wip

Author: SethTisue

2.13.16.md

@@ -6,7 +6,7 @@ The following changes are highlights of this release:
 
 ### Breaking change
 
-This is a bugfix, but we're calling special attention to it since it seems especially plausible that existing code might (perhaps inadvertently) be relying on the old behavior:
+This is a bugfix, but be aware that existing code might, perhaps inadvertently, be relying on the old behavior:
 
 * On the empty string, `.tail` and `.init` now throw (instead of returning the empty string) ([#10851](https://github.com/scala/scala/pull/10851) by [@sh0hei](https://github.com/sh0hei))
 
@@ -17,9 +17,9 @@ This is a bugfix, but we're calling special attention to it since it seems espec
 
 ### REPL
 
-* REPL: JLine 3.27.1 (was .0) ([#10899](https://github.com/scala/scala/pull/10899))
-* REPL: JLine: stop using deprecated JNA ([#10898](https://github.com/scala/scala/pull/10898))
-* REPL: JLine 3.27.0 (was 3.26.3) ([#10882](https://github.com/scala/scala/pull/10882))
+The following upgrades hopefully won't be noticed, but, REPL users on Windows take note:
+
+* REPL: JLine 3.27.1 (was 3.26.3) and on Windows use JNA not JNI ([#10899](https://github.com/scala/scala/pull/10899), [#10898](https://github.com/scala/scala/pull/10898), [#10882](https://github.com/scala/scala/pull/10882))
 
 ### Align with Scala 3
 
@@ -32,7 +32,9 @@ This is a bugfix, but we're calling special attention to it since it seems espec
 ### Collections
 
 * Do not use `rangeHash` when `rangeDiff` is 0 ([#10912](https://github.com/scala/scala/pull/10912) by [@Friendseeker](https://github.com/Friendseeker))
-* Deprecate mutable.AnyRefMap ([#10862](https://github.com/scala/scala/pull/10862) by [@wangyum](https://github.com/wangyum))
+  * This may affect fragile code relying on ordering of hash-based collections
+* Deprecate `collection.mutable.AnyRefMap` ([#10862](https://github.com/scala/scala/pull/10862) by [@wangyum](https://github.com/wangyum))
+  * It no longer has any performance advantage over `collection.mutable.HashMap`
 
 ### More changes