diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index d404c8c0c..e3c4c7aee 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,13 +1,13 @@
 {
-  "packages/universal/api-schemas": "1.2.0",
-  "packages/universal/api-client": "1.1.1",
-  "packages/universal/core-sdk": "1.3.0",
-  "packages/node/node-sdk": "1.2.1",
-  "packages/web/web-sdk": "1.3.0",
-  "packages/web/frameworks/react-web-sdk": "1.3.0",
-  "packages/web/frameworks/nextjs-sdk": "1.3.0",
-  "packages/web/preview-panel": "1.2.0",
-  "packages/react-native-sdk": "1.1.0",
-  "packages/android/ContentfulOptimization": "1.1.0",
-  "packages/ios/ContentfulOptimization": "1.1.0"
+  "packages/universal/api-schemas": "1.2.1",
+  "packages/universal/api-client": "2.0.0",
+  "packages/universal/core-sdk": "2.0.0",
+  "packages/node/node-sdk": "2.0.0",
+  "packages/web/web-sdk": "2.0.0",
+  "packages/web/frameworks/react-web-sdk": "2.0.0",
+  "packages/web/frameworks/nextjs-sdk": "2.0.0",
+  "packages/web/preview-panel": "2.0.0",
+  "packages/react-native-sdk": "2.0.0",
+  "packages/android/ContentfulOptimization": "2.0.0",
+  "packages/ios/ContentfulOptimization": "2.0.0"
 }
diff --git a/packages/android/ContentfulOptimization/CHANGELOG.md b/packages/android/ContentfulOptimization/CHANGELOG.md
index 59fc8c664..b0b929336 100644
--- a/packages/android/ContentfulOptimization/CHANGELOG.md
+++ b/packages/android/ContentfulOptimization/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Changelog
 
+## [2.0.0](https://github.com/contentful/optimization/compare/optimization-android-v1.1.0...optimization-android-v2.0.0) (2026-09-21)
+
+### ⚠ BREAKING CHANGES
+
+- **api-client:** SDK configuration now requires spaceId instead of clientId and defaults environment to master instead of main. The Experience and Insights API route contracts, native SDK initialization APIs, Web Component attributes, and exported API schemas have also changed. Existing consumers must migrate before upgrading.
+- **api-client:** SDK configuration now requires spaceId instead of clientId and defaults environment to master instead of main. The Experience and Insights API route contracts, native SDK initialization APIs, Web Component attributes, and exported API schemas have also changed. Existing consumers must migrate before upgrading.
+
+### Features
+
+- **api-client:** migrate Experience API to v3 and Insights API to v2 ([fa0896c](https://github.com/contentful/optimization/commit/fa0896cc6a59138165c87120e6030e38871b9cbd))
+- **api-client:** migrate Experience API to v3 and Insights API to v2 ([fa0896c](https://github.com/contentful/optimization/commit/fa0896cc6a59138165c87120e6030e38871b9cbd))
+
+### Bug Fixes
+
+- **android:** harden backup and TLS guidance ([#502](https://github.com/contentful/optimization/issues/502)) ([86949a4](https://github.com/contentful/optimization/commit/86949a4e1b76afaa80958acad73ecad3f66af89a))
+
 ## [1.1.0](https://github.com/contentful/optimization/compare/optimization-android-v1.0.0...optimization-android-v1.1.0) (2026-08-21)
 
 ### Features
diff --git a/packages/android/ContentfulOptimization/VERSION b/packages/android/ContentfulOptimization/VERSION
index 9084fa2f7..227cea215 100644
--- a/packages/android/ContentfulOptimization/VERSION
+++ b/packages/android/ContentfulOptimization/VERSION
@@ -1 +1 @@
-1.1.0
+2.0.0
diff --git a/packages/ios/ContentfulOptimization/CHANGELOG.md b/packages/ios/ContentfulOptimization/CHANGELOG.md
index b843469ce..c064dedb6 100644
--- a/packages/ios/ContentfulOptimization/CHANGELOG.md
+++ b/packages/ios/ContentfulOptimization/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [2.0.0](https://github.com/contentful/optimization/compare/optimization-swift-v1.1.0...optimization-swift-v2.0.0) (2026-09-21)
+
+### ⚠ BREAKING CHANGES
+
+- **api-client:** SDK configuration now requires spaceId instead of clientId and defaults environment to master instead of main. The Experience and Insights API route contracts, native SDK initialization APIs, Web Component attributes, and exported API schemas have also changed. Existing consumers must migrate before upgrading.
+- **api-client:** SDK configuration now requires spaceId instead of clientId and defaults environment to master instead of main. The Experience and Insights API route contracts, native SDK initialization APIs, Web Component attributes, and exported API schemas have also changed. Existing consumers must migrate before upgrading.
+
+### Features
+
+- **api-client:** migrate Experience API to v3 and Insights API to v2 ([fa0896c](https://github.com/contentful/optimization/commit/fa0896cc6a59138165c87120e6030e38871b9cbd))
+- **api-client:** migrate Experience API to v3 and Insights API to v2 ([fa0896c](https://github.com/contentful/optimization/commit/fa0896cc6a59138165c87120e6030e38871b9cbd))
+
 ## [1.1.0](https://github.com/contentful/optimization/compare/optimization-swift-v1.0.0...optimization-swift-v1.1.0) (2026-08-21)
 
 ### Features
diff --git a/packages/ios/ContentfulOptimization/VERSION b/packages/ios/ContentfulOptimization/VERSION
index 9084fa2f7..227cea215 100644
--- a/packages/ios/ContentfulOptimization/VERSION
+++ b/packages/ios/ContentfulOptimization/VERSION
@@ -1 +1 @@
-1.1.0
+2.0.0
diff --git a/packages/node/node-sdk/CHANGELOG.md b/packages/node/node-sdk/CHANGELOG.md
index dafc58cd0..fa97488f8 100644
--- a/packages/node/node-sdk/CHANGELOG.md
+++ b/packages/node/node-sdk/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Changelog
 
+## [2.0.0](https://github.com/contentful/optimization/compare/optimization-node-v1.2.1...optimization-node-v2.0.0) (2026-09-21)
+
+### ⚠ BREAKING CHANGES
+
+- **api-client:** SDK configuration now requires spaceId instead of clientId and defaults environment to master instead of main. The Experience and Insights API route contracts, native SDK initialization APIs, Web Component attributes, and exported API schemas have also changed. Existing consumers must migrate before upgrading.
+
+### Features
+
+- **api-client:** migrate Experience API to v3 and Insights API to v2 ([fa0896c](https://github.com/contentful/optimization/commit/fa0896cc6a59138165c87120e6030e38871b9cbd))
+
+### Dependencies
+
+- The following workspace dependencies were updated
+  - dependencies
+    - @contentful/optimization-core bumped to 2.0.0
+
 ## [1.2.1](https://github.com/contentful/optimization/compare/optimization-node-v1.2.0...optimization-node-v1.2.1) (2026-08-21)
 
 ### Dependencies
diff --git a/packages/node/node-sdk/package.json b/packages/node/node-sdk/package.json
index d2f7d4dc2..89f4935bc 100644
--- a/packages/node/node-sdk/package.json
+++ b/packages/node/node-sdk/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@contentful/optimization-node",
   "description": "Node.js SDK for Contentful Optimization",
-  "version": "1.2.1",
+  "version": "2.0.0",
   "license": "MIT",
   "repository": {
     "type": "git",
diff --git a/packages/react-native-sdk/CHANGELOG.md b/packages/react-native-sdk/CHANGELOG.md
index c98fff6e7..7304ee40b 100644
--- a/packages/react-native-sdk/CHANGELOG.md
+++ b/packages/react-native-sdk/CHANGELOG.md
@@ -1,5 +1,25 @@
 # Changelog
 
+## [2.0.0](https://github.com/contentful/optimization/compare/optimization-react-native-v1.1.0...optimization-react-native-v2.0.0) (2026-09-21)
+
+### ⚠ BREAKING CHANGES
+
+- **api-client:** SDK configuration now requires spaceId instead of clientId and defaults environment to master instead of main. The Experience and Insights API route contracts, native SDK initialization APIs, Web Component attributes, and exported API schemas have also changed. Existing consumers must migrate before upgrading.
+
+### Features
+
+- **api-client:** migrate Experience API to v3 and Insights API to v2 ([fa0896c](https://github.com/contentful/optimization/commit/fa0896cc6a59138165c87120e6030e38871b9cbd))
+
+### Bug Fixes
+
+- **deps:** remediate pnpm audit findings ([#505](https://github.com/contentful/optimization/issues/505)) ([b293d74](https://github.com/contentful/optimization/commit/b293d742368fa1c396bcbc222fa3792b559b3deb))
+
+### Dependencies
+
+- The following workspace dependencies were updated
+  - dependencies
+    - @contentful/optimization-core bumped to 2.0.0
+
 ## [1.1.0](https://github.com/contentful/optimization/compare/optimization-react-native-v1.0.0...optimization-react-native-v1.1.0) (2026-08-21)
 
 ### Features
diff --git a/packages/react-native-sdk/package.json b/packages/react-native-sdk/package.json
index 50df35313..7dc298406 100644
--- a/packages/react-native-sdk/package.json
+++ b/packages/react-native-sdk/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@contentful/optimization-react-native",
   "description": "React Native SDK for Contentful Optimization",
-  "version": "1.1.0",
+  "version": "2.0.0",
   "license": "MIT",
   "repository": {
     "type": "git",
diff --git a/packages/universal/api-client/CHANGELOG.md b/packages/universal/api-client/CHANGELOG.md
index 7417df552..6185b2fa8 100644
--- a/packages/universal/api-client/CHANGELOG.md
+++ b/packages/universal/api-client/CHANGELOG.md
@@ -1,5 +1,15 @@
 # Changelog
 
+## [2.0.0](https://github.com/contentful/optimization/compare/optimization-api-client-v1.1.1...optimization-api-client-v2.0.0) (2026-09-21)
+
+### ⚠ BREAKING CHANGES
+
+- **api-client:** SDK configuration now requires spaceId instead of clientId and defaults environment to master instead of main. The Experience and Insights API route contracts, native SDK initialization APIs, Web Component attributes, and exported API schemas have also changed. Existing consumers must migrate before upgrading.
+
+### Features
+
+- **api-client:** migrate Experience API to v3 and Insights API to v2 ([fa0896c](https://github.com/contentful/optimization/commit/fa0896cc6a59138165c87120e6030e38871b9cbd))
+
 ## [1.1.1](https://github.com/contentful/optimization/compare/optimization-api-client-v1.1.0...optimization-api-client-v1.1.1) (2026-08-10)
 
 ### Dependencies
diff --git a/packages/universal/api-client/package.json b/packages/universal/api-client/package.json
index 33bbf5172..06a6f3124 100644
--- a/packages/universal/api-client/package.json
+++ b/packages/universal/api-client/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@contentful/optimization-api-client",
   "description": "API client for Contentful Optimization services",
-  "version": "1.1.1",
+  "version": "2.0.0",
   "license": "MIT",
   "repository": {
     "type": "git",
diff --git a/packages/universal/api-schemas/CHANGELOG.md b/packages/universal/api-schemas/CHANGELOG.md
index 948be28bf..d9f0c2625 100644
--- a/packages/universal/api-schemas/CHANGELOG.md
+++ b/packages/universal/api-schemas/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## [1.2.1](https://github.com/contentful/optimization/compare/optimization-api-schemas-v1.2.0...optimization-api-schemas-v1.2.1) (2026-09-21)
+
+### Dependencies
+
+- The following workspace dependencies were updated
+  - dependencies
+    - @contentful/optimization-api-client bumped to 2.0.0
+    - @contentful/optimization-core bumped to 2.0.0
+
 ## [1.2.0](https://github.com/contentful/optimization/compare/optimization-api-schemas-v1.1.0...optimization-api-schemas-v1.2.0) (2026-08-10)
 
 ### Features
diff --git a/packages/universal/api-schemas/package.json b/packages/universal/api-schemas/package.json
index 5b550718e..15176ca34 100644
--- a/packages/universal/api-schemas/package.json
+++ b/packages/universal/api-schemas/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@contentful/optimization-api-schemas",
   "description": "Deprecated compatibility facade for Contentful Optimization API schemas",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "license": "MIT",
   "repository": {
     "type": "git",
diff --git a/packages/universal/core-sdk/CHANGELOG.md b/packages/universal/core-sdk/CHANGELOG.md
index baa22dcf3..82ffaf9bb 100644
--- a/packages/universal/core-sdk/CHANGELOG.md
+++ b/packages/universal/core-sdk/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Changelog
 
+## [2.0.0](https://github.com/contentful/optimization/compare/optimization-core-v1.3.0...optimization-core-v2.0.0) (2026-09-21)
+
+### ⚠ BREAKING CHANGES
+
+- **api-client:** SDK configuration now requires spaceId instead of clientId and defaults environment to master instead of main. The Experience and Insights API route contracts, native SDK initialization APIs, Web Component attributes, and exported API schemas have also changed. Existing consumers must migrate before upgrading.
+
+### Features
+
+- **api-client:** migrate Experience API to v3 and Insights API to v2 ([fa0896c](https://github.com/contentful/optimization/commit/fa0896cc6a59138165c87120e6030e38871b9cbd))
+
+### Dependencies
+
+- The following workspace dependencies were updated
+  - dependencies
+    - @contentful/optimization-api-client bumped to 2.0.0
+
 ## [1.3.0](https://github.com/contentful/optimization/compare/optimization-core-v1.2.0...optimization-core-v1.3.0) (2026-08-21)
 
 ### Features
diff --git a/packages/universal/core-sdk/package.json b/packages/universal/core-sdk/package.json
index dc8f95cc9..a6ddf3eeb 100644
--- a/packages/universal/core-sdk/package.json
+++ b/packages/universal/core-sdk/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@contentful/optimization-core",
   "description": "Platform-agnostic core SDK for Contentful Optimization",
-  "version": "1.3.0",
+  "version": "2.0.0",
   "license": "MIT",
   "repository": {
     "type": "git",
diff --git a/packages/web/frameworks/nextjs-sdk/CHANGELOG.md b/packages/web/frameworks/nextjs-sdk/CHANGELOG.md
index 543ec4e11..c174b7aef 100644
--- a/packages/web/frameworks/nextjs-sdk/CHANGELOG.md
+++ b/packages/web/frameworks/nextjs-sdk/CHANGELOG.md
@@ -1,5 +1,26 @@
 # Changelog
 
+## [2.0.0](https://github.com/contentful/optimization/compare/optimization-nextjs-v1.3.0...optimization-nextjs-v2.0.0) (2026-09-21)
+
+### ⚠ BREAKING CHANGES
+
+- **api-client:** SDK configuration now requires spaceId instead of clientId and defaults environment to master instead of main. The Experience and Insights API route contracts, native SDK initialization APIs, Web Component attributes, and exported API schemas have also changed. Existing consumers must migrate before upgrading.
+
+### Features
+
+- **api-client:** migrate Experience API to v3 and Insights API to v2 ([fa0896c](https://github.com/contentful/optimization/commit/fa0896cc6a59138165c87120e6030e38871b9cbd))
+
+### Bug Fixes
+
+- **deps:** remediate pnpm audit findings ([#505](https://github.com/contentful/optimization/issues/505)) ([b293d74](https://github.com/contentful/optimization/commit/b293d742368fa1c396bcbc222fa3792b559b3deb))
+
+### Dependencies
+
+- The following workspace dependencies were updated
+  - dependencies
+    - @contentful/optimization-node bumped to 2.0.0
+    - @contentful/optimization-react-web bumped to 2.0.0
+
 ## [1.3.0](https://github.com/contentful/optimization/compare/optimization-nextjs-v1.2.0...optimization-nextjs-v1.3.0) (2026-08-21)
 
 ### Features
diff --git a/packages/web/frameworks/nextjs-sdk/package.json b/packages/web/frameworks/nextjs-sdk/package.json
index de3bc5676..c472d1e52 100644
--- a/packages/web/frameworks/nextjs-sdk/package.json
+++ b/packages/web/frameworks/nextjs-sdk/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@contentful/optimization-nextjs",
   "description": "Next.js adapter for Contentful Optimization",
-  "version": "1.3.0",
+  "version": "2.0.0",
   "license": "MIT",
   "repository": {
     "type": "git",
diff --git a/packages/web/frameworks/react-web-sdk/CHANGELOG.md b/packages/web/frameworks/react-web-sdk/CHANGELOG.md
index 64403c9fb..9d71808f1 100644
--- a/packages/web/frameworks/react-web-sdk/CHANGELOG.md
+++ b/packages/web/frameworks/react-web-sdk/CHANGELOG.md
@@ -1,5 +1,25 @@
 # Changelog
 
+## [2.0.0](https://github.com/contentful/optimization/compare/optimization-react-web-v1.3.0...optimization-react-web-v2.0.0) (2026-09-21)
+
+### ⚠ BREAKING CHANGES
+
+- **api-client:** SDK configuration now requires spaceId instead of clientId and defaults environment to master instead of main. The Experience and Insights API route contracts, native SDK initialization APIs, Web Component attributes, and exported API schemas have also changed. Existing consumers must migrate before upgrading.
+
+### Features
+
+- **api-client:** migrate Experience API to v3 and Insights API to v2 ([fa0896c](https://github.com/contentful/optimization/commit/fa0896cc6a59138165c87120e6030e38871b9cbd))
+
+### Bug Fixes
+
+- **deps:** remediate pnpm audit findings ([#505](https://github.com/contentful/optimization/issues/505)) ([b293d74](https://github.com/contentful/optimization/commit/b293d742368fa1c396bcbc222fa3792b559b3deb))
+
+### Dependencies
+
+- The following workspace dependencies were updated
+  - dependencies
+    - @contentful/optimization-web bumped to 2.0.0
+
 ## [1.3.0](https://github.com/contentful/optimization/compare/optimization-react-web-v1.2.0...optimization-react-web-v1.3.0) (2026-08-21)
 
 ### Features
diff --git a/packages/web/frameworks/react-web-sdk/package.json b/packages/web/frameworks/react-web-sdk/package.json
index ff8a34afd..037b0bdd1 100644
--- a/packages/web/frameworks/react-web-sdk/package.json
+++ b/packages/web/frameworks/react-web-sdk/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@contentful/optimization-react-web",
   "description": "React SDK for Contentful Optimization",
-  "version": "1.3.0",
+  "version": "2.0.0",
   "license": "MIT",
   "repository": {
     "type": "git",
diff --git a/packages/web/preview-panel/CHANGELOG.md b/packages/web/preview-panel/CHANGELOG.md
index 96dbe29ff..cd39caf3e 100644
--- a/packages/web/preview-panel/CHANGELOG.md
+++ b/packages/web/preview-panel/CHANGELOG.md
@@ -1,5 +1,22 @@
 # Changelog
 
+## [2.0.0](https://github.com/contentful/optimization/compare/optimization-web-preview-panel-v1.2.0...optimization-web-preview-panel-v2.0.0) (2026-09-21)
+
+### ⚠ BREAKING CHANGES
+
+- **api-client:** SDK configuration now requires spaceId instead of clientId and defaults environment to master instead of main. The Experience and Insights API route contracts, native SDK initialization APIs, Web Component attributes, and exported API schemas have also changed. Existing consumers must migrate before upgrading.
+
+### Features
+
+- **api-client:** migrate Experience API to v3 and Insights API to v2 ([fa0896c](https://github.com/contentful/optimization/commit/fa0896cc6a59138165c87120e6030e38871b9cbd))
+
+### Dependencies
+
+- The following workspace dependencies were updated
+  - dependencies
+    - @contentful/optimization-core bumped to 2.0.0
+    - @contentful/optimization-web bumped to 2.0.0
+
 ## [1.2.0](https://github.com/contentful/optimization/compare/optimization-web-preview-panel-v1.1.1...optimization-web-preview-panel-v1.2.0) (2026-08-21)
 
 ### Features
diff --git a/packages/web/preview-panel/package.json b/packages/web/preview-panel/package.json
index 815f4c257..94c791d57 100644
--- a/packages/web/preview-panel/package.json
+++ b/packages/web/preview-panel/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@contentful/optimization-web-preview-panel",
   "description": "Preview panel UI for Contentful Optimization Web integrations",
-  "version": "1.2.0",
+  "version": "2.0.0",
   "license": "MIT",
   "repository": {
     "type": "git",
diff --git a/packages/web/web-sdk/CHANGELOG.md b/packages/web/web-sdk/CHANGELOG.md
index dfb369d0b..e1893c562 100644
--- a/packages/web/web-sdk/CHANGELOG.md
+++ b/packages/web/web-sdk/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Changelog
 
+## [2.0.0](https://github.com/contentful/optimization/compare/optimization-web-v1.3.0...optimization-web-v2.0.0) (2026-09-21)
+
+### ⚠ BREAKING CHANGES
+
+- **api-client:** SDK configuration now requires spaceId instead of clientId and defaults environment to master instead of main. The Experience and Insights API route contracts, native SDK initialization APIs, Web Component attributes, and exported API schemas have also changed. Existing consumers must migrate before upgrading.
+
+### Features
+
+- **api-client:** migrate Experience API to v3 and Insights API to v2 ([fa0896c](https://github.com/contentful/optimization/commit/fa0896cc6a59138165c87120e6030e38871b9cbd))
+
+### Dependencies
+
+- The following workspace dependencies were updated
+  - dependencies
+    - @contentful/optimization-core bumped to 2.0.0
+
 ## [1.3.0](https://github.com/contentful/optimization/compare/optimization-web-v1.2.0...optimization-web-v1.3.0) (2026-08-21)
 
 ### Features
diff --git a/packages/web/web-sdk/package.json b/packages/web/web-sdk/package.json
index 08c2f36b0..ffa1c41f9 100644
--- a/packages/web/web-sdk/package.json
+++ b/packages/web/web-sdk/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@contentful/optimization-web",
   "description": "Framework-agnostic Web client SDK for Contentful Optimization",
-  "version": "1.3.0",
+  "version": "2.0.0",
   "license": "MIT",
   "repository": {
     "type": "git",