docs: release notes for the v15.0.0-rc.0 release

dgp1130 · dgp1130 · commit 850827216c67 · 2022-10-20T02:41:36.000-07:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,3 +1,9 @@
+<a name="15.0.0-rc.0"></a>
+
+# 15.0.0-rc.0 (2022-10-20)
+
+<!-- CHANGELOG SPLIT MARKER -->
+
 <a name="15.0.0-next.6"></a>
 
 # 15.0.0-next.6 (2022-10-14)
