility, watch the ["Support JDK 9"](https://github.com/scala/scala-dev/issues/139 "scala/scala-dev #139") issue on GitHub. To help with testing on Java 11, see [scala/scala-dev#559](https://github.com/scala/scala-dev/issues/559).
+For more information on JDK 11 compatibility, watch the ["Support JDK 11"](https://github.com/scala/scala-dev/issues/139 "scala/scala-dev #139") issue on GitHub. To help with testing on Java 11, see [scala/scala-dev#559](https://github.com/scala/scala-dev/issues/559).