ChunkVeil

Huge performance boost. Every part of ChunkVeil was reworked and tested under load with 100 fake players. Protection stays exactly the same. - Chunk rewriting about 9x faster, and the same chunk is now only rewritten once for players standing together - Reveal scans and entity scans cost about half - No more lag spikes from chunks being re-hidden - Reveals only go to the player who needs them - /chunkveil reload no longer resends every chunk to everyone Fixes: hidden mobs staying invisible or leaking names and items, Minecraft 1.21.0 to 1.21.4 chunks, caves filled with fake blocks, the End default settings, reveals while riding or standing still, and several Folia issues. Note: this is a beta, please report anything odd. Minecraft 26.3 is not supported yet because of a ProtocolLib issue.

One universal jar now runs on Paper and, experimentally, Folia (1.21.11 / 26.2 with the pinned ProtocolLib dev build on Java 25). Paper behavior is unchanged, on Folia everything unreachable across region boundaries stays hidden rather than leaking. Release candidate, test before production use, updates and upgrades will come soon

Fixes underground players' placed/mined blocks turning into ghost fake-blocks (and wrongful fly-kicks) when another player was nearby. Recommended for all servers.

Server Crash Fixes Known critical bugs on this version, update to 1.0.2 or newer.

Known critical bugs on this version, update to 1.0.2 or newer. ChunkVeil 1.0.0 is finally here. This release has been tested with multiple players across several Minecraft versions and has been running without reported errors.

What’s new?

- Stronger fail-closed packet protection - Underground particle and vibration-origin filtering - Concealed lighting sanitization - Improved entity hiding and fair entity scanning - Better /chunkveil verify, diagnostics, and reports - Automatic configuration upgrades that preserve existing settings - Recommended and strict protection configurations - Expanded packet regression and failure-injection tests

Tested versions

- Paper 1.21.8 - Paper 1.21.11 - Paper 26.1.2 - Paper 26.2

ProtocolLib is required. Use a ProtocolLib build compatible with your Paper version.

After updating, fully restart the server and run:

/chunkveil verify

Thank you for testing and supporting ChunkVeil.

Known critical bugs on this version, update to 1.0.2 or newer.

ChunkVeil 0.5.0

- Added /chunkveil verify with a clear PASS/WARN/FAIL result. - Added /chunkveil reload --check for safe config validation. - Added packet regression tests and stronger fail-closed diagnostics. - Added a public protection-status event for integrations. - Verified on Paper 1.21.8, 1.21.11, and 26.1.2. After updating, run /chunkveil verify.

ChunkVeil 0.4.0

- Added in-game update notifications. Admins with chunkveil.update get a clickable download link on join when a newer release is available for their exact Minecraft version. Check manually with /chunkveil update. The checker only reads version metadata and never downloads anything. Disable with update-checker.enabled: false. - Added anonymous aggregate usage statistics via [bStats](https://bstats.org/plugin/bukkit/ChunkVeil/32677). No world data, player data, or server address is sent. Opt out with metrics.enabled: false. Supported: Paper 1.21.x and 26.0-26.2, Java 21, requires ProtocolLib. Upgrading from 0.3.0: drop in the new jar and restart. New config sections are added automatically.

What's new

- MC 26.x support: ChunkVeil now fully supports Paper 26.x (tested on 26.1.2). A protocol format change in 26.x caused startup failures and chunk packet crashes. Both are fixed. - Universal jar: Single jar for both 1.21.x and 26.x. ChunkVeil detects the server version at runtime automatically, no need to pick the right file.

Supported versions

- Paper 1.21.x (tested on 1.21.11) - Paper 26.x (tested on 26.1.2) - Java 21 - ProtocolLib compatible with your server version

ChunkVeil 0.2.3

This update improves admin diagnostics, performance tuning, packet protection, and fail-closed safety.

Added

- Added /chunkveil compat for Minecraft, Paper, Java, ProtocolLib, rewrite, runtime, enabled worlds, and warning diagnostics. - Added /chunkveil inspect <player> for player-specific ChunkVeil state. - Added /chunkveil report to generate diagnostic report files. - Added /chunkveil predict to estimate performance from live timing samples. - Added config validation warnings for common setup issues. - Added configurable chunk update budgets and entity scan limits. - Added optional adaptive scan quality below a configured TPS threshold. - Added secondary packet protection counters for hidden explosions, world events, block break animations, and positional sounds.

Improved

- Improved /chunkveil status with clearer grouped output and timing metrics. - Improved fail-closed behavior when raw chunk rewriting is unavailable or breaks at runtime. - Improved packet rewrite handling for partial hidden sections. - Improved Spigot and Modrinth documentation.

Fixed

- Fixed non-16-aligned hide-below-y values exposing partial top sections before later updates. - Fixed sub-16 hidden ranges triggering fail-closed incorrectly. - Split chunk masking timings into packet chunk rewrite and chunk update masking metrics. Important: ProtocolLib compatibility matters. Use a ProtocolLib build compatible with your exact Paper/Minecraft version. Full release: https://github.com/DeKaeyman/ChunkVeil/releases/tag/v0.2.3

Initial public beta release. - Added packet-level underground chunk section rewriting. - Added configurable per-world fake blocks and hidden Y ranges. - Added 360-degree view-scan based chunk revealing. - Added hidden block update and block entity update protection. - Added optional underground entity hiding. - Added admin commands, permissions, metrics, debug logging, reload/refresh, and emergency runtime disable. - Added configurable language file. Notes: - Currently targets Paper 1.21.11. - Java 21 is required. - ProtocolLib is required. Use a ProtocolLib build compatible with your Paper/Minecraft version.