Bukkit

NovaAC Changelog

Core Detection Improvements
- Expanded the movement and combat analysis systems.
- Added improved movement simulation and physics prediction.
- Improved packet tracking, packet timing and packet-order analysis.
- Added better handling of player position history, knockback and desynchronization.
- Improved the system used to combine multiple suspicious signals.
- Added additional regression and false-positive protection tests.
- Improved check registration and configuration validation.

Combat
- Improved Reach calculations during combat.
- Added better knockback and latency compensation.
- Separated Reach and Reach Packet buffering to reduce false alerts.
- Improved detection of suspicious delayed hits and target-history abuse.
- Improved combat rotation, click-pattern and attack-timing analysis.
- Reduced false positives during legitimate PvP and high-ping situations.

Movement
- Improved Fly detection against ping spoofing and delayed keepalive packets.
- Improved detection of abnormal movement in water, vehicles and elytras.
- Improved BoatFly, BoatSpeed and BoatLongJump detection.
- Reduced false positives when stepping onto boats or dismounting them.
- Improved Jesus detection for abnormal water movement and repeated water impulses.
- Reduced false positives while swimming, leaving water or walking near shorelines.
- Improved NoWeb detection inside cobwebs.
- Fixed several false positives involving jumps, sprinting and movement impulses.
- Improved Scaffold detection on solid ground.

NoFall
- Improved detection of ground spoofing and silent landings.
- Added detection for abnormal fall-reset packets and blink-like delays.
- Added detection for mid-air mounts and suspicious fall-state changes.
- Reduced false positives caused by normal landings, vanilla jumps, slime, honey and short packet gaps.
- Improved the use of packet-based fall distance during delayed movement.

Packets and Exploits
- Improved duplicate-packet detection.
- Standing still with normal identical position packets no longer causes false alerts.
- Improved packet-order and malformed-packet detection.
- Improved detection of abnormal client timing and tick-rate manipulation.
- Improved simulation-drift and payload-integrity protection.
- Improved detection of ping manipulation used to hide movement cheats.

Bedrock and Geyser
- Improved Bedrock movement and combat compensation.
- Improved handling of Geyser-translated movement and input.
- Reduced false positives caused by Bedrock hitboxes, rotations and controller or touchscreen input.
- Improved Bedrock checks for movement, reach, combat, speed, flight and clicking.

Configuration and Reliability
- Improved startup validation of configured checks.
- Fixed valid checks being incorrectly reported as missing during configuration audits.
- Improved configuration migration and check registration.
- Improved handling of server lag, teleportation, knockback and unstable connections.
- Improved general stability and false-positive protection.