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Release Roadmap and Management
Ricardo F Tafas Jr edited this page Sep 10, 2025
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- All dates are subject to change.
- ESP-IDF information here is a convenience and not the formal source. Check ESP-IDF Project.
| Milestone | 3.3.1 | 3.4 | 4.0 | 4.1 | 4.2 |
|---|---|---|---|---|---|
| Planning | 27/08/2025 | 05/11/2025 | 18/03/2026 | ||
| 1st Release Candidate (RC1) | - | 12/11/2025 | 25/03/2026 | ||
| 2nd Release Candidate (RC2) | - | 26/11/2025 | 11/04/2026 | ||
| Release | 17/09/2025 | 10/12/2025 | 25/04/2026 | Jun/26 | Sep/26 |
| ESP-IDF Base | 5.5.1 | 5.x | 6.0 |
Format: dd/mm/yyyy
Arduino is built on top of ESP-IDF. This is important to realize that ESP-IDF release schedule changes affect and impact Arduino for ESP32 Releases (both the core and the component). It is important to always evaluate ESP-IDF Plans.
- Planning: preparations, evaluation if the dates can be kept. Project is branched from master. Usually 1 week.
- RC1: First release candidate, will only accept critical bugfixes. Feature Freeze. Usually 2 weeks.
- RC2: Second release candidates, will only accept blocking bugfixes. Usually 2 weeks.
- Release: Date of Release tag.
- Releases follow the format: Major-Minor-Fixes (x.y.z)
- Major: ESP-IDF major update or breaking changes (along minor changes, new features and fixes).
- Minor: ESP-IDF minor update, addition of new features (along all fixes).
- Fixes: bugfixes only.
- The launch of a new Major/Minor will replace the previous release.
- Arduino for ESP32 Releases do not outlive the ESP-IDF they were built upon.
- Back-ports of Arduino Releases are evaluated on case by case.
- No back-ports over outdated/unsupported ESP-IDF releases.
- Arduino for ESP32 and Arduino Component for ESP-IDF follow the same release schedule.
| Release | Date | ESP-IDF |
|---|---|---|
| 3.2.0 | 26/03/2025 | 5.4 |
| 3.3.1 | 06/08/2025 | 5.5 |