diff --git a/.github/.release-please-manifest.json b/.github/.release-please-manifest.json
index 62db4bcff..4751443d0 100644
--- a/.github/.release-please-manifest.json
+++ b/.github/.release-please-manifest.json
@@ -1,6 +1,6 @@
 {
-  ".": "2.65.0",
-  "plugins/compound-engineering": "2.65.0",
+  ".": "2.66.0",
+  "plugins/compound-engineering": "2.66.0",
   "plugins/coding-tutor": "1.2.1",
   ".claude-plugin": "1.0.2",
   ".cursor-plugin": "1.0.1"
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 20ff8a134..f00df26d4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [2.66.0](https://github.com/EveryInc/compound-engineering-plugin/compare/cli-v2.65.0...cli-v2.66.0) (2026-04-15)
+
+
+### Bug Fixes
+
+* **converters:** preserve Codex agent sidecar scripts ([#563](https://github.com/EveryInc/compound-engineering-plugin/issues/563)) ([ee8e402](https://github.com/EveryInc/compound-engineering-plugin/commit/ee8e4028972252620f0dbfdbe1240204d22e6ea1))
+* **converters:** preserve Codex config on no-MCP install ([#564](https://github.com/EveryInc/compound-engineering-plugin/issues/564)) ([ed778e6](https://github.com/EveryInc/compound-engineering-plugin/commit/ed778e62f1e0e8621df94e5d461b20833cff33e2))
+
 ## [2.65.0](https://github.com/EveryInc/compound-engineering-plugin/compare/cli-v2.64.0...cli-v2.65.0) (2026-04-11)
 
 
diff --git a/package.json b/package.json
index 26c2c8356..72b6db459 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@every-env/compound-plugin",
-  "version": "2.65.0",
+  "version": "2.66.0",
   "description": "Official Compound Engineering plugin for Claude Code, Codex, and more",
   "type": "module",
   "private": false,
diff --git a/plugins/compound-engineering/.claude-plugin/plugin.json b/plugins/compound-engineering/.claude-plugin/plugin.json
index d428947eb..95441d955 100644
--- a/plugins/compound-engineering/.claude-plugin/plugin.json
+++ b/plugins/compound-engineering/.claude-plugin/plugin.json
@@ -1,6 +1,6 @@
 {
   "name": "compound-engineering",
-  "version": "2.65.0",
+  "version": "2.66.0",
   "description": "AI-powered development tools for code review, research, design, and workflow automation.",
   "author": {
     "name": "Kieran Klaassen",
diff --git a/plugins/compound-engineering/.cursor-plugin/plugin.json b/plugins/compound-engineering/.cursor-plugin/plugin.json
index 8c129dc7d..658b56def 100644
--- a/plugins/compound-engineering/.cursor-plugin/plugin.json
+++ b/plugins/compound-engineering/.cursor-plugin/plugin.json
@@ -1,7 +1,7 @@
 {
   "name": "compound-engineering",
   "displayName": "Compound Engineering",
-  "version": "2.65.0",
+  "version": "2.66.0",
   "description": "AI-powered development tools for code review, research, design, and workflow automation.",
   "author": {
     "name": "Kieran Klaassen",
diff --git a/plugins/compound-engineering/CHANGELOG.md b/plugins/compound-engineering/CHANGELOG.md
index 18307bc98..2e42141d2 100644
--- a/plugins/compound-engineering/CHANGELOG.md
+++ b/plugins/compound-engineering/CHANGELOG.md
@@ -9,6 +9,24 @@ All notable changes to the compound-engineering plugin will be documented in thi
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.66.0](https://github.com/EveryInc/compound-engineering-plugin/compare/compound-engineering-v2.65.0...compound-engineering-v2.66.0) (2026-04-15)
+
+
+### Features
+
+* **ce-optimize:** Auto-research loop for tuning system prompts / vector clustering / evaluating different code solution / etc ([#446](https://github.com/EveryInc/compound-engineering-plugin/issues/446)) ([8f20aa0](https://github.com/EveryInc/compound-engineering-plugin/commit/8f20aa0406a7cda4ff11da45b971e38681650678))
+* **ce-pr-description:** focused skill for PR description generation ([#561](https://github.com/EveryInc/compound-engineering-plugin/issues/561)) ([8ec6d33](https://github.com/EveryInc/compound-engineering-plugin/commit/8ec6d339fee38cf4306e6586f726486cbae713b0))
+
+
+### Bug Fixes
+
+* **ce-plan:** close escape hatches that let the skill abandon direct invocations ([#554](https://github.com/EveryInc/compound-engineering-plugin/issues/554)) ([e4d5f24](https://github.com/EveryInc/compound-engineering-plugin/commit/e4d5f241bd3945784905a32d7fb7ef9305c621e8))
+* **ce-review:** always fetch base branch to prevent stale merge-base ([#544](https://github.com/EveryInc/compound-engineering-plugin/issues/544)) ([4e0ed2c](https://github.com/EveryInc/compound-engineering-plugin/commit/4e0ed2cc8ddadf6d5504210e1210728e6f7cc9aa))
+* **ce-update:** use correct marketplace name in cache path ([#566](https://github.com/EveryInc/compound-engineering-plugin/issues/566)) ([d8305dd](https://github.com/EveryInc/compound-engineering-plugin/commit/d8305dd159ebe9d89df9c4af5a7d0fb2b128801b))
+* **ce-work,ce-work-beta:** add safety checks for parallel subagent dispatch ([#557](https://github.com/EveryInc/compound-engineering-plugin/issues/557)) ([5cae4d1](https://github.com/EveryInc/compound-engineering-plugin/commit/5cae4d1dab212d7e438f0b081986e987c860d4d5))
+* **document-review, review:** restrict reviewer agents to read-only tools ([#553](https://github.com/EveryInc/compound-engineering-plugin/issues/553)) ([e45c435](https://github.com/EveryInc/compound-engineering-plugin/commit/e45c435b996f7c0bf5ae0e23c0ab95b3fbd9204c))
+* **git-commit-push-pr:** rewrite descriptions as net result, not changelog ([#558](https://github.com/EveryInc/compound-engineering-plugin/issues/558)) ([a559903](https://github.com/EveryInc/compound-engineering-plugin/commit/a55990387d48fa7af598880746ff862cc8f10acd))
+
 ## [2.65.0](https://github.com/EveryInc/compound-engineering-plugin/compare/compound-engineering-v2.64.0...compound-engineering-v2.65.0) (2026-04-11)