diff --git a/CHANGELOG.md b/CHANGELOG.md
index b9e57e88..c8b589af 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,14 @@
+## [0.39.0](https://github.com/archgate/cli/compare/v0.38.0...v0.39.0) (2026-05-25)
+
+### Features
+
+* **check:** add --base flag for cross-file rule parity between local and CI ([#339](https://github.com/archgate/cli/issues/339)) ([1058aa5](https://github.com/archgate/cli/commit/1058aa5550492eb169a74b93e3190550fbc2487f)), closes [#338](https://github.com/archgate/cli/issues/338)
+
+### Performance Improvements
+
+* **check:** batch git subprocesses and auto-populate baseBranch on init ([#347](https://github.com/archgate/cli/issues/347)) ([d0aa6b2](https://github.com/archgate/cli/commit/d0aa6b2b4fb223d58bafa507f1877eecd8e0cb85)), closes [#343](https://github.com/archgate/cli/issues/343) [#346](https://github.com/archgate/cli/issues/346) [#343](https://github.com/archgate/cli/issues/343) [#346](https://github.com/archgate/cli/issues/346)
+* **check:** parallelize file reads in grepFiles() ([#349](https://github.com/archgate/cli/issues/349)) ([1d7bd1f](https://github.com/archgate/cli/commit/1d7bd1f22a50edb0c55f8e651eccfa87e9f92a91)), closes [#344](https://github.com/archgate/cli/issues/344)
+
 ## [0.38.0](https://github.com/archgate/cli/compare/v0.37.0...v0.38.0) (2026-05-24)
 
 ### Features
diff --git a/docs/astro.config.mjs b/docs/astro.config.mjs
index 75a0b160..ffb53847 100644
--- a/docs/astro.config.mjs
+++ b/docs/astro.config.mjs
@@ -177,7 +177,7 @@ export default defineConfig({
             applicationCategory: "DeveloperApplication",
             applicationSubCategory: "Code Governance",
             operatingSystem: "macOS, Linux, Windows",
-            softwareVersion: "0.38.0",
+            softwareVersion: "0.39.0",
             license: "https://github.com/archgate/cli/blob/main/LICENSE",
             offers: { "@type": "Offer", price: "0", priceCurrency: "USD" },
             url: "https://cli.archgate.dev",
diff --git a/docs/public/version.json b/docs/public/version.json
index 3076141f..7a9252d3 100644
--- a/docs/public/version.json
+++ b/docs/public/version.json
@@ -1 +1 @@
-{ "version": "v0.38.0" }
+{ "version": "v0.39.0" }
diff --git a/package.json b/package.json
index 06723487..aeba64c7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "archgate",
-  "version": "0.38.0",
+  "version": "0.39.0",
   "description": "Enforce Architecture Decision Records as executable rules — for both humans and AI agents",
   "keywords": [
     "adr",