The emphasis in this beta has been made on various networking issues, particularly on compatibility with antiviruses.
Ad blocking
[Improved] URL exclusion blocking rules are now created with important modifier by default #2305
Networking
[Fixed] AdGuard does not filter connections with TDI driver #2308
[Fixed] Avast Free prevents AdGuard from suppressing QUIC #2310
The current way of whitelisting apps from filtering for WFP driver has been extended to TDI driver. It allows to avoid compatibility issues with other software, especially with antivirus software.
[Improved] AdGuard now checks on installation if the TDI driver is not registered yet #2321
UI
[Fixed] AdGuard remembers the last displayed settings tab after closing #2317
[Fixed] The Assistant icon appears in full screen mode on YouTube and Twitch #2309
[Fixed] Move the assistant icon back to the right corner #2314
Other
[Fixed] Crash while closing from tray #2252
[Fixed] Crash after auto-update on the application startup on Windows 7 #2290
[Fixed] An error while parsing the userscript metadata #2311
[Improved] A privacy-friendly protocol is now used for the parental control web service #2316