The full changelog since Tor Browser 12.0.4 is:
  • All Platforms
    • Updated Translations
    • Updated NoScript to 11.4.21
    • Updated Go to 11.9.8
    • Bug tor-browser#41688: Rebase Tor Browser Stable to 102.10.0esr
  • Windows + macOS + Linux
    • Updated Firefox to 102.10esr
    • Bug tor-browser#41526: "Cancel" button when establishing a connection should be grey
  • Android
    • Updated GeckoView to 102.10esr
    • Bug tor-browser#41724: Backport Android-specific security fixes from Firefox 112 to ESR 102.10-based Tor Browser
  • Build System
    • Windows
      • Bug tor-browser-build#40822: The Tor Browser installer doesn't run with mandatory ASLR on (0xc000007b)
    • Linux
Interestingly enough TOR is implementing proof-of-work to combat DDOS/Spam from the network.
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