End CocoaPods distribution

.github/workflows/docs.yml

@@ -28,19 +28,19 @@ jobs:
     runs-on: macos-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
 
       - name: Generate documentation
         run: ./scripts/gen_docs.sh docc-site
 
       - name: Setup Pages
-        uses: actions/configure-pages@v5
+        uses: actions/configure-pages@v6
 
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@v5
         with:
           path: docc-site
 
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v4
+        uses: actions/deploy-pages@v5

.github/workflows/main.yml

@@ -12,7 +12,6 @@ on:
       - .github/workflows/**
       - .swift-format
       - Package.swift
-      - Punycode.podspec
       - Punycode.xcodeproj/**
       - Sources/**
       - Tests/**
@@ -27,7 +26,6 @@ on:
 env:
   project_name: Punycode
   scheme: Punycode
-  podspec_name: Punycode
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
@@ -39,7 +37,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0 # Full git history is needed to get a proper list of changed files
       - name: Lint
@@ -65,13 +63,13 @@ jobs:
             name: "Test: macOS 15, Xcode 16.4"
             coverage: NO
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - name: ${{ matrix.name }}
         run: |-
           set -o pipefail && env NSUnbufferedIO=YES xcodebuild -project "${{ env.project_name }}.xcodeproj" -scheme ${{ env.scheme }} -destination "platform=macOS" -enableCodeCoverage ${{ matrix.coverage }} clean test | xcbeautify --renderer github-actions
       - name: Upload coverage to Codecov
         if: ${{ matrix.coverage == 'YES' }}
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@v7
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           fail_ci_if_error: true
@@ -83,7 +81,7 @@ jobs:
     runs-on: macos-26
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - name: Catalyst
         run: set -o pipefail && env NSUnbufferedIO=YES xcodebuild -project "${{ env.project_name }}.xcodeproj" -scheme ${{ env.scheme }} -destination "platform=macOS,variant=Mac Catalyst" CODE_SIGNING_ALLOWED=NO CODE_SIGNING_REQUIRED=NO clean test 2>&1 | xcbeautify --renderer github-actions
     needs: lint_code
@@ -134,7 +132,7 @@ jobs:
             runsOn: macos-26
             name: "Test: visionOS, Xcode 26"
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - name: ${{ matrix.name }}
         run: |
           set -o pipefail
@@ -163,7 +161,7 @@ jobs:
           - runsOn: macos-15
             name: "SPM: macOS 15, Xcode 16.4"
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - name: Test SPM
         run: swift test -c debug 2>&1 | xcbeautify --renderer github-actions
     needs: [test_macOS, test_Catalyst, test_simulators]
@@ -174,47 +172,23 @@ jobs:
     timeout-minutes: 10
     container: swift:6.2
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - name: Test SPM
         run: swift test -c debug
     needs: [test_macOS, test_Catalyst, test_simulators]
 
   ### Carthage builds are no longer verified by CI (Carthage is in maintenance mode;
   ### compatibility is kept on a best-effort basis via the Xcode project).
-  ### CocoaPods linting is reduced to macOS/iOS Release: the trunk becomes read-only
-  ### on 2026-12-02 and this job will be removed after that date.
-  lint_cocoapods:
-    name: "Pods: ${{ matrix.platform }}, ${{ matrix.configuration }}"
-    runs-on: macos-26
-    strategy:
-      fail-fast: true
-      matrix:
-        platform: [macos, ios]
-        configuration: [Release]
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Pod lib lint
-        run: |
-          pod lib lint --verbose \
-            --configuration=${{ matrix.configuration }} \
-            --platforms=${{ matrix.platform }} \
-            ${{ env.podspec_name }}.podspec
-      - name: Pod lib lint - Use Static Frameworks
-        run: |
-          pod lib lint --verbose --use-static-frameworks \
-            --configuration=${{ matrix.configuration }} \
-            --platforms=${{ matrix.platform }} \
-            ${{ env.podspec_name }}.podspec
-    needs: SPM
+  ### CocoaPods distribution ended with 4.0.0 (the trunk becomes read-only on
+  ### 2026-12-02); 3.0.0 is the last version published as a pod.
 
   ### Aggregate gate used as the sole required status check on main.
   ### Matrix job names change with Xcode versions; this name must stay stable.
   ci_success:
     name: CI Success
     runs-on: ubuntu-latest
     if: always()
-    needs: [lint_code, test_macOS, test_Catalyst, test_simulators, SPM, SPM_linux, lint_cocoapods]
+    needs: [lint_code, test_macOS, test_Catalyst, test_simulators, SPM, SPM_linux]
     steps:
       - name: Check all jobs succeeded
         run: |

.github/workflows/release.yml

@@ -1,5 +1,4 @@
-# Publishes the library when a version tag is pushed: creates a GitHub Release
-# and pushes to CocoaPods trunk.
+# Publishes the library when a version tag is pushed: creates a GitHub Release.
 # Tags are immutable: pushing a tag for a version that is already published fails
 # instead of replacing the existing release. Bump the version and tag again instead.
 
@@ -12,15 +11,14 @@ on:
 
 env:
   project_name: Punycode
-  podspec_name: Punycode
 
 jobs:
   verify:
     name: Verify tag matches project version
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
 
       - name: Verify tag matches project version
         run: |
@@ -40,7 +38,7 @@ jobs:
       contents: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
 
       - name: Extract release notes from CHANGELOG.md
         run: |
@@ -64,23 +62,3 @@ jobs:
             echo "No CHANGELOG section for ${GITHUB_REF_NAME}; falling back to generated notes."
             gh release create "${GITHUB_REF_NAME}" --title "${GITHUB_REF_NAME}" --generate-notes --verify-tag
           fi
-
-  publish_cocoapods:
-    name: Publish to CocoaPods
-    runs-on: macos-latest
-    needs: verify
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Publish to CocoaPods trunk
-        env:
-          COCOAPODS_TRUNK_TOKEN: ${{ secrets.COCOAPODS_TRUNK_TOKEN }}
-        run: |
-          set -eo pipefail
-          ### Never republish an existing version; released versions are immutable.
-          if pod trunk info ${{ env.podspec_name }} | grep -q "${GITHUB_REF_NAME}"; then
-            echo "Error: Version ${GITHUB_REF_NAME} already exists on CocoaPods trunk. Bump the version instead of republishing."
-            exit 1
-          fi
-          pod trunk push ${{ env.podspec_name }}.podspec --allow-warnings

.mise.toml

@@ -3,7 +3,4 @@ python = "3.11.9"
 ruby = "3.4.10"
 
 [env]
-_.python.venv = ".venv"
-EXPANDED_CODE_SIGN_IDENTITY=""
-EXPANDED_CODE_SIGN_IDENTITY_NAME=""
-EXPANDED_PROVISIONING_PROFILE=""
+_.python.venv = ".venv"

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project are 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).
 
+## [Unreleased]
+
+### Removed
+
+- CocoaPods publishing: 3.0.0 is the last version available as the `Punycode` pod. 4.0.0 and later are distributed via Swift Package Manager (and Carthage on a best-effort basis). The podspec, the pod lint CI job, and the trunk push in the release workflow are removed.
+
 ## [4.0.0] - 2026-08-18
 
 ### Added
@@ -82,6 +88,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Initial release: Punycode (RFC 3492) encode/decode and IDNA encode/decode via `String` / `Substring` extensions.
 
+[Unreleased]: https://github.com/futamura/PunycodeSwift/compare/4.0.0...HEAD
 [4.0.0]: https://github.com/futamura/PunycodeSwift/compare/3.0.0...4.0.0
 [3.0.0]: https://github.com/futamura/PunycodeSwift/compare/2.1.1...3.0.0
 [2.1.1]: https://github.com/futamura/PunycodeSwift/compare/2.1.0...2.1.1

CLAUDE.md

@@ -4,7 +4,7 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 
 ## Overview
 
-PunycodeSwift — a pure Swift library (no dependencies) that encodes/decodes Punycode (RFC 3492) and IDNA hostnames via `String` / `Substring` extensions. Runs on all Apple platforms and Linux. Distributed primarily via SPM. Carthage compatibility is best-effort (not CI-verified); CocoaPods distribution (pod name: `Punycode`) ends when the trunk becomes read-only on 2026-12-02.
+PunycodeSwift — a pure Swift library (no dependencies) that encodes/decodes Punycode (RFC 3492) and IDNA hostnames via `String` / `Substring` extensions. Runs on all Apple platforms and Linux. Distributed via SPM. Carthage compatibility is best-effort (not CI-verified); CocoaPods distribution has ended (3.0.0 is the last version published under the pod name `Punycode`).
 
 ## Commands
 
@@ -24,10 +24,9 @@ bundle exec fastlane tests            # xcodebuild tests on all platforms (macOS
 bundle exec fastlane lint_swift       # swift-format lint
 bundle exec fastlane build_spm        # swift build + test
 bundle exec fastlane build_carthage   # Carthage builds per platform
-bundle exec fastlane lint_cocoapods   # pod lib lint
 bundle exec fastlane gen_docs         # DocC static site into docc-site/ (via scripts/gen_docs.sh)
-bundle exec fastlane set_version      # prompt for version; syncs pbxproj + podspec
-bundle exec fastlane bump_version     # patch/minor/major bump; same sync
+bundle exec fastlane set_version      # prompt for version; sets MARKETING_VERSION in the pbxproj
+bundle exec fastlane bump_version     # patch/minor/major bump; same effect
 
 # Interactive job menu (fzf)
 ./run.sh
@@ -51,11 +50,10 @@ Tests live in `Tests/PunycodeTests.swift` (single XCTest file; SPM test target n
 
 ## Versioning and release
 
-- Single source of truth for the version: `MARKETING_VERSION` in `Punycode.xcodeproj/project.pbxproj`. Fastlane and CI both read it. Never edit versions by hand — use `fastlane set_version` / `bump_version`, which also sync `Punycode.podspec`.
+- Single source of truth for the version: `MARKETING_VERSION` in `Punycode.xcodeproj/project.pbxproj`. Fastlane and CI both read it. Never edit versions by hand — use `fastlane set_version` / `bump_version`.
 - Branch flow: work on `develop`, PR into `main`.
-- CI (`.github/workflows/main.yml`) runs on push and pull request to `main`/`develop`: lint → per-platform xcodebuild tests (simulator devices resolved at runtime via `simctl`) → SPM (macOS + Linux via the official Swift container) → pod lib lint. It does not release. Carthage builds are not CI-verified.
+- CI (`.github/workflows/main.yml`) runs on push and pull request to `main`/`develop`: lint → per-platform xcodebuild tests (simulator devices resolved at runtime via `simctl`) → SPM (macOS + Linux via the official Swift container). It does not release. Carthage builds are not CI-verified.
 - Documentation (`.github/workflows/docs.yml`) builds the DocC site with `scripts/gen_docs.sh` (symbolgraph-extract with `-emit-extension-block-symbols` — required because the whole public API is extensions on String/Substring — then `docc convert`) and deploys it to GitHub Pages on every push to `main`. The site is not tracked in git; `docs/` no longer exists.
-- After 2026-12-02 (CocoaPods trunk read-only): remove the `lint_cocoapods` job from `main.yml` and the pod push from `release.yml`.
-- Releasing is a separate, explicit step: push a bare version tag (e.g. `3.0.1`) matching `MARKETING_VERSION`. `.github/workflows/release.yml` then verifies the tag against the project version, creates a GitHub Release (notes taken from the tag's `CHANGELOG.md` section, falling back to generated notes), and pushes to CocoaPods trunk. Use `./run.sh` → "Github - Update tag" to create the tag.
-- Version tags are immutable: both the release workflow and `run.sh` fail if the tag or trunk version already exists. To re-release, bump the version — never delete/re-push a tag.
+- Releasing is a separate, explicit step: push a bare version tag (e.g. `4.0.1`) matching `MARKETING_VERSION`. `.github/workflows/release.yml` then verifies the tag against the project version and creates a GitHub Release (notes taken from the tag's `CHANGELOG.md` section, falling back to generated notes). Use `./run.sh` → "Github - Update tag" to create the tag.
+- Version tags are immutable: both the release workflow and `run.sh` fail if the tag already exists. To re-release, bump the version — never delete/re-push a tag.
 - Keep `CHANGELOG.md` (Keep a Changelog format) current: user-facing changes go under **Unreleased**; when releasing, rename that section to the new version with the date and add its compare link. The release workflow extracts this section for the GitHub Release notes.

CONTRIBUTING.md

@@ -51,7 +51,7 @@ Run this before pushing; the `Lint Code` job fails on violations.
 
 ## Versioning and releases
 
-Releases are handled by maintainers. The version's single source of truth is `MARKETING_VERSION` in `Punycode.xcodeproj/project.pbxproj`; it is synced to the podspec and docs via `bundle exec fastlane set_version` / `bump_version`. Do not edit version numbers by hand in a pull request.
+Releases are handled by maintainers. The version's single source of truth is `MARKETING_VERSION` in `Punycode.xcodeproj/project.pbxproj`; set it via `bundle exec fastlane set_version` / `bump_version`. Do not edit version numbers by hand in a pull request.
 
 ## Reporting issues
 

Gemfile

@@ -4,9 +4,6 @@ source "https://rubygems.org"
 
 git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
 
-gem "cocoapods"
-gem "cocoapods-deintegrate"
-gem "cocoapods-clean"
 gem "fastlane"
 gem "slather"
 gem "xcpretty"