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github-actions[bot] edited this page Oct 19, 2025 · 1 revision

painlessMesh v1.7.6 Release Checklist

Release Date: October 19, 2025
Release Type: Critical Bug Fix
Git Commit: c17384a
Git Tag: v1.7.6

✅ Completed Steps

Code Implementation

  • Removed src/painlessmesh/scheduler_queue.hpp (30 lines deleted)
  • Removed src/painlessmesh/scheduler_queue.cpp (70 lines deleted)
  • Updated src/painlessmesh/mesh.hpp (removed queue includes and initialization)
  • Created comprehensive unit test test/catch/catch_scheduler_queue_removal.cpp (200+ lines)

Version Updates

  • Updated library.json version: 1.7.5 → 1.7.6
  • Updated library.properties version: 1.7.5 → 1.7.6
  • Updated package.json version: 1.7.5 → 1.7.6

Documentation

  • Updated CHANGELOG.md with v1.7.6 section
  • Created docs/releases/RELEASE_PLAN_v1.7.6.md (850+ lines)
  • Created docs/releases/RELEASE_SUMMARY_v1.7.6.md (comprehensive release notes)
  • Created docs/troubleshooting/PAINLESSMESH_V1.7.4_COMPILATION_ISSUES.md (historical reference)
  • Updated README.md with v1.7.6 information

Git Operations

  • Staged all changes (git add -A)
  • Committed with detailed message (commit c17384a)
  • Created annotated tag v1.7.6
  • Pushed to GitHub (git push origin main --tags)

Statistics

  • Files Changed: 12 files
  • Insertions: +2046 lines
  • Deletions: -131 lines
  • Net: +1915 lines (mostly documentation and tests)

🔄 Manual Steps Required

1. Create GitHub Release

URL: https://github.com/Alteriom/painlessMesh/releases/new

Release Details:

  • Tag: v1.7.6 (select existing tag)
  • Title: v1.7.6 - Critical Compilation Fix
  • Set as latest release: ✅ Checked

Release Description Template:

# v1.7.6 - Critical Compilation Fix

🚨 **URGENT**: If you are using v1.7.4 or v1.7.5, upgrade immediately. Those versions fail to compile.

## What's Fixed

✅ **Compilation Failure** - Fixed "_task_request_t was not declared" error  
✅ **ESP32 Support** - All ESP32 builds now compile successfully  
✅ **ESP8266 Support** - All ESP8266 builds now compile successfully  
✅ **FreeRTOS Stability** - Maintained ~85% crash reduction on ESP32  

## What Changed

This release removes the thread-safe scheduler queue that was causing compilation failures:

- **Removed**: `scheduler_queue.hpp` and `scheduler_queue.cpp`
- **Simplified**: `mesh.hpp` initialization code
- **Maintained**: Semaphore timeout fix for FreeRTOS crash protection

## Why This Fix

The thread-safe scheduler queue required `_TASK_THREAD_SAFE` macro, but:
- This macro conflicts with `_TASK_STD_FUNCTION` in TaskScheduler v4.0.x
- painlessMesh **requires** `_TASK_STD_FUNCTION` for lambda callbacks
- The queue code was disabled but still trying to compile
- Result: Type definitions were missing, causing compilation errors

## Upgrade Instructions

### PlatformIO
```ini
[env:your_board]
lib_deps =
    https://github.com/Alteriom/painlessMesh.git#v1.7.6

Arduino IDE

Update through Library Manager: AlteriomPainlessMesh v1.7.6

NPM

npm update @alteriom/painlessmesh

Performance

  • ✅ ESP32 crash rate: ~5-8% (down from 30-40%)
  • ✅ Crash reduction: ~85% via semaphore timeout increase
  • ✅ No performance impact vs v1.7.2
  • ✅ Full lambda and std::function support maintained

Testing

  • ✅ 710+ unit tests passing
  • ✅ All 19 examples compile successfully
  • ✅ ESP32 and ESP8266 platforms verified
  • ✅ CI/CD pipeline passing

Breaking Changes

None - This is a pure bug fix release.

Known Limitations

  • ESP32 crash protection is ~85% effective (not 95-98% as originally targeted)
  • Thread-safe scheduler queue feature removed (may return in v1.8.0)
  • Requires TaskScheduler v4.1+ for future thread-safe re-implementation

Documentation

📋 Complete Release Notes
📖 CHANGELOG
📋 Implementation Plan
🐛 Compilation Issues (Resolved)

Release Date: October 19, 2025
Build Status: ✅ All tests passing
Upgrade Priority: 🚨 CRITICAL for v1.7.4/v1.7.5 users


**Action:** Copy the template above and create the release on GitHub.

---

### 2. Publish NPM Package

**Prerequisites:**
- NPM account with publish access
- Logged in to NPM (`npm whoami` to verify)

**Commands:**

```bash
# 1. Verify login
npm whoami

# 2. (Optional) Test package creation
npm pack

# 3. Publish to NPM
npm publish --access public

# 4. Verify publication
npm view @alteriom/painlessmesh version
# Should show: 1.7.6

NPM Package URL: https://www.npmjs.com/package/@alteriom/painlessmesh

Checklist:

  • Logged in to NPM
  • Package built successfully
  • Published to NPM registry
  • Version 1.7.6 visible on npmjs.com
  • Installation tested: npm install @alteriom/painlessmesh@1.7.6

3. Monitor PlatformIO Registry

URL: https://registry.platformio.org/libraries/sparck75/AlteriomPainlessMesh

Update Process:

  • Automatic: PlatformIO scans GitHub releases every 24 hours
  • Expected: v1.7.6 should appear within 24 hours of GitHub Release
  • Manual Trigger (if needed): pio pkg publish .

Checklist:

  • Wait 24 hours after GitHub Release
  • Verify v1.7.6 appears on registry
  • Test installation: pio pkg install --library "AlteriomPainlessMesh@1.7.6"
  • Verify example compilation

4. Monitor Arduino Library Manager

Update Process:

  • Automatic: Arduino syncs from library.properties in GitHub releases
  • Expected: v1.7.6 should appear within 24-48 hours
  • No manual action required

Verification:

  • Wait 24-48 hours after GitHub Release
  • Open Arduino IDE Library Manager
  • Search for "AlteriomPainlessMesh"
  • Verify v1.7.6 is available
  • Test installation and example compilation

📊 Success Criteria

Immediate (Within 1 Hour)

  • GitHub Release published successfully
  • NPM package published and available
  • CI/CD pipeline status: Green

First 24 Hours

  • Zero compilation error reports on GitHub Issues
  • PlatformIO registry updated to v1.7.6
  • Positive community feedback (if any)
  • No critical bugs discovered

First Week

  • Arduino Library Manager synced to v1.7.6
  • ESP32 crash reports show ~5-8% rate (not increasing)
  • No regression reports from users
  • CI/CD continues to pass

🔍 Monitoring Tasks

GitHub Issues

Monitor for:

  • Compilation errors (should be zero)
  • Runtime crashes (should be ~5-8% on ESP32)
  • Breaking API changes (should be none)
  • Documentation issues

CI/CD Pipeline

Check that:

  • All tests continue to pass
  • ESP32 examples compile
  • ESP8266 examples compile
  • No new lint errors

Community Feedback

Watch for:

  • User reports of successful upgrades
  • Questions about migration
  • Feature requests for v1.8.0
  • Reports of improved stability

🚨 Rollback Plan

If critical issues are discovered:

Immediate (Within 1 Hour)

  1. Advise users to downgrade:

    lib_deps = https://github.com/Alteriom/painlessMesh.git#v1.7.2

  2. Mark GitHub Release as pre-release (if possible)

Short-term (Within 24 Hours)

  1. Revert commit:

    git revert c17384a
git push origin main

  2. Delete tag:

    git tag -d v1.7.6
git push origin :refs/tags/v1.7.6

  3. Unpublish NPM package (if within 72 hours):

    npm unpublish @alteriom/painlessmesh@1.7.6

Medium-term (Within 1 Week)

  1. Investigate root cause of rollback
  2. Prepare hotfix v1.7.7
  3. Re-test thoroughly
  4. Re-release with fixes

Rollback Criteria:

  • Compilation failures reported
  • Critical functionality broken
  • Crash rate increases significantly
  • Data corruption or security issues

📝 Communication

GitHub Discussions (Optional)

Post announcement in Discussions:

Title: v1.7.6 Released - Critical Compilation Fix

Body:

Hi everyone! 👋

We've just released **v1.7.6**, which is a critical emergency fix for compilation issues in v1.7.4 and v1.7.5.

## 🚨 If you're on v1.7.4 or v1.7.5

**Please upgrade immediately.** Those versions fail to compile with the error:

'_task_request_t' was not declared


## ✅ What's Fixed

- ESP32 and ESP8266 now compile successfully
- Removed problematic thread-safe queue code
- Maintained ~85% FreeRTOS crash reduction
- Zero breaking changes to API

## 📦 How to Upgrade

**PlatformIO:**
```ini
lib_deps = https://github.com/Alteriom/painlessMesh.git#v1.7.6

Arduino IDE: Update through Library Manager

NPM: npm update @alteriom/painlessmesh

📚 Documentation

Thanks for your patience, and apologies for the broken releases! 🙏


---

## 📋 Post-Release Checklist

### Day 1 (October 19, 2025)
- [ ] GitHub Release created
- [ ] NPM package published
- [ ] CI/CD verified green
- [ ] No immediate issues reported

### Day 2 (October 20, 2025)
- [ ] PlatformIO registry check
- [ ] GitHub Issues monitored
- [ ] Community feedback reviewed

### Week 1 (October 19-26, 2025)
- [ ] Arduino Library Manager verified
- [ ] No critical bugs reported
- [ ] Crash rate statistics collected
- [ ] Plan v1.8.0 roadmap

---

## 🎯 Next Steps

### Immediate
1. Create GitHub Release (use template above)
2. Publish NPM package
3. Monitor CI/CD pipeline

### Future (v1.8.0 Planning)
1. Monitor TaskScheduler updates for v4.1+
2. Collect user feedback on v1.7.6
3. Evaluate thread-safe queue re-implementation
4. Consider alternative FreeRTOS fixes

---

**Release Manager:** Alteriom Development Team  
**Completion Status:** Automated steps complete, manual steps pending  
**Estimated Time for Manual Steps:** 30 minutes  
**Priority:** HIGH - Users are waiting for working version

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