diff --git a/doc/release-notes.md b/doc/release-notes.md
index a29094b51..7355bcfc6 100644
--- a/doc/release-notes.md
+++ b/doc/release-notes.md
@@ -4,3 +4,9 @@ release-notes at release time)
 Notable changes
 ===============
 
+UTXO memory accounting
+----------------------
+
+The default -dbcache has been changed in this release to 450MiB. Users can set -dbcache to a higher value (e.g. to keep the UTXO set more fully cached in memory). Users on low-memory systems (such as systems with 1GB or less) should consider specifying a lower value for this parameter.
+
+Additional information relating to running on low-memory systems can be found here: [reducing-memory-usage.md](https://github.com/zcash/zcash/blob/master/doc/reducing-memory-usage.md).