diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1565c59b..f10e55b9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,21 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## [12.7.4] - 2026-05-07
+
+Patch release for the Codex mem-search marketplace fix.
+
+Highlights:
+- Restores Codex access to the claude-mem MCP/search plugin by pointing the Codex marketplace at the bundled plugin root.
+- Adds resilient MCP launcher fallbacks for local installs, Codex plugin cache installs, Claude plugin cache installs, and remote marketplace clones.
+- Registers Codex plugin marketplaces during install, enables plugin_hooks, and cleans up legacy AGENTS-based Codex context injection.
+- Includes the Codex session-start hook migration and Codex version-mismatch investigation plan.
+
+Validation:
+- npm run build
+- bun test tests/install-non-tty.test.ts tests/infrastructure/plugin-distribution.test.ts tests/servers/mcp-tool-schemas.test.ts tests/setup-runtime.test.ts tests/hook-command.test.ts
+- Docker smoke with codex-cli 0.128.0 for local install, remote marketplace add/upgrade, and MCP initialize.
+
 ## [12.7.3] - 2026-05-07
 
 Patch release for the reliability fixes merged in PR #2344.