Mention replaceable persistent caches in 2.15.2 release notes
Change-Id: I5f3d1536354648e3092102b6936bcfd97a185518
diff --git a/releases/2.15.md b/releases/2.15.md
index efcc9bb..49d2413 100644
--- a/releases/2.15.md
+++ b/releases/2.15.md
@@ -463,6 +463,13 @@
was comparing user object instances rather than the account ID that
they represented.
+* Allow to replace the default H2 persistent cache with a custom implementation.
+
+ The default H2 persistent cache can be replaced by a module that implements
+ the `CacheImpl` interface.
+
+ An implementation is provided for postgresql.
+
* Various logging improvements.
* Hooks plugin
