chore(main): release 6.7.0

Author: aao-ipr-bot[bot]

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "6.6.0"
+  ".": "6.7.0"
 }

CHANGELOG.md

@@ -1,5 +1,20 @@
 # Changelog
 
+## [6.7.0](https://github.com/adcontextprotocol/adcp-client-python/compare/v6.6.0...v6.7.0) (2026-07-29)
+
+
+### Features
+
+* **protocol:** support AdCP 3.1.8 schemas ([#992](https://github.com/adcontextprotocol/adcp-client-python/issues/992)) ([0efb159](https://github.com/adcontextprotocol/adcp-client-python/commit/0efb1590dd5efaee4f2659a46a5a839b442502c8))
+
+
+### Bug Fixes
+
+* **security:** harden SDK auth transports ([a2610a5](https://github.com/adcontextprotocol/adcp-client-python/commit/a2610a5b4f8e0d0d1d500fc3908be1d6862b0764))
+* **signing:** block CGNAT and 6to4 relay ranges in SSRF validation ([#974](https://github.com/adcontextprotocol/adcp-client-python/issues/974)) ([0207429](https://github.com/adcontextprotocol/adcp-client-python/commit/020742979cabb5e721ab33c41caddb6b9849074a))
+* **signing:** canonicalize both origins in the brand.json jwks gate ([#998](https://github.com/adcontextprotocol/adcp-client-python/issues/998)) ([b7ef1df](https://github.com/adcontextprotocol/adcp-client-python/commit/b7ef1dfcff2bf116e1c18586fd26a497669cdc41))
+* **signing:** idna-normalize hosts in etld+1 binding ([#995](https://github.com/adcontextprotocol/adcp-client-python/issues/995)) ([827e4f4](https://github.com/adcontextprotocol/adcp-client-python/commit/827e4f4e9c259137e92124b0f309233685c43d51)), closes [#988](https://github.com/adcontextprotocol/adcp-client-python/issues/988)
+
 ## [6.6.0](https://github.com/adcontextprotocol/adcp-client-python/compare/v6.5.0...v6.6.0) (2026-07-01)
 
 

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "adcp"
-version = "6.6.0"
+version = "6.7.0"
 description = "Official Python client for the Ad Context Protocol (AdCP)"
 authors = [
     {name = "AdCP Community", email = "maintainers@adcontextprotocol.org"}