diff --git a/CHANGELOG.md b/CHANGELOG.md
index 07adec0e..daca8d04 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.12.2](https://github.com/agentclientprotocol/agent-client-protocol/compare/v0.12.1...v0.12.2) - 2026-04-23
+
+### Added
+
+- Stabilize session/close ([#1062](https://github.com/agentclientprotocol/agent-client-protocol/pull/1062))
+- Stabilize session/resume ([#1051](https://github.com/agentclientprotocol/agent-client-protocol/pull/1051))
+
 ## [0.12.1](https://github.com/agentclientprotocol/agent-client-protocol/compare/v0.12.0...v0.12.1) - 2026-04-21
 
 ### Other
diff --git a/Cargo.lock b/Cargo.lock
index 9fa861bc..37e7a8d9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,7 +4,7 @@ version = 4
 
 [[package]]
 name = "agent-client-protocol-schema"
-version = "0.12.1"
+version = "0.12.2"
 dependencies = [
  "anyhow",
  "derive_more",
diff --git a/Cargo.toml b/Cargo.toml
index c81465c7..8ca541ca 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "agent-client-protocol-schema"
 authors = ["Zed <hi@zed.dev>"]
-version = "0.12.1"
+version = "0.12.2"
 edition = "2024"
 license = "Apache-2.0"
 description = "A protocol for standardizing communication between code editors and AI coding agents"