This is 1.17.10.1 pre-release 1 and includes textures from Cave & Cliffs update.
 [This update was started from March. 22, 2021]

Additions+
 Spore Blossom texture is now added. (1.16.220)
 Hanging Roots texture is now added. (1.16.220)
 Logs are now added. (universal)