PostHog · robbie-c · Dec 8, 2025 · Dec 8, 2025 · Dec 8, 2025 · Dec 8, 2025
diff --git a/.github/actions/setup/action.yaml b/.github/actions/setup/action.yaml
@@ -36,7 +36,7 @@ runs:
     # Ensure latest npm with OIDC support (npm 11.5.1+)
     - name: Ensure modern npm (OIDC support)
       shell: bash
-      run: npm install -g [email protected]
+      run: sudo npm install -g [email protected]
 
     - uses: actions/cache@v4
       id: pnpm-cache

diff --git a/.github/workflows/minimum-version-ts-check.yaml b/.github/workflows/minimum-version-ts-check.yaml
@@ -13,7 +13,13 @@ jobs:
     strategy:
       matrix:
         node-version: [20, 22, 24]
-        typescript-version: ["4.7.2", "5.5.4", "latest"]
+        typescript-version:
+          - version: "4.7.4"
+            extra-flags: "--moduleResolution node"
+          - version: "5.9.2"
+            extra-flags: "--moduleResolution node"
+          - version: "6.0.0-dev.20251204"
+            extra-flags: "--ignoreConfig"
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -25,12 +31,14 @@ jobs:
 
       # once its built we can see if we can use it on the forced version
       - name: Override TypeScript version
-        run: pnpm add typescript@${{ matrix.typescript-version }} --save-dev
-        working-directory: packages/browser
+        env:
+          TS_VERSION: ${{ matrix.typescript-version.version }}
+        run: yq -i '.catalog.typescript = strenv(TS_VERSION)' pnpm-workspace.yaml && pnpm install --no-frozen-lockfile
 
       - name: Test TypeScript Import
         run: |
-          rm test.ts || true
-          echo "import { posthog } from './dist/module'; console.log(posthog);" > test.ts
-          pnpm exec tsc test.ts --strict --target es2017 --module commonjs --moduleResolution node --noEmit --skipLibCheck
+          rm ci-ts-file.js || true
+          pnpm exec tsc --version
+          pnpm exec tsc ci-ts-file.ts --strict --target es2017 --module commonjs --skipLibCheck ${{ matrix.typescript-version.extra-flags }}
+          node ci-ts-file.js
         working-directory: packages/browser
diff --git a/packages/ai/jest.config.js b/packages/ai/jest.config.js
@@ -4,4 +4,7 @@ module.exports = {
   coverageDirectory: 'coverage',
   silent: true,
   verbose: false,
+  transformIgnorePatterns: [
+    'node_modules/(?:(?=\\.pnpm/).pnpm/[^/]+/node_modules/|(?!\\.pnpm/))(?!(p-queue|p-timeout|eventemitter3)/)',
+  ],
 }
@@ -43,14 +43,14 @@
   },
   "dependencies": {
     "@ai-sdk/provider": "^2.0.0",
-    "@anthropic-ai/sdk": "^0.67.0",
-    "@google/genai": "^1.29.0",
-    "@langchain/core": "^1.0.0",
-    "ai": "^5.0.87",
-    "langchain": "^1.0.0",
-    "openai": "^6.8.1",
-    "uuid": "^11.0.5",
-    "zod": "^4.1.8"
+    "@anthropic-ai/sdk": "^0.67.1",
+    "@google/genai": "^1.31.0",
+    "@langchain/core": "^1.1.3",
+    "ai": "^5.0.107",
+    "langchain": "^1.1.4",
+    "openai": "^6.10.0",
+    "uuid": "^11.1.0",
+    "zod": "^4.1.13"
   },
   "peerDependencies": {
     "posthog-node": "^5.0.0"

diff --git a/packages/browser/.gitignore b/packages/browser/.gitignore
@@ -37,3 +37,5 @@ cypress/downloads/downloads.html
 
 react/sync.js
 react/dist
+
+ci-ts-file.js
diff --git a/packages/browser/ci-ts-file.ts b/packages/browser/ci-ts-file.ts
@@ -0,0 +1,6 @@
+/* eslint-disable */
+import { posthog } from './dist/module'
+import * as ts from 'typescript'
+
+console.log(posthog)
+console.log(ts.version)
diff --git a/packages/browser/jest.config.js b/packages/browser/jest.config.js
@@ -8,17 +8,11 @@ module.exports = {
     prettierPath: null,
     moduleNameMapper: {
         '\\.css$': 'identity-obj-proxy',
-        '^preact$': '<rootDir>/../../node_modules/.pnpm/[email protected]/node_modules/preact/dist/preact.js',
-        '^preact/hooks$': '<rootDir>/../../node_modules/.pnpm/[email protected]/node_modules/preact/hooks/dist/hooks.js',
-        '^preact/jsx-runtime$':
-            '<rootDir>/../../node_modules/.pnpm/[email protected]/node_modules/preact/jsx-runtime/dist/jsxRuntime.js',
-        '^preact/test-utils$':
-            '<rootDir>/../../node_modules/.pnpm/[email protected]/node_modules/preact/test-utils/dist/testUtils.js',
-        '^@testing-library/preact$':
-            '<rootDir>/../../node_modules/.pnpm/@[email protected][email protected]/node_modules/@testing-library/preact/dist/cjs/index.js',
     },
     transform: {
         '^.+\\.(js|jsx|ts|tsx|mjs)$': 'babel-jest',
     },
-    transformIgnorePatterns: ['node_modules/(?!(@testing-library/preact|preact))'],
+    transformIgnorePatterns: [
+        'node_modules/(?:(?=\\.pnpm/).pnpm/[^/]+/node_modules/|(?!\\.pnpm/))(?!(sinon|@testing-library/preact|preact|until-async)/)',
+    ],
 }
diff --git a/packages/browser/package.json b/packages/browser/package.json
@@ -50,9 +50,9 @@
     ],
     "dependencies": {
         "@posthog/core": "workspace:*",
-        "core-js": "^3.38.1",
+        "core-js": "^3.47.0",
         "fflate": "^0.4.8",
-        "preact": "^10.19.3",
+        "preact": "^10.28.0",
         "web-vitals": "^4.2.4"
     },
     "devDependencies": {
@@ -64,17 +64,17 @@
         "@babel/preset-env": "catalog:",
         "@babel/preset-typescript": "catalog:",
         "@jest/globals": "^29.7.0",
-        "@playwright/test": "^1.52.0",
+        "@playwright/test": "^1.57.0",
         "@posthog-tooling/rollup-utils": "workspace:*",
         "@posthog/rrweb-plugin-console-record": "^0.0.33",
         "@posthog/rrweb-record": "^0.0.33",
         "@posthog/rrweb-types": "^0.0.33",
-        "@rollup/plugin-babel": "^6.0.4",
-        "@rollup/plugin-commonjs": "^28.0.6",
+        "@rollup/plugin-babel": "^6.1.0",
+        "@rollup/plugin-commonjs": "^28.0.9",
         "@rollup/plugin-json": "^6.1.0",
-        "@rollup/plugin-node-resolve": "^16.0.1",
+        "@rollup/plugin-node-resolve": "^16.0.3",
         "@rollup/plugin-terser": "^0.4.4",
-        "@rollup/plugin-typescript": "^12.1.4",
+        "@rollup/plugin-typescript": "^12.3.0",
         "@rrweb/record": "2.0.0-alpha.17",
         "@rrweb/rrweb-plugin-console-record": "2.0.0-alpha.17",
         "@rrweb/types": "2.0.0-alpha.17",
@@ -84,38 +84,38 @@
         "@testing-library/preact": "catalog:",
         "@types/dotenv": "^8.2.3",
         "@types/jest": "catalog:",
-        "@types/node": "^22.5.0",
-        "@types/sinon": "^17.0.1",
+        "@types/node": "^22.19.1",
+        "@types/sinon": "^21.0.0",
         "@types/web": "^0.0.222",
         "babel-jest": "^29.7.0",
-        "browserslist": "^4.24.5",
-        "compare-versions": "^6.1.0",
-        "cssnano": "^7.0.7",
+        "browserslist": "^4.28.1",
+        "compare-versions": "^6.1.1",
+        "cssnano": "^7.1.2",
         "date-fns": "^3.6.0",
-        "dotenv": "^17.2.0",
+        "dotenv": "^17.2.3",
         "expect": "^29.7.0",
-        "fast-check": "^2.17.0",
+        "fast-check": "^2.25.0",
         "http-server": "14.1.1",
-        "husky": "^8.0.1",
+        "husky": "^8.0.3",
         "identity-obj-proxy": "^3.0.0",
         "jest": "catalog:",
         "jest-environment-jsdom": "catalog:",
         "jsdom": "16.7.0",
         "jsdom-global": "3.0.2",
         "localStorage": "1.0.4",
-        "msw": "^1.3.3",
-        "node-fetch": "^2.6.11",
-        "postcss": "^8.5.3",
-        "postcss-import": "^16.1.0",
-        "postcss-nesting": "^13.0.1",
+        "msw": "^1.3.5",
+        "node-fetch": "^2.7.0",
+        "postcss": "^8.5.6",
+        "postcss-import": "^16.1.1",
+        "postcss-nesting": "^13.0.2",
         "posthog-js": "link:",
-        "preact-render-to-string": "^6.3.1",
+        "preact-render-to-string": "^6.6.3",
         "rollup": "catalog:",
-        "rollup-plugin-dts": "^6.2.3",
+        "rollup-plugin-dts": "^6.3.0",
         "rollup-plugin-postcss": "^4.0.2",
-        "rollup-plugin-visualizer": "^6.0.3",
-        "sinon": "9.0.2",
-        "testcafe": "^1.20.1",
+        "rollup-plugin-visualizer": "^6.0.5",
+        "sinon": "^21.0.0",
+        "testcafe": "^3.7.2",
         "testcafe-browser-provider-browserstack": "^1.15.2",
         "ts-node": "^10.9.2",
         "tslib": "catalog:",

diff --git a/packages/browser/src/__tests__/loader.test.ts b/packages/browser/src/__tests__/loader.test.ts
@@ -8,7 +8,7 @@
 import { PostHog } from '../posthog-core'
 import { defaultPostHog } from './helpers/posthog-instance'
 
-import sinon from 'sinon'
+import * as sinon from 'sinon'
 import { assignableWindow, window } from '../utils/globals'
 
 describe(`Module-based loader in Node env`, () => {

diff --git a/packages/browser/src/__tests__/setup.js b/packages/browser/src/__tests__/setup.js
@@ -1,3 +1,5 @@
+import { TextDecoder, TextEncoder } from 'util'
+
 beforeEach(() => {
     // eslint-disable-next-line no-console
     console.error = (...args) => {
@@ -7,4 +9,7 @@ beforeEach(() => {
     console.warn = (...args) => {
         throw new Error(`Unexpected console.warn: ${args}`)
     }
+
+    global.TextEncoder = TextEncoder
+    global.TextDecoder = TextDecoder
 })
@@ -34,11 +34,11 @@
   },
   "devDependencies": {
     "@types/node": "^20.0.0",
-    "nuxt": "^4.1.2",
-    "@nuxt/devtools": "^2.6.5",
+    "nuxt": "^4.2.1",
+    "@nuxt/devtools": "^2.7.0",
     "@nuxt/module-builder": "^1.0.2",
-    "@nuxt/schema": "^4.1.2",
-    "@nuxt/eslint-config": "^1.9.0",
+    "@nuxt/schema": "^4.2.1",
+    "@nuxt/eslint-config": "^1.11.0",
     "eslint": "^9.37.0"
   }
 }
Original file line number	Diff line number	Diff line change
Expand Up		@@ -37,3 +37,5 @@ cypress/downloads/downloads.html

		react/sync.js
		react/dist

		ci-ts-file.js