fefro_logros_1.0.0_1.21.8.zip is a release file of the Minecraft data pack FefroAdvancement, made for Minecraft 1.21.8. It was published on September 1, 2025 and is 0 MB in size. For the full description, screenshots and every other version, visit the FefroAdvancement data pack page.
How to install: Put the .zip into the datapacks folder of your world (.minecraft/saves/<world>/datapacks) and run /reload. No mods needed.