Although this work doesn't include any changes to the user experience, those who run non-standard Tor Browser setups are encouraged to test 12.0a4 on their systems.

Parts of the code that power tor-launcher – which starts tor within Tor Browser – have been refactored. Alpha testers are also encouraged to test changing language within about:preferences#general, and to report any new bugs with localization in general. What to test: Tor Browser Alpha should default to your system language on first launch if it matches a language we support. All supported languages are now included in a single bundle, and can be changed without requiring additional downloads via the Language menu in General settings. This is the first multi-locale release of Tor Browser Alpha for desktop. Tor Browser 12.0a4 includes a number of changes that require testing and feedback: Multi-locale bundles (Desktop)

There were no Android-specific security updates to backport from the Firefox 106 release. This version includes important security updates to Firefox and GeckoView. Tor Browser 12.0a4 updates Firefox on Android, Windows, macOS, and Linux to 102.4.0esr. Tor Browser 12.0a4 is now available from the Tor Browser download page and also from our distribution directory.

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