The phrase "to apply the patch" means to fix a problem or update a software or computer program by adding a small piece of code or program. Full definition
This experience led him to adopt a more relaxed handling of colour pigments, using swiftly applied patches of bright colour. (visual-arts-cork.com)
This could put businesses and other's in a sticky situation of either having to accept the risk of not applying patch updates or doing so and potentially disrupting mission critical apps. (bitcoinist.com)
Apply patch before consuming alcohol and the sustained release will provide 8 hours of nutritional protection. (drvitaminsolutions.com)