Release Schedule

The Tor Browser Release Schedule is influenced by Mozilla's Firefox Release schedule.

Currently, like Mozilla, we publish Tor Browser updates roughly every four weeks, with occasional bugfix-versions in between. Tor Browser for Android platforms follow the Rapid Release schedule (e.g. versions 82, 83, 84, etc.), while Tor Browser for Windows, macOS, and Linux platforms follow the Extended Support Release schedule (e.g. 78.3.0esr, 78.4.0esr, 78.5.0esr, etc.).

Mozilla announce their upcoming Firefox releases on their Rapid Release calendar. Based on this, the next planned Tor Browser Releases are described in the below table and shown on the Release Calendar.

Release Date	Release Version	Platforms	Based on
2021-01-19	10.5a7	Android	Fenix 85-beta.X/Firefox 85.0b8
2021-01-19	10.5a7	Windows/macOS/Linux	Firefox 78.6.1esr
2021-01-26	10.0.9	Windows/macOS/Linux	Firefox 78.7esr
2021-01-26	10.0.9	Android	Fenix 85
2021-01-26	10.5a8	Android	Fenix 85
2021-01-26	10.5a8	Windows/macOS/Linux	Firefox 78.7esr
2021-02-05	10.5a9	Android/Linux	Fenix 86-beta.X/Firefox 86.0b5
2021-02-12	10.5a10	Android/Linux	Fenix 86-beta.X/Firefox 86.0b8
2021-02-23	10.0.10	Windows/macOS/Linux	Firefox 78.8esr
2021-02-23	10.0.10	Android	Fenix 86
2021-02-23	10.5a11	Windows/macOS	Firefox 78.8esr

Previous releases:

Release Date	Stable Release	Stable Based on	Alpha Release	Alpha Based on
2020-07-28	9.5.3	Firefox 68.11esr	10.0a4	Firefox 68.11esr
2020-08-11			10.0a5	Firefox 78.1esr
2020-08-25	9.5.4	Firefox 68.12esr	10.0a6	Firefox 78.2esr
2020-09-08			10.0a7	Firefox 78.2esr
2020-09-22	10.0	Firefox 78.3esr	10.5a1	Firefox 78.3esr
2020-10-08			10.0a8 (Android)	Fenix 81.1.2
2020-10-13	10.0.1	Firefox 78.3esr
2020-10-20	10.0.2	Firefox 78.4esr	10.5a2	Firefox 78.4esr
2020-10-26			10.0a9 (Android)	Fenix 82.1.1

Release Date	Release Version	Platforms	Based on
2020-10-30	10.0.3	Android	Fenix 82.1.1
2020-11-06	10.5a3	Android	Fenix 83-beta.X (Firefox 83.0b8)
2020-11-11	10.0.4	Windows/macOS/Linux	Firefox 78.4esr
2020-11-11	10.0.4	Android	Fenix 82
2020-11-12	10.5a3	Windows/macOS/Linux	Firefox 78.4esr
2020-11-12	10.5a3	Android	Fenix 82
2020-11-17	10.0.5	Windows/macOS/Linux	Firefox 78.5esr
2020-11-17	10.5a4	Windows/macOS/Linux	Firefox 78.5esr
2020-11-17	10.5a4	Android	Fenix 83.1.0-rc.1 (Firefox 83.0)
2020-11-25	10.0.5	Android	Fenix 83.1.0
2020-12-09	10.0.6	Windows/macOS/Linux	Firefox 78.5esr
2020-12-09	10.0.6	Android	Fenix 83.1.0
2020-12-15	10.0.7	Windows/macOS/Linux	Firefox 78.6esr
2020-12-15	10.0.7	Android	Fenix 84
2020-12-15	10.5a6	Windows/macOS/Linux	Firefox 78.6esr
2020-12-15	10.5a6	Android	Fenix 84
2021-01-12	10.0.8	Windows/macOS/Linux	Firefox 78.6.1esr
2021-01-12	10.0.8	Android	Fenix 84.1.4