mark maglev as EoL

[metalefty]

as the last commit of mavlev is over 3 years ago

Discussed at: #1402 (comment)

[mislav]

This looks good as a mechanism to hide maglev from the list of currently maintained Ruby versions, but I'm curious whether we are using the wrong label for it? When something is "EoL", it's always because the maintainer of the software has proclaimed it to be so. I feel that we are in no position to label something as "EoL", even though by all accounts it does not seem maintained anymore.

Has there been any official announcement of stopping Maglev development?

[metalefty]

Good point. I also think "EoL" should be based on official announcements. Marking maglev as warn_eol a little bit misnomer. AFAIK, there's no official announcements from Maglev team.

I suggested alternate warn_abandoned tag in #1402 (comment) . I think this is better to describe current mavlev state. However, I feel implementing warn_abandoned only to hide mavlev from the list is not worth the effort. That's the reason of this PR. IMO, I know marking maglev as warn_eol is not best but an acceptable workaround.

Differences between warn_*:

• warn_eol
  • officially announced as EoL
• warn_abandoned (suggested by me)
  • considered as abandoned
  • no active developments for a long time with no official announcements

[hsbt]

I decided to merge this. The last commit of Maglev is 4 years ago.