olemus
(1) tootearenduse poliitika, mis taotleb kasutamise stabiilsust,
eriti lähtekoodtarkvara puhul
= product lifecycle management policy in which a stable release of the product is maintained for a longer period of time

(2) pika perioodiga tugi, mis vastab sellel poliitikale,
näiteks Ubuntu puhul 5 aastat tavalise 9 kuu asemel
= support according to this kind of policy

ülevaateid
https://en.wikipedia.org/wiki/Long-term_support

https://wiki.ubuntu.com/LTS

https://askubuntu.com/questions/16366/whats-the-difference-between-a-long-term-support-release-and-a-normal-release

https://thenewstack.io/linux-projects-can-treach-long-term-support-releases/