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Wiktionary:
7. (computing) To make the changes a patch describes; to apply a patch to the files in question. Hence:
7.1 To fix or improve a computer program without a complete upgrade.
7.2 To make a quick and possibly temporary change to a program.

ülevaateid
https://www.campbellsci.com/faqs?v=1482

https://kb.iu.edu/d/algb

https://stackoverflow.com/questions/269352/patch-vs-hotfix-vs-maintenance-release-vs-service-pack-vs

https://www.socallinuxexpo.org/scale12x-supporting/default/files/presentations/intro-to-patching.pdf

https://queue.acm.org/detail.cfm?id=1053343

https://www.alvaka.net/software-patching-best-practices-18-must-do-tips/

https://nvlpubs.nist.gov/nistpubs/specialpublications/nist.sp.800-40r3.pdf

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