TanStack · github-actions · Feb 26, 2026 · Feb 27, 2026 · Feb 27, 2026 · Feb 27, 2026
diff --git a/.changeset/custom-events-dispatch.md b/.changeset/custom-events-dispatch.md
diff --git a/.changeset/twenty-berries-help.md b/.changeset/twenty-berries-help.md
diff --git a/.changeset/wicked-humans-shop.md b/.changeset/wicked-humans-shop.md
diff --git a/examples/ts-svelte-chat/CHANGELOG.md b/examples/ts-svelte-chat/CHANGELOG.md
@@ -1,5 +1,18 @@
 # ts-svelte-chat
 
+## 0.1.13
+
+### Patch Changes
+
+- Updated dependencies [[`5aa6acc`](https://github.com/TanStack/ai/commit/5aa6acc1a4faea5346f750322e80984abf2d7059), [`1f800aa`](https://github.com/TanStack/ai/commit/1f800aacf57081f37a075bc8d08ff397cb33cbe9)]:
+  - @tanstack/ai@0.6.0
+  - @tanstack/ai-client@0.5.0
+  - @tanstack/ai-svelte@0.6.0
+  - @tanstack/ai-anthropic@0.6.0
+  - @tanstack/ai-gemini@0.6.0
+  - @tanstack/ai-ollama@0.6.0
+  - @tanstack/ai-openai@0.6.0
+
 ## 0.1.12
 
 ### Patch Changes

diff --git a/examples/ts-svelte-chat/package.json b/examples/ts-svelte-chat/package.json
@@ -1,7 +1,7 @@
 {
   "name": "ts-svelte-chat",
   "private": true,
-  "version": "0.1.12",
+  "version": "0.1.13",
   "type": "module",
   "scripts": {
     "dev": "vite dev --port 3000",

diff --git a/examples/ts-vue-chat/CHANGELOG.md b/examples/ts-vue-chat/CHANGELOG.md
@@ -1,5 +1,19 @@
 # ts-vue-chat
 
+## 0.1.13
+
+### Patch Changes
+
+- Updated dependencies [[`5aa6acc`](https://github.com/TanStack/ai/commit/5aa6acc1a4faea5346f750322e80984abf2d7059), [`1f800aa`](https://github.com/TanStack/ai/commit/1f800aacf57081f37a075bc8d08ff397cb33cbe9)]:
+  - @tanstack/ai@0.6.0
+  - @tanstack/ai-client@0.5.0
+  - @tanstack/ai-vue@0.6.0
+  - @tanstack/ai-anthropic@0.6.0
+  - @tanstack/ai-gemini@0.6.0
+  - @tanstack/ai-ollama@0.6.0
+  - @tanstack/ai-openai@0.6.0
+  - @tanstack/ai-vue-ui@0.1.11
+
 ## 0.1.12
 
 ### Patch Changes

diff --git a/examples/ts-vue-chat/package.json b/examples/ts-vue-chat/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ts-vue-chat",
-  "version": "0.1.12",
+  "version": "0.1.13",
   "private": true,
   "type": "module",
   "scripts": {

diff --git a/examples/vanilla-chat/CHANGELOG.md b/examples/vanilla-chat/CHANGELOG.md
@@ -1,5 +1,12 @@
 # vanilla-chat
 
+## 0.0.15
+
+### Patch Changes
+
+- Updated dependencies [[`5aa6acc`](https://github.com/TanStack/ai/commit/5aa6acc1a4faea5346f750322e80984abf2d7059), [`1f800aa`](https://github.com/TanStack/ai/commit/1f800aacf57081f37a075bc8d08ff397cb33cbe9)]:
+  - @tanstack/ai-client@0.5.0
+
 ## 0.0.14
 
 ### Patch Changes

diff --git a/examples/vanilla-chat/package.json b/examples/vanilla-chat/package.json
@@ -2,7 +2,7 @@
   "name": "vanilla-chat",
   "private": true,
   "type": "module",
-  "version": "0.0.14",
+  "version": "0.0.15",
   "scripts": {
     "start": "vite --port 3001",
     "dev": "vite --port 3001",

diff --git a/packages/typescript/ai-anthropic/CHANGELOG.md b/packages/typescript/ai-anthropic/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @tanstack/ai-anthropic
 
+## 0.6.0
+
+### Patch Changes
+
+- Updated dependencies [[`5aa6acc`](https://github.com/TanStack/ai/commit/5aa6acc1a4faea5346f750322e80984abf2d7059), [`1f800aa`](https://github.com/TanStack/ai/commit/1f800aacf57081f37a075bc8d08ff397cb33cbe9)]:
+  - @tanstack/ai@0.6.0
+
 ## 0.5.0
 
 ### Minor Changes

diff --git a/packages/typescript/ai-anthropic/package.json b/packages/typescript/ai-anthropic/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-anthropic",
-  "version": "0.5.0",
+  "version": "0.6.0",
   "description": "Anthropic Claude adapter for TanStack AI",
   "author": "",
   "license": "MIT",

diff --git a/packages/typescript/ai-client/CHANGELOG.md b/packages/typescript/ai-client/CHANGELOG.md
@@ -1,5 +1,20 @@
 # @tanstack/ai-client
 
+## 0.5.0
+
+### Minor Changes
+
+- feat: add custom event dispatch support for tools ([#293](https://github.com/TanStack/ai/pull/293))
+
+  Tools can now emit custom events during execution via `dispatchEvent()`. Custom events are streamed to clients as `custom_event` stream chunks and surfaced through the client chat hook's `onCustomEvent` callback. This enables tools to send progress updates, intermediate results, or any structured data back to the UI during long-running operations.
+
+### Patch Changes
+
+- Refactor CustomEvent property from 'data' to 'value' for AG-UI compliance ([#307](https://github.com/TanStack/ai/pull/307))
+
+- Updated dependencies [[`5aa6acc`](https://github.com/TanStack/ai/commit/5aa6acc1a4faea5346f750322e80984abf2d7059), [`1f800aa`](https://github.com/TanStack/ai/commit/1f800aacf57081f37a075bc8d08ff397cb33cbe9)]:
+  - @tanstack/ai@0.6.0
+
 ## 0.4.5
 
 ### Patch Changes

diff --git a/packages/typescript/ai-client/package.json b/packages/typescript/ai-client/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-client",
-  "version": "0.4.5",
+  "version": "0.5.0",
   "description": "Framework-agnostic headless client for TanStack AI",
   "author": "",
   "license": "MIT",

diff --git a/packages/typescript/ai-devtools/CHANGELOG.md b/packages/typescript/ai-devtools/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @tanstack/ai-devtools-core
 
+## 0.3.5
+
+### Patch Changes
+
+- Updated dependencies [[`5aa6acc`](https://github.com/TanStack/ai/commit/5aa6acc1a4faea5346f750322e80984abf2d7059), [`1f800aa`](https://github.com/TanStack/ai/commit/1f800aacf57081f37a075bc8d08ff397cb33cbe9)]:
+  - @tanstack/ai@0.6.0
+
 ## 0.3.4
 
 ### Patch Changes

diff --git a/packages/typescript/ai-devtools/package.json b/packages/typescript/ai-devtools/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-devtools-core",
-  "version": "0.3.4",
+  "version": "0.3.5",
   "description": "Core TanStack AI Devtools",
   "author": "",
   "license": "MIT",

diff --git a/packages/typescript/ai-fal/CHANGELOG.md b/packages/typescript/ai-fal/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @tanstack/ai-fal
 
+## 0.6.0
+
+### Patch Changes
+
+- Updated dependencies [[`5aa6acc`](https://github.com/TanStack/ai/commit/5aa6acc1a4faea5346f750322e80984abf2d7059), [`1f800aa`](https://github.com/TanStack/ai/commit/1f800aacf57081f37a075bc8d08ff397cb33cbe9)]:
+  - @tanstack/ai@0.6.0
+
 ## 0.0.2
 
 ### Patch Changes

diff --git a/packages/typescript/ai-fal/package.json b/packages/typescript/ai-fal/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-fal",
-  "version": "0.0.2",
+  "version": "0.6.0",
   "description": "fal.ai adapter for TanStack AI",
   "author": "",
   "license": "MIT",

diff --git a/packages/typescript/ai-gemini/CHANGELOG.md b/packages/typescript/ai-gemini/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @tanstack/ai-gemini
 
+## 0.6.0
+
+### Patch Changes
+
+- Updated dependencies [[`5aa6acc`](https://github.com/TanStack/ai/commit/5aa6acc1a4faea5346f750322e80984abf2d7059), [`1f800aa`](https://github.com/TanStack/ai/commit/1f800aacf57081f37a075bc8d08ff397cb33cbe9)]:
+  - @tanstack/ai@0.6.0
+
 ## 0.5.0
 
 ### Minor Changes

diff --git a/packages/typescript/ai-gemini/package.json b/packages/typescript/ai-gemini/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-gemini",
-  "version": "0.5.0",
+  "version": "0.6.0",
   "description": "Google Gemini adapter for TanStack AI",
   "author": "",
   "license": "MIT",

diff --git a/packages/typescript/ai-grok/CHANGELOG.md b/packages/typescript/ai-grok/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @tanstack/ai-grok
 
+## 0.6.0
+
+### Patch Changes
+
+- Updated dependencies [[`5aa6acc`](https://github.com/TanStack/ai/commit/5aa6acc1a4faea5346f750322e80984abf2d7059), [`1f800aa`](https://github.com/TanStack/ai/commit/1f800aacf57081f37a075bc8d08ff397cb33cbe9)]:
+  - @tanstack/ai@0.6.0
+
 ## 0.5.0
 
 ### Patch Changes

diff --git a/packages/typescript/ai-grok/package.json b/packages/typescript/ai-grok/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-grok",
-  "version": "0.5.0",
+  "version": "0.6.0",
   "description": "Grok (xAI) adapter for TanStack AI",
   "author": "",
   "license": "MIT",

diff --git a/packages/typescript/ai-ollama/CHANGELOG.md b/packages/typescript/ai-ollama/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @tanstack/ai-ollama
 
+## 0.6.0
+
+### Patch Changes
+
+- Updated dependencies [[`5aa6acc`](https://github.com/TanStack/ai/commit/5aa6acc1a4faea5346f750322e80984abf2d7059), [`1f800aa`](https://github.com/TanStack/ai/commit/1f800aacf57081f37a075bc8d08ff397cb33cbe9)]:
+  - @tanstack/ai@0.6.0
+
 ## 0.5.0
 
 ### Patch Changes

diff --git a/packages/typescript/ai-ollama/package.json b/packages/typescript/ai-ollama/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-ollama",
-  "version": "0.5.0",
+  "version": "0.6.0",
   "description": "Ollama adapter for TanStack AI",
   "author": "",
   "license": "MIT",

diff --git a/packages/typescript/ai-openai/CHANGELOG.md b/packages/typescript/ai-openai/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @tanstack/ai-openai
 
+## 0.6.0
+
+### Patch Changes
+
+- Updated dependencies [[`5aa6acc`](https://github.com/TanStack/ai/commit/5aa6acc1a4faea5346f750322e80984abf2d7059), [`1f800aa`](https://github.com/TanStack/ai/commit/1f800aacf57081f37a075bc8d08ff397cb33cbe9)]:
+  - @tanstack/ai@0.6.0
+
 ## 0.5.0
 
 ### Patch Changes

diff --git a/packages/typescript/ai-openai/package.json b/packages/typescript/ai-openai/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-openai",
-  "version": "0.5.0",
+  "version": "0.6.0",
   "description": "OpenAI adapter for TanStack AI",
   "author": "",
   "license": "MIT",

diff --git a/packages/typescript/ai-openrouter/CHANGELOG.md b/packages/typescript/ai-openrouter/CHANGELOG.md
@@ -1,5 +1,14 @@
 # @tanstack/ai-openrouter
 
+## 0.6.0
+
+### Patch Changes
+
+- fix incorrect modelOptions ([#317](https://github.com/TanStack/ai/pull/317))
+
+- Updated dependencies [[`5aa6acc`](https://github.com/TanStack/ai/commit/5aa6acc1a4faea5346f750322e80984abf2d7059), [`1f800aa`](https://github.com/TanStack/ai/commit/1f800aacf57081f37a075bc8d08ff397cb33cbe9)]:
+  - @tanstack/ai@0.6.0
+
 ## 0.5.1
 
 ### Patch Changes

diff --git a/packages/typescript/ai-openrouter/package.json b/packages/typescript/ai-openrouter/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-openrouter",
-  "version": "0.5.1",
+  "version": "0.6.0",
   "description": "OpenRouter adapter for TanStack AI",
   "author": "",
   "license": "MIT",

diff --git a/packages/typescript/ai-preact/CHANGELOG.md b/packages/typescript/ai-preact/CHANGELOG.md
@@ -1,5 +1,13 @@
 # @tanstack/ai-preact
 
+## 0.6.0
+
+### Patch Changes
+
+- Updated dependencies [[`5aa6acc`](https://github.com/TanStack/ai/commit/5aa6acc1a4faea5346f750322e80984abf2d7059), [`1f800aa`](https://github.com/TanStack/ai/commit/1f800aacf57081f37a075bc8d08ff397cb33cbe9)]:
+  - @tanstack/ai@0.6.0
+  - @tanstack/ai-client@0.5.0
+
 ## 0.5.4
 
 ### Patch Changes

diff --git a/packages/typescript/ai-preact/package.json b/packages/typescript/ai-preact/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-preact",
-  "version": "0.5.4",
+  "version": "0.6.0",
   "description": "Preact hooks for TanStack AI",
   "author": "",
   "license": "MIT",

diff --git a/packages/typescript/ai-react-ui/CHANGELOG.md b/packages/typescript/ai-react-ui/CHANGELOG.md
@@ -1,5 +1,13 @@
 # @tanstack/ai-react-ui
 
+## 0.5.0
+
+### Patch Changes
+
+- Updated dependencies [[`5aa6acc`](https://github.com/TanStack/ai/commit/5aa6acc1a4faea5346f750322e80984abf2d7059), [`1f800aa`](https://github.com/TanStack/ai/commit/1f800aacf57081f37a075bc8d08ff397cb33cbe9)]:
+  - @tanstack/ai-client@0.5.0
+  - @tanstack/ai-react@0.6.0
+
 ## 0.5.1
 
 ### Patch Changes

diff --git a/packages/typescript/ai-react-ui/package.json b/packages/typescript/ai-react-ui/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-react-ui",
-  "version": "0.5.1",
+  "version": "0.5.0",
   "description": "Headless React components for building AI chat interfaces",
   "module": "./dist/esm/index.js",
   "types": "./dist/esm/index.d.ts",

diff --git a/packages/typescript/ai-react/CHANGELOG.md b/packages/typescript/ai-react/CHANGELOG.md
@@ -1,5 +1,17 @@
 # @tanstack/ai-react
 
+## 0.6.0
+
+### Patch Changes
+
+- feat: add custom event dispatch support for tools ([#293](https://github.com/TanStack/ai/pull/293))
+
+  Tools can now emit custom events during execution via `dispatchEvent()`. Custom events are streamed to clients as `custom_event` stream chunks and surfaced through the client chat hook's `onCustomEvent` callback. This enables tools to send progress updates, intermediate results, or any structured data back to the UI during long-running operations.
+
+- Updated dependencies [[`5aa6acc`](https://github.com/TanStack/ai/commit/5aa6acc1a4faea5346f750322e80984abf2d7059), [`1f800aa`](https://github.com/TanStack/ai/commit/1f800aacf57081f37a075bc8d08ff397cb33cbe9)]:
+  - @tanstack/ai@0.6.0
+  - @tanstack/ai-client@0.5.0
+
 ## 0.5.4
 
 ### Patch Changes

diff --git a/packages/typescript/ai-react/package.json b/packages/typescript/ai-react/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-react",
-  "version": "0.5.4",
+  "version": "0.6.0",
   "description": "React hooks for TanStack AI",
   "author": "",
   "license": "MIT",

diff --git a/packages/typescript/ai-solid-ui/CHANGELOG.md b/packages/typescript/ai-solid-ui/CHANGELOG.md
@@ -1,5 +1,13 @@
 # @tanstack/ai-solid-ui
 
+## 0.5.0
+
+### Patch Changes
+
+- Updated dependencies [[`5aa6acc`](https://github.com/TanStack/ai/commit/5aa6acc1a4faea5346f750322e80984abf2d7059), [`1f800aa`](https://github.com/TanStack/ai/commit/1f800aacf57081f37a075bc8d08ff397cb33cbe9)]:
+  - @tanstack/ai-client@0.5.0
+  - @tanstack/ai-solid@0.6.0
+
 ## 0.5.1
 
 ### Patch Changes

diff --git a/packages/typescript/ai-solid-ui/package.json b/packages/typescript/ai-solid-ui/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-solid-ui",
-  "version": "0.5.1",
+  "version": "0.5.0",
   "description": "Headless Solid components for building AI chat interfaces",
   "module": "./src/index.ts",
   "types": "./src/index.ts",