.editorconfig

@@ -7,15 +7,9 @@ charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
 
-[{package.json,.*rc,*.yml}]
+[{*.json,.*rc,*.yml}]
 indent_style = space
 indent_size = 2
 
 [*.md]
 trim_trailing_whitespace = false
-
-# Uglify (or some other tool) always rewrites this file
-# without a final newline on build, so disabling that
-# editorconfig feature specifically for this file
-[mangle.json,**/mangle.json]
-insert_final_newline = false

.eslintignore

@@ -1,3 +1,2 @@
-test/fixtures
-test/ts/
-*.ts
+dist
+benchmarks

.github/CODE_OF_CONDUCT.md

@@ -0,0 +1,46 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to making participation in our project and our community a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, gender identity and expression, level of experience, nationality, personal appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment include:
+
+- Using welcoming and inclusive language
+- Being respectful of differing viewpoints and experiences
+- Gracefully accepting constructive criticism
+- Focusing on what is best for the community
+- Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+- The use of sexualized language or imagery and unwelcome sexual attention or advances
+- Trolling, insulting/derogatory comments, and personal or political attacks
+- Public or private harassment
+- Publishing others' private information, such as a physical or electronic address, without explicit permission
+- Other conduct which could reasonably be considered inappropriate in a professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces when an individual is representing the project or its community. Examples of representing a project or community include using an official project e-mail address, posting via an official social media account, or acting as an appointed representative at an online or offline event. Representation of a project may be further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at hello@preactjs.com. The project team will review and investigate all complaints, and will respond in a way that it deems appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, available at [http://contributor-covenant.org/version/1/4][version]
+
+[homepage]: http://contributor-covenant.org
+[version]: http://contributor-covenant.org/version/1/4/

.github/FUNDING.yml

@@ -1,8 +1,2 @@
-# These are supported funding model platforms
-
-github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
-patreon: # Replace with a single Patreon username
+github: [preactjs]
 open_collective: preact
-ko_fi: # Replace with a single Ko-fi username
-tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
-custom: # Replace with a single custom sponsorship URL

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,25 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+---
+
+- [ ] Check if updating to the latest Preact version resolves the issue
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+
+If possible, please provide a link to a StackBlitz/CodeSandbox/Codepen project or a GitHub repository that demonstrates the issue. You can use the following template on StackBlitz to get started: https://stackblitz.com/edit/create-preact-starter
+
+Steps to reproduce the behavior:
+
+1. Go to '...'
+2. Click on '....'
+3. See error
+
+**Expected behavior**
+What should have happened when following the steps above?

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,13 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: feature request
+assignees: ''
+---
+
+**Describe the feature you'd love to see**
+A clear and concise description of what you'd love to see added to Preact.
+
+**Additional context (optional)**
+Add any other context or screenshots about the feature request here.

.github/workflows/benchmarks.yml

@@ -0,0 +1,91 @@
+name: Benchmarks
+
+on:
+  workflow_dispatch:
+  workflow_call:
+
+jobs:
+  prepare:
+    name: Prepare environment
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    steps:
+      - name: Download locally built preact package
+        uses: actions/download-artifact@v4
+        with:
+          name: npm-package
+      - run: mv preact.tgz preact-local.tgz
+      - name: Download base package
+        uses: andrewiggins/download-base-artifact@v3
+        with:
+          artifact: npm-package
+          workflow: ci.yml
+          required: true
+      - run: mv preact.tgz preact-main.tgz
+      - name: Upload locally build & base preact package
+        uses: actions/upload-artifact@v4
+        with:
+          name: bench-environment
+          path: |
+            preact-local.tgz
+            preact-main.tgz
+
+  bench_todo:
+    name: Bench todo
+    uses: ./.github/workflows/run-bench.yml
+    needs: prepare
+    with:
+      benchmark: todo/todo
+      timeout: 10
+
+  bench_text_update:
+    name: Bench text-update
+    uses: ./.github/workflows/run-bench.yml
+    needs: prepare
+    with:
+      benchmark: text-update/text-update
+      timeout: 10
+
+  bench_many_updates:
+    name: Bench many-updates
+    uses: ./.github/workflows/run-bench.yml
+    needs: prepare
+    with:
+      benchmark: many-updates/many-updates
+      timeout: 10
+
+  bench_replace1k:
+    name: Bench replace1k
+    uses: ./.github/workflows/run-bench.yml
+    needs: prepare
+    with:
+      benchmark: table-app/replace1k
+
+  bench_update10th1k:
+    name: Bench 03_update10th1k_x16
+    uses: ./.github/workflows/run-bench.yml
+    needs: prepare
+    with:
+      benchmark: table-app/update10th1k
+
+  bench_create10k:
+    name: Bench create10k
+    uses: ./.github/workflows/run-bench.yml
+    needs: prepare
+    with:
+      benchmark: table-app/create10k
+
+  bench_hydrate1k:
+    name: Bench hydrate1k
+    uses: ./.github/workflows/run-bench.yml
+    needs: prepare
+    with:
+      benchmark: table-app/hydrate1k
+
+  bench_filter_list:
+    name: Bench filter-list
+    uses: ./.github/workflows/run-bench.yml
+    needs: prepare
+    with:
+      benchmark: filter-list/filter-list
+      timeout: 10

.github/workflows/build-test.yml

@@ -0,0 +1,56 @@
+name: Build & Test
+
+on:
+  workflow_dispatch:
+  workflow_call:
+    inputs:
+      ref:
+        description: 'Branch or tag ref to check out'
+        type: string
+        required: false
+        default: ''
+      artifact_name:
+        description: 'Name of the artifact to upload'
+        type: string
+        required: false
+        default: 'npm-package'
+
+jobs:
+  build_test:
+    name: Build & Test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ inputs.ref || '' }}
+      - uses: actions/setup-node@v4
+        with:
+          node-version-file: 'package.json'
+          cache: 'npm'
+          cache-dependency-path: '**/package-lock.json'
+      - run: npm ci
+      - name: test
+        env:
+          CI: true
+          COVERAGE: true
+          FLAKEY: false
+        # Not using `npm test` since it rebuilds source which npm ci has already done
+        run: |
+          npm run lint
+          npm run test:unit
+      - name: Coveralls GitHub Action
+        uses: coverallsapp/github-action@v2.3.0
+        timeout-minutes: 2
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          fail-on-error: false
+      - name: Package
+        # Use --ignore-scripts here to avoid re-building again before pack
+        run: |
+          npm pack --ignore-scripts
+          mv preact-*.tgz preact.tgz
+      - name: Upload npm package
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ inputs.artifact_name || 'npm-package' }}
+          path: preact.tgz

.github/workflows/ci.yml

@@ -0,0 +1,47 @@
+name: CI
+
+on:
+  workflow_dispatch:
+  pull_request:
+    branches:
+      - '**'
+  push:
+    branches:
+      - main
+      - restructure
+      - v11
+
+jobs:
+  filter_jobs:
+    name: Filter jobs
+    runs-on: ubuntu-latest
+    outputs:
+      jsChanged: ${{ steps.filter.outputs.jsChanged }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dorny/paths-filter@v3
+        id: filter
+        with:
+          # Should be kept in sync with the filter in the PR Reporter workflow
+          predicate-quantifier: 'every'
+          filters: |
+            jsChanged:
+              - '**/src/**/*.js'
+              - '!devtools/src/devtools.js'
+
+  compressed_size:
+    name: Compressed Size
+    needs: filter_jobs
+    if: ${{ needs.filter_jobs.outputs.jsChanged == 'true' }}
+    uses: ./.github/workflows/size.yml
+
+  build_test:
+    name: Build & Test
+    needs: filter_jobs
+    uses: ./.github/workflows/build-test.yml
+
+  benchmarks:
+    name: Benchmarks
+    needs: build_test
+    if: ${{ needs.filter_jobs.outputs.jsChanged == 'true' }}
+    uses: ./.github/workflows/benchmarks.yml