diff --git a/CHANGELOG.md b/CHANGELOG.md
index 02a835ada..d29a54594 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,32 @@ Format based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Unreleased]
 
+## [2.46.0] - 2026-03-25
+
+### Added
+- **gsd**: single-writer engine v3 — state machine guards, actor identity, reversibility
+- **gsd**: single-writer state engine v2 — discipline layer on DB architecture
+- **gsd**: add workflow-logger and wire into engine, tool, manifest, reconcile paths (#2494)
+
+### Fixed
+- **gsd**: align prompts with single-writer tool API
+- **gsd**: integration-proof — check DB state not roadmap projection after reset
+- **gsd**: block milestone completion when verification fails (#2500)
+- **ci**: add typecheck:extensions to pretest to prevent silent type drift
+- **gsd**: relax integration-proof cross-validation for table-format roadmap
+- **gsd**: update integration-proof tests for table-format roadmap projections
+- **gsd**: update test assertions for schema v11, prompt changes, and removed completedUnits
+- **gsd**: update test files for removed completedUnits, writeLock signature, and type changes
+- **gsd**: remove stale completedUnits refs, fix writeLock callers, add missing imports
+- **gsd**: harden single-writer engine — close TOCTOU, intercept bypasses, status inconsistencies
+- **write-intercept**: close bare-relative-path bypass in STATE.md regex
+- **voice**: fix misleading portaudio error on PEP 668 Linux systems (#2403) (#2407)
+- **core**: address PR review feedback for non-apikey provider support (#2452)
+- **ci**: retry npm install in pipeline to handle registry propagation delay (#2462)
+- **gsd**: change default isolation mode from worktree to none (#2481)
+- **loader**: add startup checks for Node version and git availability (#2463)
+- **gsd**: add worktree lifecycle events to journal (#2486)
+
 ## [2.45.0] - 2026-03-25
 
 ### Added
@@ -1791,7 +1817,8 @@ 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/v2.45.0...HEAD
+[Unreleased]: https://github.com/gsd-build/gsd-2/compare/v2.46.0...HEAD
+[2.46.0]: https://github.com/gsd-build/gsd-2/compare/v2.45.0...v2.46.0
 [2.45.0]: https://github.com/gsd-build/gsd-2/compare/v2.44.0...v2.45.0
 [2.44.0]: https://github.com/gsd-build/gsd-2/compare/v2.43.0...v2.44.0
 [2.43.0]: https://github.com/gsd-build/gsd-2/compare/v2.42.0...v2.43.0
diff --git a/native/npm/darwin-arm64/package.json b/native/npm/darwin-arm64/package.json
index 66657021f..493055044 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": "2.45.0",
+  "version": "2.46.0",
   "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 c7f1efe73..daac4efeb 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": "2.45.0",
+  "version": "2.46.0",
   "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 0d4556abe..f95020760 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": "2.45.0",
+  "version": "2.46.0",
   "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 0193757e6..ebc933a39 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": "2.45.0",
+  "version": "2.46.0",
   "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 67ac75811..185ce0b03 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": "2.45.0",
+  "version": "2.46.0",
   "description": "GSD native engine binary for Windows x64 (MSVC)",
   "os": [
     "win32"
diff --git a/package.json b/package.json
index e1683260f..c3098878a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "gsd-pi",
-  "version": "2.45.0",
+  "version": "2.46.0",
   "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 2b756f72b..ce9d82f5c 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": "2.45.0",
+  "version": "2.46.0",
   "description": "Coding agent CLI (vendored from pi-mono)",
   "type": "module",
   "piConfig": {
diff --git a/pkg/package.json b/pkg/package.json
index a2cb485bf..0621ecf0f 100644
--- a/pkg/package.json
+++ b/pkg/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@glittercowboy/gsd",
-  "version": "2.45.0",
+  "version": "2.46.0",
   "piConfig": {
     "name": "gsd",
     "configDir": ".gsd"