This beta version contains some sweet additions that will be mostly interesting for rule creators. We fixed a whole lot of various bugs too, so even an average user will find something positive in this update.
[Improved] $important modifier was added to the rule constructor #626
This one is a rather obvious: when you use the manual blocking tool to create a rule, you can now give this rule a higher priority by ticking the checkbox. The $important modifier was available before, but you had to manually add it through the user filter.
[Added] $csp modifier support #685
This is strictly for the rule creators, as it requires the basic understanding of the Content Security Policy security layer.
This modifier completely changes the rule behavior. If it is applied to a rule, it will not block the matching request. The response headers are going to be modified instead.
You can find the syntax and examples for csp inside the issue.
Common
[Changed] German translation was updated #680
[Changed] A link for "Protected by Adguard for Windows" menu item was added to the description page #672
[Fixed] Adguard settings window is not shown in private mode: #658
[Fixed] WebRTC circumvention: #588
[Fixed] Adguard 2.6.1 Beta does not block WebSocket connection: #652
[Fixed] Auto-activation of filters still work in integration mode: #666
[Fixed] $webrtc does not work on rapidvideo.com: #669
[Fixed] Filtering log errors: #687
[Fixed] A bug with element hiding rule with domains containing www: #665
Safari
[Fixed] Safari tab / Ergonomics issue: #505
[Fixed] "Block ads on this website" tool does not work in Safari 9.1.3: #704
Edge
[Fixed] Edge browser.windows.getAll issue in the Insider Fast ring build #569
[Fixed] Adguard dropdown menu glitch - Edge browser: #675
[Fixed] Advanced settings menu does not expand: #708
[Fixed] "Block ads on this webside" tool misbehaves: #691
Firefox
[Fixed] Errors in FF browser console: #673
[Fixed] Cleaning Firefox data breaks Adguard extension: #681
[Fixed] Filtering log: new tab stays in the background when opened: #697