Arduino Arduino CLI firmware
currentThe Arduino Arduino CLI is tracked under makers & open firmware. Its latest firmware, 1.5.1, shipped on Jun 5, 2026.
- Latest firmware
- 1.5.1
- Released
- Category
- Makers & open firmware
- Last checked
How to update the Arduino Arduino CLI
- Open the Arduino IDE, then Tools, then Board, then Boards Manager and update the core for your board.
- For the UNO R4's connectivity firmware, use the Firmware Updater under Tools.
- Keep the board connected by USB throughout.
Always download firmware from the manufacturer or project itself. Firmwarely links out; it never hosts firmware.
What changed
Changelog 92b5682a5 fix: gRPC Monitor call does not emit applied_settings response (#3191) eb15e205e Do not print stray "Running post-install/pre-uninstall script" messages (#3194) 10f119920 fix(compiler): Sketch may be wrongly considered up-to-date (-› not recompiled when needed) (#3206) fb6bae…
Version history
| 1.5.1 |
FAQ
What is the latest firmware for the Arduino Arduino CLI?
Version 1.5.1, released Jun 5, 2026. This page is refreshed every 30 minutes from the manufacturer's release page.
How do I update the Arduino Arduino CLI?
See the step-by-step above. Follow the project's release page for the flashing or OTA procedure. Many maker devices update from a web installer or the project's desktop app.
How does Firmwarely know when there's a new version?
Every 30 minutes we read the manufacturer's official release page for the Arduino Arduino CLI and record the version, date and changelog. Subscribers watching this device get one email a day when it changed.
Is this an official Arduino page?
No. Firmwarely is independent. Device and brand names belong to their manufacturers; always download firmware from the official source.
Get alerts for Arduino Arduino CLI
One email when a new or critical firmware ships. Free for up to 3 devices.