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Boss GT-1000 firmware

Boss active Device launched 2018
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Latest firmware

4.02
released 1 Jul 2026
Download firmware from boss.info · needs Boss Tone Studio for GT-1000

What's new in 4.02

Bug Fixes The following bugs were fixed. When switching patches without interrupting the sound, noise was produced under certain conditions. (How to avoid this in older versions) This noise does not occur when switching patches with a mute of sound. If you encounter issues such as noise during patch switching, please move the position of the unused block (effect block whose SW is OFF) so that the chain block position does not remain the same in patches before and after the switching. When "MANUAL" is assigned to the built-in switches as CONTROL FUNCTION, it does not work well under certain conditions. (How to avoid this in older versions) Setting ASSIGN SOURCE to a switch other than the built-in switches can avoid this issue. After restoration by ALL DATA BACKUP function of BTS, PEDALBOARD patch was not restored correctly. Other minor bugs have been fixed.

Last checked 27 Oct 2026

Release notes on boss.info ↗

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How to update the Boss GT-1000

Update via USB mass storage (hold WRITE at power-on).

What you need

Boss Tone Studio for GT-1000 — the software Boss uses to load firmware onto the Boss GT-1000. Download links below.

Just for reference. For complete and up-to-date instructions, always refer to the manufacturer's official firmware page.

Drivers & software for the Boss GT-1000

The Boss GT-1000 is updated with Boss Tone Studio for GT-1000, published by Boss.

Download Boss Tone Studio for GT-1000 from Bossopens in a new tab — boss.info

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Boss GT-1000 firmware update history

10 releases since Apr 2020, roughly one every 8 months.

Changelogs summarised from the manufacturer's release notes.

Version 4.02 — 1 Jul 2026

Release notes for this version are listed above.

Release notesopens in a new tab — boss.info

Version 4.01 — 1 Mar 2026

Specification Change The following specification was changed. The polyphonic tuner function has been removed. Bug Fixes The following bug was fixed. Fixed the bug in the processing to prevent mute when switching memories. (How to avoid this in older versions) If the conditions of "no block position change occurs on the chain" and "no change of TYPE on the same block" are met, the patch will be switching seamlessly without a mute of sound. In Ver.4.01, a bug was fixed in the conditional judgment section where "do not change TYPE on the same block." If you encounter issues such as noise during patch switching, please move the position of the unused block (effect block whose SW is OFF) so that the chain block position does not remain the same in patches before and after the switching.

Version 4.00 — 1 Jul 2024

Please refer to the "GT-1000 Parameter Guide" for detailed information in the [ Owner's Manuals ]. Additional Functions 3 original BOSS high-gain amp types have been added to AIRD PREAMP. X-ULTRA X-OPTIMA X-TITAN * Preset patches that use the added TYPE settings are contained in P41-1 through P43-5. For details, refer to "GT-1000 Sound List." 6 types of bass amps have been added to AIRD PREAMP. STUDIO BASS SILVER TUBE CLASSIC BLUE SOLID STACK FAT TUBE DARK DRV 2 BOSS distortion types have been added to DISTORTION. SD-1 DS-1 The following 3 models have been added to AIRD OUTPUT SELECT. KATANA-100/212 GEN 3 KATANA-100 GEN 3 KATANA-50 GEN 3 Functionality Improvement You can set time preference in AUTO OFF function at which the power turns off automatically. Bug Fix Minor bugs have been fixed.

Version 3.21 — 1 Dec 2023

Bug Fixes The following bugs were fixed. ASSIGN PC cannot be sent to more than one MIDI channel. When executing INSERT of WRITE function, EFFECT parameters which are added at ver.3.10 become the initial values. When changing the BPM from BTS on the effect edit view, the calculated DELAY TIME is not updated. On the list view of effect's all parameters, SOLO SW is always displayed when FX1-4 DISTORTION is displayed.

Version 3.20 — 1 Jan 2022

Please refer to the "GT-1000 Parameter Guide" for detailed information in the [ Owner's Manuals ]. Additional Functions "MASTERING FX," which demonstrates potential for line output, has been added to FX TYPE. Eleven types of settings that combine multiple effects such as multi-band compressor, limiter, enhancer, and equalizer have been provided as TYPE settings. Full-fledged mastering to boost the acoustic pressure of the sound and make sound contours more distinct can now be carried out. The GT-1000 is a processor distinguished by a vivid amp sound, but the addition of these effects makes it easy to obtain a line sound having adaptable fighting potential even in recording that demands precise adjustment. We recommend using these with placement after an SP.SIMULATOR. Ten types of SP TYPE settings designed based on IR data having a realistic presence have been added to the SP.SIMULATOR parameters. Ribbon mic and blended dynamic/ribbon mic MIC TYPE settings have been added to the SP.SIMULATOR parameters. Five types of BOSS and Roland delays have been added to the MASTER DELAY parameter. The DD-8's acclaimed WARM and GLITCH settings, the vintage digital SDE-3000, and the still-popular STANDARD and ANALOG parameters featured on the DD-20 have been added. The optional EV-1-WL wireless expression pedal is now supported. Please refer to the "EV-1-WL Connection Guide (Connect with the GT-1000)" for detailed information in the [ Owner's Manuals ]. Bug Fixes The following bugs were fixed. ASSIGN values set for an external pedal take effect at startup. The operation of BOSS TONE STUDIO becomes extremely slow due to MIDI IN THRU and USB IN THRU settings.

Version 3.15 — 1 Dec 2021

The version number has been updated due to management-related circumstances. Product specifications are unaffected.

Version 3.14 — 1 Nov 2020

Bug Fixes The following bugs were fixed. Depending on Compressor settings, noise sometimes occurs when switching patches. Patch settings cannot be written into a STOMPBOX at the Effect Chain screen. At the screens displaying lists of parameters, the STOMPBOX values for FX 1 through 3 cannot be edited.

Version 3.13 — 1 Oct 2020

Bug Fixes The following bugs were fixed. Under certain conditions, VIBRATO fails to work as desired when switching patches. Behavior is not as desired when the STEREO LINK parameter for SP.SIMULATOR is set to OFF. Other minor bugs.

Version 3.12 — 1 Jul 2020

Please refer to the "GT-1000 Parameter Guide" for detailed information in the [ Owner's Manuals ]. Functionality Improvement An "AUTO TRIGGER" parameter has been added that enables an effect synchronized to the performance to be produced when the TYPE value for MASTER DELAY is set to REVERSE. Bug Fixes The following bugs were fixed. The effect level sometimes rises when CARRYOVER is active. Under particular conditions, the DUCK parameter for REVERB fails to operate as desired when patches are switched. Other minor bugs.

Version 3.11 — 1 Apr 2020

Please refer to the "GT-1000 Parameter Guide" for detailed information in the [ Owner's Manuals ]. Additional Function "WAIT 2" was added to the BANK MODE parameter for PLAY OPTION. This makes it possible to switch patches within the same bank even when a function other than number switching is assigned to the number pedal. Bug Fix The following bug was fixed. In GT-1000 system program version 3.10, when CARRYOVER is set to ON, sound sometimes fails to play when the unit is switched to a patch for which MASTER DELAY is set to "OFF."

Boss GT-1000 firmware FAQ

What is the latest firmware for the Boss GT-1000?

The latest firmware for the Boss GT-1000 is version 4.02, released on 1 Jul 2026. FW//RADAR last checked Boss's official page on 27 Oct 2026.

How do I update the Boss GT-1000?

Update via USB mass storage (hold WRITE at power-on). Full instructions on Boss's official firmware page.

What software do I need to update the Boss GT-1000?

You need Boss Tone Studio for GT-1000, available from Boss's support site.

Where can I download Boss GT-1000 firmware and drivers?

Directly from Boss's official firmware page — FW//RADAR links to the source and never hosts firmware files. Official firmware page →

Where can I find the Boss GT-1000 manual?

The official Boss user manual is published on boss.info. Boss GT-1000 user manual →

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