LagFixer

• Fixed an issue where Void items would end up in the Abyss in WorldCleaner module
• Increased default interval in WorldCleaner module
• Added more settings in VehicleMotionReducer module
• Removed unused config path in lang config
• Added new spawn reason to avoid huge farms in EntityLimiter module
• Fixed error on plugin shutdown in ConsoleFilter module
• Fixed enchantment name for newer versions in AbilityLimiter module
• Added support for spigot servers

• Fixed the plugin so it doesn't process errors from other plugins unrelated to LagFixer.

• Fixed the plugin so it doesn't process errors from other plugins unrelated to LagFixer.

• Fixed startup errors, support for other plugins will now work

Updated to the latest LagFixer version. Full changelog: https://modrinth.com/plugin/lagfixer/changelog

• Updated all dependencies to latest version
• Fixed SparkHook (loading after server startup)
• Added skipping the cleanup of worlds with no players
• Rework of reporting errors

• Fixed support for 26.2.x, now MobAiReducer and VehicleMotionReducer should work.

• Updated to NMS support for 26.2
• Few small fixes
• Updated oshi version to 7.3.1
• Added support for missing animals food

Full changelog you can find here: https://github.com/lajczik/lagfixer

• Fixed metrics issue, data wasn't sent
• Removed unnecessary method in LagShield
• Rework for whole nms support

• Migrated from Java 8 to Java 21
• Rework of ItemBuilder, TimingUtil and ConsoleFilterModule
• Updated oshi-core to latest version
• Moved comments from the same line to the top to improve readability
• Changed config loading method to leave default comments and remove unsupported keys
• Fixed the logic of checking if the plugin is enabled
• Added colored plugin header
• Unused configuration templates removed
• Added new feature to WorldCleaner, abyss opening now can play sound

• Restored Java 8 version for each NMS to avoid an error on versions 1.21.4 that resulted from code remapping.
• Fixed an error that blocked the plugin from starting.

• Added NMS support for 26.1.1 and 26.1.2

• Fixed folia 1.21.11 support

• Fixed common issue with folia version which cause crashes
• Updated to latest version
• Added folia 1.21.11 support

• Added NMS support for 1.21.11

• Updated default WorldCleaner config

• Fixed the ignore_models option in the WorldCleaner module.
• Implemented asynchronous plugin reloading for /lagfixer reload to avoid ~2-tick pauses caused by loading extensive configuration data.
• Fixed an issue where items given via /give appeared to “duplicate” and remained on the ground (un-pickable) when disable_item_despawn was enabled.
• Fixed the hardware menu on environments that do not support hardware detection, such as WSL.
• Added new alert settings for WorldCleaner:
  • You can now choose the alert mode (message, actionbar, or both).
  • Added the ability to define the permission required to receive alerts.

Updated to the latest version and all bugs fixed!

• Added new command: /lagfixer free
• Fixed WildStacker API integration for the WorldCleaner module
• Added an option to disable the map in the /lagfixer map feature

• Updated folia to latest lagfixer version
• Optimized EntityLimiter for folia (prespawn check)
• Fixed gui replacements formatting

• Removed alerts from EntityLimiter
• Fixed ExplosionOptimizer explosion damage in management
• Added in ExplosionOptimizer new settings:
  • explosion damage multiplier
  • explosion sound volume
  • explosion knockback multiplier
  • explosion knockback use newton raphson

• Fixed EntityLimiter module, with some plugins with custom spawners the module did not work on spawners

• Updated Updater which now listens to the Modrinth API instead of spigotmc

⚠️ Important Notice

Before updating from version 1.4.28, please verify and adjust your configuration files. Module configurations have been moved from config.yml to separate files located in modules/ModuleName.yml.

Changelog:

• Updated Folia build to the latest plugin version 1.5.1.2.
• Currently tested only on Minecraft 1.21.8.
• Awaiting a Folia fork update to add full support for Minecraft 1.21.10.

• Removed option others in EntityLimiter, this option caused problems, it blocked the itemframe and the dropping of items

• Fixed color formatting in the module list menu. (This was a visual issue only and did not affect the plugin’s functionality)

• Improved subcommand handling for the /lagfixer command.
• Fixed an issue where the module configuration menu stopped working after making changes.
• Optimized the module list and configuration menus by removing the function that cleared and rebuilt the inventory each time; unchanged items now remain persistent between updates.
• Optimized reflection in DeprecatedBukkitSupport for unsupported versions that rely on NMS class adaptation.
• Added a new "others" limit type in EntityLimiter, which restricts the spawning of entities other than creatures, items, vehicles, and projectiles (e.g. armor stands).
• Stopped using Google Commons’ ImmutableList to improve compatibility with older Minecraft versions that do not support this library.
• Fixed an issue in ErrorsManager, which previously failed to report plugin errors properly.
• Changed the resource channel from Alpha to Release.

⚠️ WARNING: This is an alpha release with limited testing. Make sure to back up your config.yml before updating from version 1.4.30!

• Expanded backward compatibility for Minecraft versions 1.13.2–1.15.2.
• Fixed a bug in WorldCleaner that caused named mobs to be removed unintentionally.
• Improved support for unsupported versions through enhanced use of reflection.
• Removed the per-world limit in EntityLimiter, as it was misleading and did not function correctly.
• Added official plugin documentation: https://lajczik.gitbook.io/lagfixer

⚠️ WARNING: This is an alpha release with limited testing. Make sure to back up your config.yml before updating!

• LagShield: Fixed a bug where the module would automatically set the randomTickSpeed value to 0.
• LagShield: Fixed an issue with selecting the correct threshold for the current TPS level.

⚠️ WARNING: This is an alpha release with limited testing. Make sure to back up your config.yml before updating!

• ExplosionOptimizer: Added support for ignoring explosions that do not cause block damage (e.g., Wind Charge).
• LagShield: Introduced the dynamic_tick_speed option, allowing dynamic adjustment of the randomTickSpeed value based on the average TPS over the last 10 seconds.
• Configuration: Adjusted the default configuration to be less aggressive for new users.
• Config Fix: Fixed an issue where the default configuration would not load properly if a path was removed from the config file.
• Compatibility: Fixed support for Spigot-based servers running version 1.21.9+ (the issue did not occur on Paper forks).

⚠️ WARNING: This is an alpha release with limited testing. Make sure to back up your config.yml before updating!

• Fixed support for 1.21.9
• Added support for 1.21.10

⚠️ WARNING: This is an alpha release with limited testing. Make sure to back up your config.yml before updating!

• Fixed kyori componnets (no messages issue)
• Added NMS support to 1.21.9

⚠️ WARNING: This is an alpha release with limited testing. Make sure to back up your config.yml before updating!

• Updated all libraries and fixed issues with kyori components

⚠️ WARNING: This is an alpha release with limited testing. Make sure to back up your config.yml before updating!

• Major rework of the MobAiReducer module configuration – some settings will need to be adjusted.
• Configuration has been split into separate module files – each module now has its own config.
  • Existing settings should be automatically migrated from the main config.
• Added multiple new optimizations and configuration improvements.
• Most config changes no longer require a full server restart – you can now apply them with: /lagfixer reload
• Various performance improvements and code cleanups.

• Bug Fix: Resolved a NullPointerException in the new LagShield module that occurred when it was configured to apply to all worlds on servers where new worlds were being loaded.

• New Plugin Support: Added native compatibility with StackMob, ensuring smoother integration and improved entity handling.
• Map Visualization Improvements: Enhanced the performance and clarity of the /lagfixer map command for more accurate diagnostics and visualization.
• Major Module Overhaul:

• Completely reworked the LagMonitor module, which has now been renamed to LagShield.
• Introduced a more advanced configuration system, allowing fine-grained control over performance optimizations.
• Implemented per-option TPS thresholds: once the defined threshold is exceeded, specific features are automatically disabled.
• Added dynamic adjustments for view distance and simulation distance, improving stability under heavy load.
• Introduced separate NMS implementations for LagShield and removed redundant methods from global NMS support, improving maintainability and modularity.

• Folia version has been updated to the latest version

• NEW! Experimental Module Added: Introduced the new Explosion Optimizer module, designed to intelligently reduce the number of explosions while dynamically adjusting their blast power for improved server performance.
• Enhanced Compatibility: Added full support for ModelEngine and MythicMobs within the following modules: MobAiReducer, WorldCleaner, and EntityLimiter, ensuring seamless integration and extended functionality.
• Stacker System Optimization: Optimized stacker support and implemented a simplified hook management system, enabling easier integration with plugins such as PlaceholderAPI, LevelledMobs, ModelEngine and more.
• Bug Fix: Fixed entity filtering in MobAiReducer during chunk loading, ensuring accurate mob selection and preventing unintended behavior.

• Updated default config of MobAiReducer
• Fixed support for 1.20.5 and 1.20.6
• Disabled debug in WorldCleaner

• Fixed removing creatures in WorldCleaner module

• Fixed module duplication (should few issues be fixed)

• Updated support for UltimateStacker
• Added compatibility with version 1.21.8
• Simplified and improved module storage logic
• Fixed an issue where setting a null value in lang.yml could cause errors

• Fixed unsupported module loading

• Fixed an issue where named mobs were being removed when using WildStacker

• Added support for 1.21.6 and 1.21.7
• Fixed few errors from Bukkit version

• Improved Abyss: now includes paginated views that allow storing all items if they don’t fit on a single page.
• Fixed a WorldCleaner issue where stacked entities were not removed when the “named” option was disabled.
• Added more configurable options to WorldCleaner.
• Added support for Minecraft 1.21.7.
• Fixed Forge server compatibility on the Mohist engine.
• Fixed Spark profiler listener in the plugin monitor.
• Added TPS chart for the map view when MSPT is not supported.

• Fixed Errors manager: some errors were not reported and I couldnt fix them
• Fixed ConsoleFilter module: removed ansi from message
• Fixed WorldCleaner module: added inventory size checking

• Fixed library loading error

• Updated NMS for version 1.21.6 (v1_21_R5)

• Disabled Hardware menu debug
• Added timings in hardware menu
• Fixed exception in LagMonitor (mobai option)

• Updated all dependency libraries to their latest stable versions.
• Improved message serialization for increased reliability and compatibility.
• Disabled the default setting for overflow_purge to prevent unintended behavior.
• Introduced a configuration option to disable config_auto_fix, giving server administrators greater control over config validation.
• Added support for overflow_purge types: named and models, with compatibility for ModelEngine entities.
• Implemented entitytype whitelist functionality for entitylimiter to allow more granular entity management.
• Fixed a concurrency issue in redstonelimiter that could cause unexpected behavior under multithreaded conditions.

• Added support for 1.21.5 NMS
• Updated all dependency libraries to their latest stable versions

• Fixed VehicleMotionReducer module for minecarts with hopper (EntityLoadEvent exception)

• Fixed EntityLimiter new overflow purge option, disabled removing for -1 limit

• AbilityLimiter: Fixed an issue on Spigot servers where setting item cooldowns required synchronization. This issue did not affect Paper servers.
• EntityLimiter: Added the overflow_purge option, which automatically removes excess entities that exceed the per-chunk limits. This helps prevent lag caused by players intentionally spawning large numbers of entities to overload the server.

• Fixed item transfer error in VehicleMotionReducer module
• Disabled VehicleMotionReducer by default in config

• Fixed AbilityLimiter: issue with infinity fireworks in offhand
• Disabled speed_multiplier for elytra in AbilityLimiter
• Optimized SupportManager and removed entity holder, now plugin uses bukkit api (working on NMS)
• Fixed WorldCleaner: issue with removing entities, the plugin didnt take into account every entity on the server

• Fixed and optimized WorldCleaner Module (NMS support)
• Fixed MSPT and TPS monitor for servers without spark (NMS support)

• Removed the outdated vehicle tracking event from MobAiReducer. This had no effect on plugin behavior, as the entity in question was already ignored.
• Fixed an issue causing the plugin to disable itself on servers without support for graphical chart rendering on the map.
• Resolved a performance issue related to overly frequent cleanup of unused objects from internal maps.

• Removed the outdated vehicle tracking event from MobAiReducer. This had no effect on plugin behavior, as the entity in question was already ignored.
• Optimized and fixed world detection during bulk entity loading in both VehicleMotionReducer and MobAiReducer.
• Fixed an issue causing the plugin to disable itself on servers without support for graphical chart rendering on the map.
• Resolved a performance issue related to overly frequent cleanup of unused objects from internal maps.

• Lagfixer version only for folia servers

• Optimized Pathfinder Tempt: Instead of creating a new TargetingConditions object every time, the goal now reuses already prepared ones for each mob. Less object creation = better performance and less garbage collection.
• Faster targeting for versions 1.16.5–1.20.4: Previously, selecting the correct targeting logic used a bunch of instanceof checks O(n). Now it's done using a direct Map lookup O(1), which is much faster, especially with many mobs active.
• More mobs now support tempting behavior for versions 1.16.5–1.20.4: Added missing tempt options for several mobs that weren’t handled before, better coverage and more consistent AI support.
• Fixed pathfinder list sync for 1.16.5: Could cause server crash in some cases.

• Fixed AbilityLimiter module

• Fixed a potential memory leak affecting large servers with a high number of entities
• Added NMS support for Minecraft version 1.16.5
• Introduced an experimental config loader. Note: It is recommended to back up your configuration before launching, as instability may occur
• Updated the WorldCleaner module's message syntax for improved clarity
• Fixed an issue with the /lagfixer reload command not functioning correctly
• Resolved a bug where boat types would default to OAK on versions below 1.21.1
• Fixed compatibility with Paper 1.21.5

• Implemented hardware diagnostics menu accessible via /lf menu, utilizing the OSHI library for system information retrieval
• Resolved compatibility issues with mobchip plugins (e.g., UltraCosmetics) to ensure stable LagFixer integration
• Added configurable SpawnReason filter for ModAiReducer, allowing selective AI reduction based on entity spawn context

• Fixed an issue in RedstoneLimiter that blocked all redstone clocks
• Fixed incorrect world check in InstantLeafDecay
• Optimized world checks to reduce unnecessary calculations

• Fixed CRITICAL bug in VehicleMotionReducer that allows infinite vehicle duplication in Survival mode.
• Added vehicle container to SupportManager

• Fixed a compatibility issue with maps on older Java versions
• Resolved a RedstoneLimiter error caused by an empty EnumSet
• Fixed an AsyncCatcher exception in the VehicleMotionReducer module
• Added experimental feature: "force_load" in VehicleMotionReducer
• Improved error reporting with more detailed diagnostics
• Implemented benchmark results reporting
• Fixed issues with placing rafts and chest rafts
• Optimized the VehicleMotionReducer module for NMS

• Fixed multithreading issues
• Optimized map handling and resolved initialization problems
• Improved error reporting system
• Introduced a new profiler report feature
• Added advanced CPU and memory benchmarking tools
• Implemented a brief error lag-fixer message in the console

• Added support for Minecraft versions 1.21.4 and 1.21.5.
• Updated support for LevelledMobs.
• Renamed CustomAi to MobAiReducer.
• Renamed CustomVehicle to VehicleMotionReducer.
• Removed support for versions 1.13–1.16.5 due to required rework. Mapping issues are causing delays, and additional time is needed for proper implementation.

• Fixed RedstoneLimiter, option break to redstone and pistons
• Fixed player skull texture in /lagfixer menu

• Fix for the latest update to versions 1.21.2 and 1.21.3

• Update nms for 1.21.2 and 1.21.3

• Added projectile limiter to EntityLimiter
• Added spawn reason checking to EntityLimiter
• Added item type blacklist to WorldCleaner
• Added option to disable bukkit item despawn to WorldCleaner
• Added required time of the item to remove to WorldCleaner
• Fixed update manager and config issue

• Added support for RoseStacker and UltimateStacker
• Fixed items being added to the abyss
• Fixed formatting abyss title (text serializer)
• Fixed synchronization in CustomAi module
• Rework for SupportManager, added projectile support
• Working on projectile limiter...

Plugin changes:

• Subcommand changes:

/lf reload (added more informations) /lf map (server load map monitor with mspt chart)

• Added support for 1.21.1, small changes
• And a few other old changes that I forgot about
• Moved methods from NMSUtils to ReflectionUtils
• Fixed misspelled in language file
• Working on full plugin reload...

Thanks for 34600 downloads of plugin! <3

• Added support for 1.21
• Optimized paper support for 1.20.5+

• Fixed worldcleaner for unpickable items (like item display in QuickShop)
• Added ignored entities list for CustomAi
• Renamed AntiClock to RedstoneLimiter
• Added a lot of new options for RedstoneLimiter
• Disabled spark reporting for smaller servers under 20 players
• Added option to enable module for all worlds

• Fixed plugin loading error
• Fixed metrics bStats serverUuid path
• Added more informations for error reporting

• Fixed typo in config for LagMonitor & WorldCleaner
• Fixed LagMonitor, error with async getEntities()

• Added new Module ~ InstantLeafDecay
• Fixed error at ConsoleFilter Module with "ZipUtils"

• Fixed lags caused by desynchronized Collection at EntityLimiter

• Added own api for error reporting, powodzenia

• We have removed support for servers running on Folia-based forks. Support for Folia was highly problematic and significantly limited the capabilities of the LagFixer plugin, especially in terms of increasing the asynchronicity of its methods. Since the engine itself is designed to be asynchronous, LagFixer cannot operate without impacting gameplay by executing on other threads.

• Fixed errors with apache libraries for older server versions, error: java.lang.NoClassDefFoundError: org/apache/commons/io/IOUtils

Updated CustomAI:

• added optimized animal panic pathfinder (1.17+ only)
• added option to disable custom pathfinder
• added option to disable force loading entities pathfinder
• added entity click event message to get informations (disabled by dev)

Updated ErrorsManager:

• replaced webhook library to own api

Fixed library error for forge servers!

• Fixed folia support
• Disabled updating of unviewed menus by players

• Fixed CustomAi error "Asynchronous call getEntities"

• More flexible support for minecraft servers (every reversion nms support)
• Fixed support for paper 1.20.5-1.20.6