I had an email conversation with the authors of Rank Math and they seem to think they are supporting ClassicPress.
Exact quote.
We are supporting WordPress 4.9.8-4.9.9 and thus the ClassicPress.
I have suggested that they state it officially at some point, because it is hard for ClassicPress community to know whether the compatibility is because the initial fork is near identical to WordPress or whether they would have fixed things if there was an issue.
I just gave Rank Math a try this weekend and it seems pretty good but itās definitely challenging to get everything āin the greenā, so to speakā¦
I think this is going to be the case for most existing plugins until CP has a user base large enough to justify the additional effort to specifically support CP.
Itās not about guarantees; itās about intent and perception of viability. Plugin devs will cater to markets they consider viable. WP represents a big market, so I think most plugin devs (unless they decide to throw in the towel or place their bet on CPās just emerging market) will ask āHow high?ā when WP says āJump!ā
Iām testing out SEO Framework. So far, so goodāIt was pretty easy to set up andāwith the help of the SEO Data Transporterāit looks like my canonical URL settings have transferred. I like how the settings are all on one page instead of scattered all over the place. Iām told it doesnāt have the bloat of Yoast. SEO Framework also says that weāre allowed to modify the plugin for ClassicPress.
So I swapped out a client to Rank Math who originally had Yoast Premium and she immediately noticed (oops) so I contacted Yoast to find out if Premium would support WP 4.9.9. The answer from them is:
Itās a bit ironic that the blog post he references is from 2013, but whateverā¦
Hereās the close of that post:
Really, that kind of attitude makes the decision so much easier.