olemus
(a) paik, mis listakse töötavale süsteemile
ta käitust katkestamata
= a fix of the live system without creating downtimes or outages

(b) eripaik, mis luuakse ja levitatakse kiirkorras
mingi vea kõrvaldamiseks
= an urgent measure against issues that need to be fixed immediately and outside of normal procedures

(c) paik, mis luuakse erandkorras
(mingi organisatsiooni, konfiguratsiooni vm)
konkreetse probleemi lahenduseks, laiemalt levitamata
= a software update designed to remediate a very specific operational or security issue

(d) = paik

ülevaateid
https://softwareengineering.stackexchange.com/questions/288935/difference-between-hotfix-and-bugfix/288940

https://fanzhongzeng78.medium.com/what-is-a-hotfix-89ee445ed3b

https://en.wikipedia.org/wiki/Hotfix

https://heimdalsecurity.com/blog/what-is-a-hotfix/