Kuaiya v4.2 Release Notes: Split-Tunneling and Ad Blocking
On August 18, 2026, Kuaiya released v4.2. The update focuses on three goals — more precise, cleaner and more stable — introducing smart split-tunneling and ad blocking while expanding the global node count past 200, a major iteration for all platforms.
After v4.1 ran stably for months, the Kuaiya team collected extensive feedback from users and operational data. Users wanted not only "able to connect" but "able to connect smartly" — auto-distinguishing domestic direct access from accelerated apps while reducing ad interference. v4.2 answers those demands directly.
Smart Split-Tunneling: Let Traffic Take Its Own Path
Split tunneling lets users specify which apps or rules route through the acceleration channel and which stay on direct local access. For apps that need domestic services, direct access avoids unnecessary detours and lowers latency; for apps needing overseas services, the encrypted channel ensures reachability.
Technically, routing rules match on two dimensions: domain and process. The system ships with default rules for common apps, and users can define their own allowlists and denylists. This preserves native speed for domestic traffic while ensuring overseas access.
Ad Blocking and Node Expansion
Ad blocking relies on a real-time updated filter rule base that blocks ads and tracking scripts locally, reducing page load and further cutting privacy tracking risk. The team stresses this runs locally with no intermediary server involved.
On nodes, v4.2 expands the network past 200, adds multiple new routes, and upgrades existing nodes with more bandwidth and redundancy. Combined with the smart route engine, node utilization and connection success both improved.
Data and Feedback
Officially, during v4.2 gray testing, enabling smart split-tunneling cut domestic app latency by about 27%, while ad blocking reduced average mobile page load time by roughly 18%. These numbers come from two weeks of observation over tens of thousands of user samples.
Testers reported that after the update, "overseas videos are no longer interrupted by pre-roll ads, while domestic apps like WeChat returned to direct-access speed." Such improvements illustrate the synergy between the two new features.
The team closed the changelog by calling v4.2 an important bridge update, with continued focus on connection stability and privacy. Users can update via the download center; older versions will gradually lose some service support in the coming weeks.
Comments (4)
Split-tunneling is very practical — domestic and overseas both get full speed now.
Ad blocking is a huge plus. Pages feel much lighter now.
More nodes now — low-latency routes are easier to find at peak hours.
Custom split rules are developer-friendly, and docs kept up.