Version 3.5.0-323.2.beta

Change-Id: I29e09078e7fbea13cc58264ee94cc2ff95000a6d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/377700
Reviewed-by: Sigmund Cherem <sigmund@google.com>
diff --git a/tools/VERSION b/tools/VERSION
index 34d5de1..5adcfc2 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -29,3 +29,5 @@
 PATCH 0
 PRERELEASE 323
 PRERELEASE_PATCH 2
+
+# Reauthoring for stable release.