The most immediate improvement users will notice is the acoustic profile. The previous firmware revision managed the thermal load reactively—waiting until the chip hit critical temperatures before ramping fans up to 100%.
However, if your device works perfectly on the stock firmware, do not fix what isn't broken. The "better" is relative. Always read changelogs. If the new firmware only adds support for a feature you don't use (like PIP or PBP), stick with the stable release. mnt686763 firmware better
Look at the sticker on the back of your LCD (e.g., LP156WH4). The most immediate improvement users will notice is
A “better” firmware means: