diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 6b7b74c..da59f99 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.3.0"
+  ".": "0.4.0"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ab2eb3e..75fc422 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.4.0](https://github.com/groundsgg/plugin-agones/compare/v0.3.0...v0.4.0) (2026-05-06)
+
+
+### Features
+
+* **paper:** stay inert when no Agones SDK sidecar is present ([#40](https://github.com/groundsgg/plugin-agones/issues/40)) ([a37cf40](https://github.com/groundsgg/plugin-agones/commit/a37cf4061acd509be62ca618e538643ff8af341c))
+
 ## [0.3.0](https://github.com/groundsgg/plugin-agones/compare/v0.2.1...v0.3.0) (2026-04-26)