Yesterday a friend of mine discovered and filed a bug that highlights a backwards incompatibility introduced by 1.18.
The bug is "Moved ArticleSave hook breaks backward compatibility" (https://bugzilla.wikimedia.org/32318).
I found a number of public functions in the Article class that are not directly supported in WikiPage.
To be clear, I don't know how widely those public functions are used. They may be inconsequential. It may be only my friend who is likely to run into a problem on upgrading.
So my question: is this problem worth holding back a 1.18 release while we implement any missing functionality?
Mark.