diff --git a/.github/release-please/release-please-manifest.json b/.github/release-please/release-please-manifest.json
index b2d16ab93b..a11bce140e 100644
--- a/.github/release-please/release-please-manifest.json
+++ b/.github/release-please/release-please-manifest.json
@@ -4,7 +4,7 @@
   "lib/flattening": "0.1.3",
   "lib/identifier": "0.4.0",
   "otdfctl": "0.31.0",
-  "protocol/go": "0.27.0",
+  "protocol/go": "0.28.0",
   "sdk": "0.17.0",
   "service": "0.14.0"
 }
\ No newline at end of file
diff --git a/protocol/go/CHANGELOG.md b/protocol/go/CHANGELOG.md
index e642b4f1db..e5bbd22682 100644
--- a/protocol/go/CHANGELOG.md
+++ b/protocol/go/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.28.0](https://github.com/opentdf/platform/compare/protocol/go/v0.27.0...protocol/go/v0.28.0) (2026-04-28)
+
+
+### Features
+
+* **sdk:** add shorthand enum constants for policy types ([#3408](https://github.com/opentdf/platform/issues/3408)) ([c6f18cb](https://github.com/opentdf/platform/commit/c6f18cbcacc7fa285d834f504a6ce43b7363295d))
+
 ## [0.27.0](https://github.com/opentdf/platform/compare/protocol/go/v0.26.0...protocol/go/v0.27.0) (2026-04-23)