Q&A AdGuard Blog: Big Sur: the good, the bad, and the ugly


Level 42
Content Creator
Apr 24, 2016
Not so long ago we released AdGuard v2.5 for Mac, which, among else, made a heavy accent on compatibility with soon-to-come macOS Big Sur. The v2.5.1 patch that followed recently was packed with more compatibility-oriented changes.

I have to say that befriending AdGuard and Big Sur is not a simple task at all. Apple shakes things up really hard this year when it comes to macOS.

First of all, it's because of the deprecation of Kernel Extensions. If you're a frequent reader of our Blog, you probably remember that we mentioned this as early as in March. You can find plenty of information on this topic if you're intrested in digging deeper, but the bottom line is that Kernel Extensions is an API that AdGuard used to rely on in earlier versions, and with Big Sur macOS moves to a new API, and it's very, very different. All internal AdGuard processes had to be rebuilt, accommodating to the new API.

But that's not the only factor. The introduction of Big Sur comes with Apple switching from Intel processors to ARM. As you might guess, it takes its toll as well. Let's take a closer look at both reasons...
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