diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 78baf5b..d4f6f29 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "2.5.0"
+  ".": "3.0.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e801c4f..7d99af0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,22 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [3.0.0](https://github.com/OmnixHQ/ucp-client/compare/v2.5.0...v3.0.0) (2026-04-11)
+
+
+### ⚠ BREAKING CHANGES
+
+* CardPaymentInstrumentSchema removed (replaced by CardPaymentInstrumentAvailableCardPaymentInstrumentSchema). TotalTypeEnumSchema removed (no replacement in SDK v2.0.0). UcpReverseDomainNameSchema renamed to ReverseDomainNameSchema.
+
+### Features
+
+* upgrade @omnixhq/ucp-js-sdk to v2.0.0 with catalog and cart capabilities ([#38](https://github.com/OmnixHQ/ucp-client/issues/38)) ([08cba5e](https://github.com/OmnixHQ/ucp-client/commit/08cba5e6944e63f285a65833055d9ae633aac7f8))
+
+
+### Documentation
+
+* update CLAUDE.md and project-context.md for SDK v2.0.0 ([#40](https://github.com/OmnixHQ/ucp-client/issues/40)) ([9b59f3b](https://github.com/OmnixHQ/ucp-client/commit/9b59f3bf58726bba53c36999bba3546ea6c147ac))
+
 ## [2.5.0](https://github.com/OmnixHQ/ucp-client/compare/v2.4.0...v2.5.0) (2026-04-02)
 
 
diff --git a/package-lock.json b/package-lock.json
index 3b7bef7..3a143ca 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@omnixhq/ucp-client",
-  "version": "2.5.0",
+  "version": "3.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@omnixhq/ucp-client",
-      "version": "2.5.0",
+      "version": "3.0.0",
       "license": "MIT",
       "dependencies": {
         "@omnixhq/ucp-js-sdk": "2.0.0",
diff --git a/package.json b/package.json
index 88e4530..7bdcfac 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@omnixhq/ucp-client",
-  "version": "2.5.0",
+  "version": "3.0.0",
   "description": "Capability-aware TypeScript client for any UCP-compliant server",
   "author": "OmnixHQ <hello@getomnix.dev> (https://getomnix.dev)",
   "license": "MIT",