About UAFX firmware
- To update your pedal’s firmware, use UA Connect.
UAFX Version 2.0.2
December 22, 2025
Improved
- Fixed Bypass, PC, and CC interactions
- Fixed saved preset info subtext (Golden, Starlight, Astra)
- Fixed OX Stomp editor always showing Dyn 421 mic
- Fixed OX Stomp preset mic name subtext on initial saves
- Fixed OX Stomp incorrect Rig loaded and assigned to Rig knob after saving a copy
UAFX Version 2.0.1
November 21, 2025
Improved
- Fixed pairing issue if pedal was previously paired
- First MIDI CC now responds correctly after MIDI PC
- Preset in MIDI PC slot now retains same name when saved
- Fixed issue when using MIDI CC for tap tempo and hold
- Fixed tempo changes after MIDI PC when bypassed
UAFX Version 2.0.0
November 11, 2025
All UAFX pedals with two footswitches
- Bluetooth redesigned for faster connections and rock-solid reliability
(requires UAFX Control v3) - USB MIDI Control Change (open beta)
- Use UAFX Control app with wired USB-C connection
All Amp pedals, Starlight, Astra, Golden, OX Stomp
- USB MIDI Program Change
All Amp pedals
- Access up to four presets from footswitches
(requires UAFX Control v3)
Starlight, Astra, DelVerb, Galaxy
- USB MIDI Clock tempo sync
UAFX Version 1.1.14
November 21, 2024
- (Knuckles, ANTI) Latency is reduced by 1.3 ms
- (Dream, ANTI) Output polarity now matches input polarity
- (Enigmatic) Fixed level jump when rapidly toggling Overdrive with footswitch
- (Knuckles) Reduced Master setting in some factory presets for clarity (to reduce default Master setting for Live sound: Factory reset the pedal, or in UAFX Control, Revert to Default)
UAFX Version 1.1.13
August 20, 2024
- (ANTI) Improved noise gate
- (ANTI) Increased available headroom
- (ANTI) Refined room sound
UAFX Version 1.1.9
March 28, 2024
- Improved Bluetooth connectivity
UAFX Version 1.1.8
December 22, 2023
Note: This version is only for Astra, Golden, and Starlight pedals.
- Resolved volume issues after installing firmware v1.1.7
UAFX Version 1.1.7
November 21, 2023
- Improved Bluetooth connectivity with Android 14 devices
- (Astra) Improved audio pops when toggling some settings
- Minor bug fixes and improvements
UAFX Version 1.1.6
October 18, 2023
- (Lion) New Ghost Notes and Bright Cap mods
UAFX Version 1.1.5
September 26, 2023
- Initial release for new OX Stomp and Lion '68 pedals
UAFX Version 1.1.3
April 11, 2023
- Max: New Gain Reduction Metering
- Improved Bluetooth connectivity*
- (Max) New Split dual-mono mode*
- (Galaxy) New Reverb Always On mode*
- (Del-Verb) Reverb available in Delay | Tap Tempo mode*
*Requires UAFX Control v2.2.0 or newer (released September 26, 2023)
UAFX Version 1.1.2
April 11, 2023
- Initial release for new Del-Verb, Galaxy, and Max pedals
- Woodrow: Resolved mic level issue after loading preset
- Security refinements
UAFX Version 1.1.1
May 24, 2022
- Improved Bluetooth connectivity
- General improvements for quality and performance
UAFX Version 1.1.0
May 24, 2022
- Support for new UAFX amp pedals
- Support for new preset features and backups in UAFX Control mobile app
UAFX Version 1.0.1
June 22, 2021
- Support for UAFX Control mobile app
- General improvements for quality and performance
UAFX Version 1.0.0
March 23, 2021
- Initial release for UAFX effect pedals