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https://github.com/brave/brave-core/pull/15141 added support for WoA. Related GitHub issue https://github.com/brave/brave-browser/issues/6319
Widevine support is not yet available.
Brave started producing Windows Arm64 binaries from v1.47.x (E.g: https://github.com/brave/brave-browser/releases/download/v1.47.97/brave-v1.47.97-win32-arm64.zip). See GitHub release tags for other versions.
Brave official download page doesn’t provide Windows Arm64 binaries yet. See discussion in https://github.com/brave/brave-browser/issues/6319
Latest installer - https://laptop-updates.brave.com/latest/winarm64
Continuous Integration and Binary Availability
Brave Browser is currently bring built nightly for Windows on Arm and binaries are available at https://github.com/brave/brave-browser/releases
Currently a bug in Microsoft App Store may cause the emulated version to be made available instead of the native installer.