diff --git a/doc/release-notes.md b/doc/release-notes.md
--- a/doc/release-notes.md
+++ b/doc/release-notes.md
@@ -5,3 +5,6 @@
   <https://download.bitcoinabc.org/0.25.3/>
 
 This release includes the following features and fixes:
+- The blockfilterindex can now be maintained when using prune, allowing
+  to run a node with low storage requirements while serving BIP158 compact
+  block filters to clients.