What's wrong with this entry?
The "max" effort level description has been simplified from "Maximum capability with deepest reasoning (Opus 4.6 only)" to just "Maximum capability with deepest reasoning", reflecting that max effort is no longer restricted to Opus 4.6.
String change in $p_ (search for "Maximum capability with deepest reasoning")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
Related
Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.