diff --git a/CHANGELOG.md b/CHANGELOG.md
index a5e7be9eb..2dc4f3e2e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,22 @@ Format based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Unreleased]
 
+## [2.55.0] - 2026-03-27
+
+### Added
+- colorized headless verbose output with thinking, phases, cost, and durations (#2886)
+- headless text mode observability + skip UAT pause (#2867)
+
+### Fixed
+- **cli**: let gsd update bypass version mismatch gate (#2845)
+- **contracts**: add isWorkspaceEvent guard + close routeLiveInteractionEvent exhaustiveness gap (#2878)
+- **gsd**: use project root for prior-slice dispatch guard (#2863)
+- **gsd**: include queue context in milestone planning prompts (#2846)
+- detect monorepo roots in project discovery to prevent workspace fragmentation (#2849)
+- **bg-shell**: recover from deleted cwd in timers (#2850)
+- **gsd**: enable dynamic routing without models section (#2851)
+- **interactive**: fully remove providers from /providers (#2852)
+
 ## [2.54.0] - 2026-03-27
 
 ### Added
@@ -2079,7 +2095,8 @@ Format based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 ### Changed
 - License updated to MIT
 
-[Unreleased]: https://github.com/gsd-build/gsd-2/compare/v2.54.0...HEAD
+[Unreleased]: https://github.com/gsd-build/gsd-2/compare/v2.55.0...HEAD
+[2.55.0]: https://github.com/gsd-build/gsd-2/compare/v2.54.0...v2.55.0
 [2.54.0]: https://github.com/gsd-build/gsd-2/compare/v2.53.0...v2.54.0
 [2.53.0]: https://github.com/gsd-build/gsd-2/compare/v2.52.0...v2.53.0
 [2.52.0]: https://github.com/gsd-build/gsd-2/compare/v2.51.0...v2.52.0
diff --git a/native/npm/darwin-arm64/package.json b/native/npm/darwin-arm64/package.json
index a318abc8b..3216cd21f 100644
--- a/native/npm/darwin-arm64/package.json
+++ b/native/npm/darwin-arm64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@gsd-build/engine-darwin-arm64",
-  "version": "2.54.0",
+  "version": "2.55.0",
   "description": "GSD native engine binary for macOS ARM64",
   "os": [
     "darwin"
diff --git a/native/npm/darwin-x64/package.json b/native/npm/darwin-x64/package.json
index e4b5cafd8..f30ce8379 100644
--- a/native/npm/darwin-x64/package.json
+++ b/native/npm/darwin-x64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@gsd-build/engine-darwin-x64",
-  "version": "2.54.0",
+  "version": "2.55.0",
   "description": "GSD native engine binary for macOS Intel",
   "os": [
     "darwin"
diff --git a/native/npm/linux-arm64-gnu/package.json b/native/npm/linux-arm64-gnu/package.json
index a696bcffe..2d201f5ee 100644
--- a/native/npm/linux-arm64-gnu/package.json
+++ b/native/npm/linux-arm64-gnu/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@gsd-build/engine-linux-arm64-gnu",
-  "version": "2.54.0",
+  "version": "2.55.0",
   "description": "GSD native engine binary for Linux ARM64 (glibc)",
   "os": [
     "linux"
diff --git a/native/npm/linux-x64-gnu/package.json b/native/npm/linux-x64-gnu/package.json
index 5476abbe3..e87092d07 100644
--- a/native/npm/linux-x64-gnu/package.json
+++ b/native/npm/linux-x64-gnu/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@gsd-build/engine-linux-x64-gnu",
-  "version": "2.54.0",
+  "version": "2.55.0",
   "description": "GSD native engine binary for Linux x64 (glibc)",
   "os": [
     "linux"
diff --git a/native/npm/win32-x64-msvc/package.json b/native/npm/win32-x64-msvc/package.json
index 0281d3215..159255c52 100644
--- a/native/npm/win32-x64-msvc/package.json
+++ b/native/npm/win32-x64-msvc/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@gsd-build/engine-win32-x64-msvc",
-  "version": "2.54.0",
+  "version": "2.55.0",
   "description": "GSD native engine binary for Windows x64 (MSVC)",
   "os": [
     "win32"
diff --git a/package.json b/package.json
index df45caf1c..0c925eb9b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "gsd-pi",
-  "version": "2.54.0",
+  "version": "2.55.0",
   "description": "GSD — Get Shit Done coding agent",
   "license": "MIT",
   "repository": {
diff --git a/packages/pi-coding-agent/package.json b/packages/pi-coding-agent/package.json
index f986489ec..82bcd709a 100644
--- a/packages/pi-coding-agent/package.json
+++ b/packages/pi-coding-agent/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@gsd/pi-coding-agent",
-  "version": "2.54.0",
+  "version": "2.55.0",
   "description": "Coding agent CLI (vendored from pi-mono)",
   "type": "module",
   "piConfig": {
diff --git a/pkg/package.json b/pkg/package.json
index 73f7bf62c..8387ef366 100644
--- a/pkg/package.json
+++ b/pkg/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@glittercowboy/gsd",
-  "version": "2.54.0",
+  "version": "2.55.0",
   "piConfig": {
     "name": "gsd",
     "configDir": ".gsd"