clay: allow successive upgrades
::
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
=| :: instrument state
- $: ver=%7 :: vane version
+ $: ver=%8 :: vane version
ruf=raft :: revision tree
== ::
|= [now=@da eny=@uvJ rof=roof] :: current invocation
|= old=raft-any
|^
=? old ?=(%6 -.old) 7+(raft-6-to-7 +.old)
- ?> ?=(%7 -.old)
- ..^^$(ruf (raft-7-to-8 +.old))
+ =? old ?=(%7 -.old) 8+(raft-7-to-8 +.old)
+ ?> ?=(%8 -.old)
+ ..^^$(ruf +.old)
:: +raft-6-to-7: delete stale ford caches (they could all be invalid)
::
++ raft-6-to-7
