In what way is 5.8.0 "ossified"? I swear you're just making up terms now :P ...
verb
past tense: ossified; past participle: ossified
1.
turn into bone or bony tissue.
"these tracheal cartilages may ossify"
synonyms: turn into bone, become bony, calcify, harden, solidify, rigidify, petrify
"the cartilage may ossify"
2.
cease developing; be stagnant or rigid.
"ossified political institutions"
synonyms: become inflexible, become rigid, fossilize, calcify, rigidify, stagnate
"the old political institutions have ossified"
... it would seem to me by whatever logic is employed, the same thing will occur at 10.0 because the version format may "appear" to change (with 2 leading digits now).
Ohh ... maybe you're saying the 5 hasnt changed in ages, well now was a silly time to change it still because they were .2 releases until it did change, which was mentioned by the other poster that mysql has already used versions 6 and 7 prior ....
I still don't agree that ossified is a valid usage in this case (it was still .2 releases from changing) -- when the original x.y.z versioning scheme was defined it was understood that there could be 0-N minor "y" updates before X is incremented; that's by definition not ossification, simply the versioning scheme at work.
geez. what a mess versioning is ... :P