chore(main): release 0.90.0 (#1302)

🤖 I have created a release *beep* *boop*
---


##
[0.90.0](https://github.com/agentclientprotocol/claude-agent-acp/compare/v0.89.1...v0.90.0)
(2026-10-13)


### Features

* accept IDE session hooks without dropping model settings
([#1265](https://github.com/agentclientprotocol/claude-agent-acp/issues/1265))
([fe8b69e](fe8b69edd4))
* **deps:** Bump actions/setup-node from 7.0.0 to 7.1.0
([#1329](https://github.com/agentclientprotocol/claude-agent-acp/issues/1329))
([c6510c2](c6510c27c1))
* keep a subagent's session across SendMessage resumes for subagents RFD
clients
([#1321](https://github.com/agentclientprotocol/claude-agent-acp/issues/1321))
([bd06804](bd06804b67))
* replay each subagent under its live session id for subagents RFD
clients
([#1328](https://github.com/agentclientprotocol/claude-agent-acp/issues/1328))
([21eef57](21eef57655))
* report a subagent as requires_action while its request is open for
subagents RFD clients
([#1322](https://github.com/agentclientprotocol/claude-agent-acp/issues/1322))
([252126f](252126f616))
* report subagents as the subagents RFD defines, for clients that are
not AIR
([#1320](https://github.com/agentclientprotocol/claude-agent-acp/issues/1320))
([5758ac8](5758ac84a4))


### Bug Fixes

* close the open tool calls of a held or settling turn that a cancel
ends
([#1221](https://github.com/agentclientprotocol/claude-agent-acp/issues/1221))
([32c23db](32c23db06d))
* display active Central helpers as JetBrains Air Gateway
([#1266](https://github.com/agentclientprotocol/claude-agent-acp/issues/1266))
([d6c3717](d6c371704f))
* drop streamed output of prompts a cancel abandoned
([#1313](https://github.com/agentclientprotocol/claude-agent-acp/issues/1313))
([1137df3](1137df33aa))
* end a cancelled turn at its interrupted result and deliver Claude
Code's follow-up after a cancel
([#1309](https://github.com/agentclientprotocol/claude-agent-acp/issues/1309))
([b007ac7](b007ac7c45))
* end the tool calls of a cancelled turn before it reports the cancel
([#1327](https://github.com/agentclientprotocol/claude-agent-acp/issues/1327))
([53df1c7](53df1c7b22))
* keep the terminal of a command in the background running until its
task ends
([#1312](https://github.com/agentclientprotocol/claude-agent-acp/issues/1312))
([d074558](d074558e4a))
* report a command whose result says interrupted as cancelled on the
experimental ACP v2 surface
([#1301](https://github.com/agentclientprotocol/claude-agent-acp/issues/1301))
([b3bed2f](b3bed2f763))
* route a subagent's PostToolUse hook update to its child session
([#1324](https://github.com/agentclientprotocol/claude-agent-acp/issues/1324))
([4615a91](4615a9141c))
* start a forked session so the client can prompt it at once
([#1317](https://github.com/agentclientprotocol/claude-agent-acp/issues/1317))
([383bc7d](383bc7dcf0))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

Co-authored-by: acp-release-bot[bot] <246668977+acp-release-bot[bot]@users.noreply.github.com>

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "0.89.1"
+  ".": "0.90.0"
 }