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Software and firmware versions | QuietComfort® 35 wireless headphones II
QuietComfort 35 II software versions
4.x
4.x
Released 7 Oct 2020
Version 4.8.1
- Adds a Self Voice adjustment via the Bose Connect app. This lets you adjust how much of your own voice you hear during phone calls
- Improves Bluetooth® performance, including when connected to mulitple devices or when connected to a Bose smart speaker via SimpleSync
- Battery level voice prompts are heard when your headset is connected with a wire
- General stability improvements
Released 19 Jun 2019
Version 4.5.2
- Improves to Music Share performance
- Improvs to Bose AR functionality
- Fixes music playback not resuming after a voice request to Alexa
- General stability improvements
Released 6 Mar 2019
Version: 4.3.6
- Added groundwork for for Bose AR functionality
- General stability improvements
Released 17 Sept 2018
Version 4.1.3 began on products manufactured on 17 Sep 2018
3.x
3.x
Released 7 Aug 2018
Version 3.1.8
Enhancements
- Adds support for Amazon Alexa
- Security update to prevent accidental Android phone connections
- Improves Bluetooth® multi-point performance
- Improves Music Share performance
- General stability improvements
2.x
2.x
Released 15 Mar 2018
Version 2.5.1
Enhancements
- Improves LED accuracy while charging
- Resolves power down tones while headset is in use
- Improvements to Bose Connect app functionality, including pairing and auto-off functions
2.x
Released 8 Feb 2018
Version 2.2.1Enhancements
- Music Share support
- Improvements to Bluetooth® multi-point functionality
- Fixes phone ringtone volume playing loudly when headset volume is set low
- Improved LED response during phone calls
- Fixes the error message loop on some iOS devices while trying to connect using the Bose Connect app
2.x
Released 13 Dec 2017
Version 2.2.0
Enhancements
- Music Share compatibility
- General stability improvements
2.x
Released Sep 2017
Version 2.1.3
Enhancements
General stability improvements2.x
Released 3 Jul 2017
Version 2.0.1Initial release
Bose Connect app versions
Bose Connect App Software Versions
Bose Connect App Software Versions
| Release Date | Version | Release Notes | Compatible OS Versions |
|---|---|---|---|
| 25 November 2025 (iOS) 1 December 2025 (Android) | 26.0.0 | A few tweaks and fine-tuning to make the app more stable and less buggy. | Android: 10 and up iOS: 12 and up |
| 22 July 2025 | 25.2.0 | A few tweaks and fine-tuning to make the app more stable and less buggy. | Android: 10 and up iOS: 12 and up |
| 1 October 2024 | 24.0.0 | Minor tweaks and fine-tuning to enhance app stability and reduce bugs. | Android: 10 and up iOS: 12 and up |
| 29 August 2024 | 23.0.0 | Minor tweaks and fine-tuning to enhance app stability and reduce bugs. | Android: 10 and up iOS: 12 and up |
| 11 July 2024 | 22.0.1 | A few tweaks and fine-tuning to make the app more stable and less buggy | Android: 10 and up iOS: 12 and up |
| 26 June 2024 | 21.0.1 | Minor tweaks and fine-tuning to enhance app stability and reduce bugs. | Android: 10 and up iOS: 12 and up |
| 30 May 2024 | 20.0.1 | App migration support for select legacy devices. | Android: 10 and up iOS: 12 and up |
| 15 April 2024 | 19.1.0 | UI and pairing flow improvements. | Android: 10 and up iOS: 12 and up |
| 5 March 2024 | 19.0.0 | General performance improvements and bug fixes. | Android: 10 and up iOS: 12 and up |
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