chore(main): release 5.7.0

Author: github-actions[bot]

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "5.6.0"
+  ".": "5.7.0"
 }

CHANGELOG.md

@@ -1,5 +1,37 @@
 # Changelog
 
+## [5.7.0](https://github.com/adcontextprotocol/adcp-client-python/compare/v5.6.0...v5.7.0) (2026-05-21)
+
+
+### Features
+
+* **adagents:** fetch_agent_authorizations_from_directory for AAO inverse lookup ([#769](https://github.com/adcontextprotocol/adcp-client-python/issues/769)) ([1c4e57d](https://github.com/adcontextprotocol/adcp-client-python/commit/1c4e57d47ee774b0be8f77540df1b3b60953a175))
+* **adagents:** publisher_domains compact form, revoked_publisher_domains, streaming fetch caps (closes [#729](https://github.com/adcontextprotocol/adcp-client-python/issues/729)) ([#753](https://github.com/adcontextprotocol/adcp-client-python/issues/753)) ([352d1bb](https://github.com/adcontextprotocol/adcp-client-python/commit/352d1bb6719cfd20bf4a703d1d6bd0d1077a0c47))
+* **decisioning:** emit AGENT_SUSPENDED / AGENT_BLOCKED dedicated codes (closes [#409](https://github.com/adcontextprotocol/adcp-client-python/issues/409)) ([#748](https://github.com/adcontextprotocol/adcp-client-python/issues/748)) ([12f8ffe](https://github.com/adcontextprotocol/adcp-client-python/commit/12f8ffe7fa4318affeb2ad728296db4ac88a452b))
+* **decisioning:** wire create_media_buy_store into PlatformHandler dispatch (closes [#462](https://github.com/adcontextprotocol/adcp-client-python/issues/462)) ([#773](https://github.com/adcontextprotocol/adcp-client-python/issues/773)) ([062c6f0](https://github.com/adcontextprotocol/adcp-client-python/commit/062c6f03e34dd47f818251c9b0382d3a7537b5dc))
+* **preview:** opt-in v3.1.0-beta.1 client surface ([#4761](https://github.com/adcontextprotocol/adcp-client-python/issues/4761), [#4762](https://github.com/adcontextprotocol/adcp-client-python/issues/4762), [#4763](https://github.com/adcontextprotocol/adcp-client-python/issues/4763)) ([#747](https://github.com/adcontextprotocol/adcp-client-python/issues/747)) ([35fdd47](https://github.com/adcontextprotocol/adcp-client-python/commit/35fdd47f9a3319b4325a8dc3597ab6a1a4dfc74f))
+* **signing:** BrandAuthorizationResolver (Tier 3, [#350](https://github.com/adcontextprotocol/adcp-client-python/issues/350) stages 1-3) ([#770](https://github.com/adcontextprotocol/adcp-client-python/issues/770)) ([9028a88](https://github.com/adcontextprotocol/adcp-client-python/commit/9028a880adbd1b16b5fbc67f8b0c58f124f0add1))
+* **translation:** list known keys in TranslationMap KeyError ([#768](https://github.com/adcontextprotocol/adcp-client-python/issues/768)) ([7545424](https://github.com/adcontextprotocol/adcp-client-python/commit/75454245f1752d232fa7e52a38c8f201e9cbd3fe))
+* **types:** auto-enforce publisher-selector XOR at Pydantic parse time (closes [#759](https://github.com/adcontextprotocol/adcp-client-python/issues/759)) ([#761](https://github.com/adcontextprotocol/adcp-client-python/issues/761)) ([e973864](https://github.com/adcontextprotocol/adcp-client-python/commit/e9738644b2016f57ebd55345fc7cc06775aa5a03))
+* **validation:** validate_publisher_properties_item accepts Pydantic models ([#756](https://github.com/adcontextprotocol/adcp-client-python/issues/756)) ([01c6491](https://github.com/adcontextprotocol/adcp-client-python/commit/01c649119b3af5b8d39ce2e018559a01a6e96540))
+
+
+### Bug Fixes
+
+* **adagents:** disable follow_redirects on ads.txt MANAGERDOMAIN fetch ([#754](https://github.com/adcontextprotocol/adcp-client-python/issues/754)) ([76a679f](https://github.com/adcontextprotocol/adcp-client-python/commit/76a679fdf2f9aa7fd3d1ccfe36340e9750a95d15))
+* **adagents:** resolve-and-validate gate against DNS-based SSRF ([#757](https://github.com/adcontextprotocol/adcp-client-python/issues/757), partial) ([#760](https://github.com/adcontextprotocol/adcp-client-python/issues/760)) ([969f373](https://github.com/adcontextprotocol/adcp-client-python/commit/969f373873cd187bc08e542122c71bd76a4072a2))
+* **decisioning:** timing-oracle defense on PERMISSION_DENIED branches ([#772](https://github.com/adcontextprotocol/adcp-client-python/issues/772)) ([#774](https://github.com/adcontextprotocol/adcp-client-python/issues/774)) ([c23c9d5](https://github.com/adcontextprotocol/adcp-client-python/commit/c23c9d524ed6ba390cce0ad224d809408160a8ef))
+
+
+### Reverts
+
+* **preview:** remove opt-in v3.1 preview surface ([#747](https://github.com/adcontextprotocol/adcp-client-python/issues/747)) ([#755](https://github.com/adcontextprotocol/adcp-client-python/issues/755)) ([6947870](https://github.com/adcontextprotocol/adcp-client-python/commit/6947870bb2d3a5746ab174b3dee747a50e9c63fc))
+
+
+### Documentation
+
+* **agents:** behaviour → behavior (Argus smoke test) ([#766](https://github.com/adcontextprotocol/adcp-client-python/issues/766)) ([e7c0815](https://github.com/adcontextprotocol/adcp-client-python/commit/e7c0815595f9839f065323f9e90f087b71773d5b))
+
 ## [5.6.0](https://github.com/adcontextprotocol/adcp-client-python/compare/v5.5.0...v5.6.0) (2026-05-19)
 
 

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "adcp"
-version = "5.6.0"
+version = "5.7.0"
 description = "Official Python client for the Ad Context Protocol (AdCP)"
 authors = [
     {name = "AdCP Community", email = "maintainers@adcontextprotocol.org"}