Update CHANGELOG.md

Author: nat-henderson

CHANGELOG.md

@@ -20,7 +20,8 @@ BUG FIXES:
 * storage: allow all role-entity pairs to be unordered [GH-1787]
 * compute: allow switching from a daily `ubuntu-minimal` build to `ubuntu-minimal-lts` instead of only `ubuntu`. [GH-1870]
 * kms: allow project ids with colons [GH-1865]
-* compute: allow project iam policy import with a resource that doesn't match provider project. [GH-1875].
+* compute: allow project iam policy import with a resource that doesn't match provider project. [GH-1875]
+* compute: Ensure regional container clusters update correctly.  [GH-1887]
 
 ## 1.16.2 (July 18, 2018)