This update is just a chill guy that makes the app up to 30x faster. We did some work on Safari Converter, so now AdGuard filtering rules are converted to Safari rules in just 0.5–2 seconds instead of 10–30. You will notice the difference especially when updating, enabling, or disabling filters and turning protection on.
Let's give a bit of explanation.
Updating and/or applying filters involves three steps: downloading new versions to the AdGuard app (a seamless process), converting AdGuard rules into Safari-compatible rules (now 30x faster thanks to optimization), and loading the rules into Safari. In the case of the last step, however, on iOS and iPadOS, the process takes 6–15 seconds per small content blocker to compile rules compared to fractions of a second on macOS. This delay affects user experience and slows filter updates, which are critical for ad blockers' performance. AdGuard has reported the issue to Apple (ticket ID: FB16130983) and hopes for a fix in 2025. You can read the blog post for more details.