If you have a verified MAME 0.159 set, and you want to update to MAME 0.160 later, you don't need to download the whole set again. You can download a "Rollback" set (a set of files removed or changed between versions) and rebuild your new set. However, for MAME 2014, usually, a fresh download of the specific 0.159 set is easier for most users.
Which (e.g., RetroArch, EmulationStation, CoinOPS) are you using to manage your games? mame 2014 reference set mame 0159 roms chds verified
Single-board computers (SBCs) like the Raspberry Pi 3 and early Pi 4 models rely heavily on the lr-mame2014 RetroArch core to achieve steady 60 FPS performance on 90s-era arcade titles. If you have a verified MAME 0
You do not need to trust a pre-verified label. You can (and should) verify any set yourself. Which (e

If you have a verified MAME 0.159 set, and you want to update to MAME 0.160 later, you don't need to download the whole set again. You can download a "Rollback" set (a set of files removed or changed between versions) and rebuild your new set. However, for MAME 2014, usually, a fresh download of the specific 0.159 set is easier for most users.
Which (e.g., RetroArch, EmulationStation, CoinOPS) are you using to manage your games?
Single-board computers (SBCs) like the Raspberry Pi 3 and early Pi 4 models rely heavily on the lr-mame2014 RetroArch core to achieve steady 60 FPS performance on 90s-era arcade titles.
You do not need to trust a pre-verified label. You can (and should) verify any set yourself.