A few more items:
Standardising on 'OK' for all base language uses (rather than 'Ok', or 'Okay').
It's perceived as the 'most correct' variant, and importantly having a single variant is best from a translation perspective.
Added plurality handling for multiple PPU caches created.
Added plurality handling for multiple items deleted in save manager.
Capitalised trophy grade to align with Sony terminology.
Brought trophy name position into translatable string (for languages that might really want to deviate from SVO)