BadOptimizations

3/25/2026:

• Port to 26.1
• Fabric and NeoForge variants are no longer combined into one jar
  • This may revert in the future

Version 2.4.1:

• Migrate to Mojang Mappings
• Change some comments in the config file
• Update to 1.21.11
  • Sky color is now data driven making sky color caching infeasible so it's been removed
  • Lightmap caching remains but no longer directly uses time as a factor, so lightmap_time_change_needed_for_update no longer has any effect
  • These changes don't apply to 1.21.10-

3/25/2026:

• Port to 26.1
• Fabric and NeoForge variants are no longer combined into one jar
  • This may revert in the future

Version 2.4.1:

• Migrate to Mojang Mappings
• Change some comments in the config file
• Update to 1.21.11
  • Sky color is now data driven making sky color caching infeasible so it's been removed
  • Lightmap caching remains but no longer directly uses time as a factor, so lightmap_time_change_needed_for_update no longer has any effect
  • These changes don't apply to 1.21.10-

Version 2.4.1:

• Migrate to Mojang Mappings
• Change some comments in the config file
• Update to 1.21.11
  • Sky color is now data driven making sky color caching infeasible so it's been removed
  • Lightmap caching remains but no longer directly uses time as a factor, so lightmap_time_change_needed_for_update no longer has any effect
  • These changes don't apply to 1.21.10-

Version 2.4.1:

• Migrate to Mojang Mappings
• Change some comments in the config file
• Update to 1.21.11
  • Sky color is now data driven making sky color caching infeasible so it's been removed
  • Lightmap caching remains but no longer directly uses time as a factor, so lightmap_time_change_needed_for_update no longer has any effect
  • These changes don't apply to 1.21.10-

Version 2.4.1:

• Migrate to Mojang Mappings
• Change some comments in the config file
• Update to 1.21.11
  • Sky color is now data driven making sky color caching infeasible so it's been removed
  • Lightmap caching remains but no longer directly uses time as a factor, so lightmap_time_change_needed_for_update no longer has any effect
  • These changes don't apply to 1.21.10-

Version 2.4.1:

• Migrate to Mojang Mappings
• Change some comments in the config file
• Update to 1.21.11
  • Sky color is now data driven making sky color caching infeasible so it's been removed
  • Lightmap caching remains but no longer directly uses time as a factor, so lightmap_time_change_needed_for_update no longer has any effect
  • These changes don't apply to 1.21.10-

Version 2.4.1:

• Migrate to Mojang Mappings
• Change some comments in the config file
• Update to 1.21.11
  • Sky color is now data driven making sky color caching infeasible so it's been removed
  • Lightmap caching remains but no longer directly uses time as a factor, so lightmap_time_change_needed_for_update no longer has any effect
  • These changes don't apply to 1.21.10-

Version 2.4.1:

• Migrate to Mojang Mappings
• Change some comments in the config file
• Update to 1.21.11
  • Sky color is now data driven making sky color caching infeasible so it's been removed
  • Lightmap caching remains but no longer directly uses time as a factor, so lightmap_time_change_needed_for_update no longer has any effect
  • These changes don't apply to 1.21.10-

Version 2.4.1:

• Migrate to Mojang Mappings
• Change some comments in the config file
• Update to 1.21.11
  • Sky color is now data driven making sky color caching infeasible so it's been removed
  • Lightmap caching remains but no longer directly uses time as a factor, so lightmap_time_change_needed_for_update no longer has any effect
  • These changes don't apply to 1.21.10-

Version 2.4.1:

• Migrate to Mojang Mappings
• Change some comments in the config file
• Update to 1.21.11
  • Sky color is now data driven making sky color caching infeasible so it's been removed
  • Lightmap caching remains but no longer directly uses time as a factor, so lightmap_time_change_needed_for_update no longer has any effect
  • These changes don't apply to 1.21.10-

Version 2.4.0:

• Other mods can now add cache hooks that tell BadOptimizations when to update the lightmap/skycolor. See https://github.com/imthosea/BadOptimizations/wiki/Adding-lightmap-skycolor-caching-hooks
  • Add new config option "ignore_mod_cache_hooks" to ignore loading these hooks (not recommended)
• Fix incorrect Minecraft version requirements on some releases
• (1.21.10+) Use proper API for adding debug HUD entries

Version 2.4.0:

• Other mods can now add cache hooks that tell BadOptimizations when to update the lightmap/skycolor. See https://github.com/imthosea/BadOptimizations/wiki/Adding-lightmap-skycolor-caching-hooks
  • Add new config option "ignore_mod_cache_hooks" to ignore loading these hooks (not recommended)
• Fix incorrect Minecraft version requirements on some releases
• (1.21.10+) Use proper API for adding debug HUD entries

Version 2.4.0:

• Other mods can now add cache hooks that tell BadOptimizations when to update the lightmap/skycolor. See https://github.com/imthosea/BadOptimizations/wiki/Adding-lightmap-skycolor-caching-hooks
  • Add new config option "ignore_mod_cache_hooks" to ignore loading these hooks (not recommended)
• Fix incorrect Minecraft version requirements on some releases
• (1.21.10+) Use proper API for adding debug HUD entries

Version 2.4.0:

• Other mods can now add cache hooks that tell BadOptimizations when to update the lightmap/skycolor. See https://github.com/imthosea/BadOptimizations/wiki/Adding-lightmap-skycolor-caching-hooks
  • Add new config option "ignore_mod_cache_hooks" to ignore loading these hooks (not recommended)
• Fix incorrect Minecraft version requirements on some releases
• (1.21.10+) Use proper API for adding debug HUD entries

Version 2.4.0:

• Other mods can now add cache hooks that tell BadOptimizations when to update the lightmap/skycolor. See https://github.com/imthosea/BadOptimizations/wiki/Adding-lightmap-skycolor-caching-hooks
  • Add new config option "ignore_mod_cache_hooks" to ignore loading these hooks (not recommended)
• Fix incorrect Minecraft version requirements on some releases
• (1.21.10+) Use proper API for adding debug HUD entries

Version 2.4.0:

• Other mods can now add cache hooks that tell BadOptimizations when to update the lightmap/skycolor. See https://github.com/imthosea/BadOptimizations/wiki/Adding-lightmap-skycolor-caching-hooks
  • Add new config option "ignore_mod_cache_hooks" to ignore loading these hooks (not recommended)
• Fix incorrect Minecraft version requirements on some releases
• (1.21.10+) Use proper API for adding debug HUD entries

Version 2.4.0:

• Other mods can now add cache hooks that tell BadOptimizations when to update the lightmap/skycolor. See https://github.com/imthosea/BadOptimizations/wiki/Adding-lightmap-skycolor-caching-hooks
  • Add new config option "ignore_mod_cache_hooks" to ignore loading these hooks (not recommended)
• Fix incorrect Minecraft version requirements on some releases
• (1.21.10+) Use proper API for adding debug HUD entries

Version 2.3.4 (1.21.10-only):

• Fix crash on Neo when reading specific internal files
• Remove support for 1.21.9

Version 2.3.3 (1.21.9/1.21.10-only):

• Fix stuttering with end flashes when lightmap caching was enabled