It has proven helpful in resolving some server connectivity issues so I have added it back in.
Updated mods to the latest version at time of writing
Clifftree is still on v1.7 though as the 1.21.1 update hasn't arrived yet.
Adjusted some Incontrol spawn rules to only be active in their specific seasons to help performance.
Allowed passive mobs to spawn in oceans and river biomes during the winter.
This is mainly to ensure that aquatic mobs can still spawn.
Increased the spawn rate of passive mobs in tropical biomes during winter.
This simulates animal migration but also ensures that tropical biomes stay a reliable source of passive mobs in the winter.
Changes added via Seasonal Integration
Added Vanilla's Pale Garden to the "spooky" and "dead" biome tags to make dynamic surroundings give it dense fog and barely any ambience.
Added Clifftree's Warm Caves and Yung's Cave Biomes's Lost caves to variants and venture's "deserts" tag to ensure that desert variant mobs can spawn there.
Added Clifftree's Mushroom Caves to the "is_mushroom" tag.
Added Jungle Variant mobs to Lush Caves
This is experimental and may well get removed in the next update.
This has been added via the modpack's internal datapack rather than through seasonal integration due to it's experimental nature.
Fixed Modded Cave biomes not being recognised by Traveller's Titles as underground biomes.
Fixed an issue where Pet Cemetery was mysteriously missing from the Modrinth version of the modpack.