diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index e1486cc..e2cacef 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -7,5 +7,5 @@
   "tmpclient": "0.1.0",
   "targeting": "0.2.0",
   "uid2client": "0.2.0",
-  "adcp/v3": "3.0.0"
+  "adcp/v3": "3.1.0"
 }
diff --git a/adcp/v3/CHANGELOG.md b/adcp/v3/CHANGELOG.md
index 7cfcfc1..54e085f 100644
--- a/adcp/v3/CHANGELOG.md
+++ b/adcp/v3/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [3.1.0](https://github.com/adcontextprotocol/adcp-go/compare/adcp/v3.0.0...adcp/v3.1.0) (2026-08-30)
+
+
+### Features
+
+* **negotiation:** add AdCP 3.2 proposal APIs ([#467](https://github.com/adcontextprotocol/adcp-go/issues/467)) ([a2fcf7d](https://github.com/adcontextprotocol/adcp-go/commit/a2fcf7d552dd5cda0d9d0f4b5e8b7cfc7a85c477))
+
 ## [2.1.0](https://github.com/adcontextprotocol/adcp-go/compare/adcp-v2.0.1...adcp-v2.1.0) (2026-06-18)