Passive Skill Trees Fabric

Changelog – v1.21.5

Networking

• All network messages migrated from FriendlyByteBuf to RegistryFriendlyByteBuf (required for registry-aware packet encoding/decoding in 1.21.5).

Data & NBT

• Updated all NBT reading across the mod (skills, bonuses, requirements, predicates, recipes) to the new CompoundTag API, where getString/getInt/getBoolean/getFloat/getDouble/getCompound/getList now return Optional<T> instead of raw values.
• Tag#getAsString() renamed to Tag#asString().

Loot & Enchantments

• LootContext#hasParam/getParam renamed to hasParameter/getParameter.
• Replaced the removed EnchantmentHelper.getEnchantmentLevel(...) with ItemStack#getEnchantments().getLevel(...).
• Adjusted for the removal of entity constants from BuiltInLootTables.

Crafting & Items

• Adjusted recipe classes for the removal of CraftingRecipe#getResultItem(...) from the Recipe<T> interface.
• Updated Ingredient#items() usage (now returns a Stream directly).
• Adjusted ItemStack#onCraftedBy to its reduced (Player, int) signature.
• Updated CreativeModeTab.builder(...) for its new required row/column parameters.

Client / GUI

• Adjusted Screen#renderBackground overrides to the new single-parameter (GuiGraphics) signature (skill tree, skill tree editor, and selection screens).
• Removed obsolete RenderSystem.enableBlend()/disableBlend() calls (blending is now handled by the render type directly).
• Adjusted for the removal of Button#setActive(boolean), now using the active field directly.