They Added Climate Change to Minecraft

This update brings a new Environment API implementation to Frostiful. Temperatures are now calculated for each biome in Celsius (though can work with other units), and then converted to temperature points. Nearly all aspects of the environment can now be configured by modpack and datapack authors, from what the temperature in a biome is to exactly how deadly that temperature will be to players. As this is a very large change to many parts of Frostiful, this update is being released as a beta first.

This update is a breaking change for many existing configs.

Almost all existing behaviour should remain the same, this is mostly an internal update. However, you may still want to read up on the new temperature system on the new and updated wiki: https://modded.wiki/w/Frostiful:Temperature_System

A New Wiki!

The Frostiful wiki is moving! It is being split between two sites: a developer-focused wiki that provides the technical documentation for components, tags, and the config file; and a player-focused content wiki with more opportunity for community contribution. The old wiki is still the "official" wiki at the time of writing, however, some pages have already moved and more will be moving soon. You can find these wikis at the following links:

Player Wiki: https://modded.wiki/w/Mod:Frostiful
Developer Docs: https://frostiful.thedeathlycow.com/
Thermoo Developer Docs: https://thermoo.thedeathlycow.com/

Additions

Added a new Environment Frost Resistance attribute to Fur and Netherite Armor. This attribute applies exclusively to environment-based temperature changes. Frost Resistance no longer applies to the environment temperature at all.
Environment Frost Resistance represents the probability to "dodge" an environment temperature change each tick, and is represented on a 0-1 scale. For example, 1 Environment Frost Resistance = 100%, and 0.5 = 50%. This provides more nuance to the usually much smaller, but more frequent, environment temperature changes that previously were difficult to resist with Fur Armor.
Frost Resistance and Environment Frost Resistance can now be configured per-item (and per-stack) using the item component frostiful:frost_resistance. See the config wiki page for the format: https://frostiful.thedeathlycow.com/components/#frost-resistance
Being wet now removes all Environment Frost Resistance
The existing Armor Material Tags will still work; they will simply apply the Frost Resistance component to any new stacks that don't have the component and have a tagged material.
Packed Snow with 2 or fewer layers will now decay quite quickly into regular snow when the temperature is above freezing (0°C/32°F).

Changes and Fixes

Temperatures are now less extreme when configuring the strength of cold biomes.
Temperature can now be configured for all dimensions.
The seasonal temperature tags have been moved to #frostiful:is_climate/* and #frostiful:is_not_climate/* tags. These should still be backwards compatible with the Spring tags, however other tags have been fully removed without replacement. Furthermore, Spring tags may be removed from backwards compatibility in the future if this causes too much trouble.
The End is now a constant 15°C / 59°F and has a relative humidity of 15%.
Temperatures at or below 10°C are cold, and the cold intensity increases by -1 temperature per tick per 10C° that the temperature decreases.
The "dry biomes" feature was moved to Scorchful, however Frostiful is still required for these biomes to apply freezing
The freeze damage temperature effect has been more efficient

Config Version 3

CONFIGS WILL BE RESET IF UPDATES ARE NOT DISABLED!

Many config options and tags have been removed. As many as possible have been maintained, however some removals were inevitable with such a massive overhaul. The removed config options and datapack tags, as well as their replacement, are documented on the config wiki: