Update CHANGELOG for Firestore v1.5.1 (#3820)

wilhuff · web-flow · commit a52356a87a45 · 2019-09-10T20:57:26.000-07:00
diff --git a/Firestore/CHANGELOG.md b/Firestore/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Unreleased
 
+# v1.5.1
+- [fixed] Fixed a memory access error discovered using the sanitizers in Xcode
+  11.
+
 # v1.5.0
 - [changed] Transactions now perform exponential backoff before retrying.
   This means transactions on highly contended documents are more likely to
