A software patch is like a fix or an update for computer programs. It helps to correct bugs, errors, or vulnerabilities in the software. It's similar to a patch you put on clothes to fix a small hole. Full definition
As part of their strategic response, publishers issue software patches or upgrades to fix their programs and eliminate potential security risks. (realtormag.realtor.org)
Once released, games often improve over several generations through downloaded software patches and new editions. (science.sciencemag.org)
They also warned users to update their devices with the latest software patches and regularly change their passwords. (cryptonews.com)