2025r18 is a release file of the Minecraft resource pack Classic Faithful 32x, made for Minecraft 1.21.9, 1.21.9-snapshot. It was published on October 1, 2025 and is 12.4 MB in size. For the full description, screenshots and every other version, visit the Classic Faithful 32x resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.