AntiFlight

- Updated detection for hunger mode

- Added support for Minecraft 26.3 - a new Fabric build target, plus Paper/Spigot compatibility checks now extend to 26.3. - Consolidated the Fabric targets into one shared source tree, so all four versions stay in sync automatically. - New /antifly voidaccess toggle: blocks the Nether roof (Y >= 128) and the void below the Nether and Overworld. - Added a vanilla glide-physics verifier for Elytra hacks, which leaves rocket boosts, steep dives, pull-ups and obstacle crashes alone. - Reduced false flight flags from potions (Depth Strider, Dolphin's Grace, Speed), external momentum (wind charge, TNT, knockback) and long falls. - Fixed Fabric players in boats being flagged on enter, exit and dismount. - Added adjustable verifier settings and an observe-only mode (/antifly set elytraVerifierMode observe) for tuning without setbacks. - Added movement tests and improved Folia scheduling compatibility.

- Hunger Mode now tracks accepted flight movement reliably and drains food continuously. - Hovering has a visible baseline hunger cost; landing immediately clears queued hunger and flight penalties. - At zero food, flight damage starts immediately and deals one full heart per tick with the default flightDamagePerSecond: 1.0. - /antifly set supports value lookup, dotted/short setting keys, and accurate unknown-key errors. - /antifly status now shows complete tuning values. - Improved Elytra checks and teleport handling. - Expanded live configuration controls and status visibility. - Fixed Hunger Mode flight, hover, landing, and starvation escalation behaviour.

Hunger Mode

- /antifly hungermode <on|off> - replaces hard blocks with a food/health tax - Food drain scales with speed (cap 200 BPS = 10 food/s); hovering always drains slowly, even floating still in the sky - client onGround spoofing can't bypass it - Health damage kicks in after sustained flight, only after hunger has been draining (elytra: 30s of active drain; others: 20s). Ticks every 2s (4s while descending), so landing is always survivable - Rockets reset the damage timer with elytra flight.

Elytra

- Checks only block what vanilla can't do: sustained speed >6 b/t, instant climbs >4 b/t, stall-hovering. Dives, pull-ups, rocket boosts and crashes are all allowed - Only punished when exploiting: speed >50 BPS, hover-hack, or gliding 45s without a rocket. Vanilla gliding with rockets = free

Fixes

- Teleports (pearls, chorus, portals, /tp, plugin warps) no longer trigger setbacks; plugged a teleport-fly exploit - New sustained-air check: airborne 7.5s without support → rubber-banded - Ground walk default raised to 0.67

All tunable in-game

- /antifly set <key> <value> - hunger rate, hover floor, elytra thresholds, flight damage timing, sustained-air limit. Lists values too.

- Added ground_spoof_speed detection for fast movement while the client reports airborne. - Restricted landing grace to players who were genuinely gliding. - Prevented repeated ground/air transitions from continually refreshing elytra grace. - Added sustained flat-flight detection after 12 air ticks. - Flat cruise detection triggers at horizontal movement ≥ 0.45. - Removed the requirement for hover detection to have near-zero horizontal movement, catching moving hover flight. - Added air_plane reason-to-setting mapping for Fabric logs. - Added case-insensitive canonical setting-key handling. - Improved normalization for keys such as: - groundWalkMax - groundMountedMax - waterMax - waterVerticalMax

- Added Fabric support for Minecraft 1.21.11, 26.1.2, and 26.2. - Added dedicated Fabric builds and version-specific mod metadata. - Added Folia support for the Paper plugin. - Improved ground detection on slabs, beds, half-blocks, and other partial blocks. - Fixed boat flight and hovering over ledges/cliffs. - Added boat horizontal speed limits and natural falling behavior. - Added vehicle, boat, and horse air-grace settings. - Improved Elytra checks for rockets, ascent, descent, pull-ups, stalls, and slowdowns. - Added Elytra durability validation with movement-based suspicion handling. - Added world-specific disable controls. - Added /antifly disabledworlds. - Expanded /antifly set configuration options and legacy aliases. - Improved status output and debug telemetry. - Improved setback handling and false-positive protection. - Updated Gradle and Loom tooling for Fabric 26.2.

- Fixed false flags when walking on beds & other half-height blocks - Able to disable Antifly per world - Hover detection no longer false-flags slow-fall effects - New tuneables: elytraMaxRocketHorizontal, elytraMaxRocketUp, elytraNoRocketSustainableHorizontal, elytraMaxNoRocketUp

- Paper-side anti-fly detection got a major rewrite, with layered checks for ground support, air/hover behaviour, no-fall/anti-kick suspicion, and setback cooldowns. - Elytra handling was expanded with separate boost grace, stall detection, no-rocket glide sanity checks, movement buffering, and durability-based suspicion checks. - Added new admin controls for alert routing with /antifly alerts <off|game|console|both>. - Added /antifly debug so admins can toggle live action-bar telemetry for movement limits and buffer state. - Expanded /antifly status to show the newer config groups and current alert mode. - Added in-game alert permissions via antifly.alerts, alongside console/game alert routing. - Expanded /antifly set to support the new config keys, while keeping legacy aliases for backward compatibility. - Added live Modrinth version checking through /antifly status, plus startup warnings for admins if the installed version is outdated. - Brought the Fabric side up to match the newer detection and admin feature set, including alert modes, new settings, and version checking.

- Fixed Boat/Mount Flying/Speed/Falling - Updated CLI - Added Update Checker - Fixed Regression From 1.0.6

- Better handling of mounts - Better handling of teleporting - Java changes

- Improved Flight Detection - Flight Anti-Kick Detection - New Default Settings

- Fixed Snow Walking - Fixed Bubble Columns

- Updated & Split GroundSpeed - Fixed Fence Walking - Fixed Horses

Fabric 1.21.11 Support So no change between this and 1.0.1 for the PaperMC release!

Initial Public Release