The v1.5 patch introduced new hash tables. Older language packs would cause a "Corrupted archive" error. The correct v1.5 pack has updated hash values to match the game’s new executable.
Managing language packs for Cyberpunk 2077 , specifically for versions associated with the release (v1.5), typically involves manual configuration of internal game files or utilizing regional support features. cyberpunk 2077 language pack v1 5codex
To make the game recognize the new language as the default, you must modify the steam_emu.ini or codex.ini file located in the game's executable folder. Go to: Cyberpunk 2077\bin\x64 . The v1