As far as I can tell, we introduced ParserOptionsRegister (in 1.30) as a better method to register your parser hash modifications. For that reason, we should probably officially deprecate this older hook.
https://codesearch.wmflabs.org/search/?q=PageRenderingHash&i=nope&files=&repos=
- Math
- MobileFrontend
- TimedMediaHandler
3rd party
- SpriteSheet
- PageOwnership
- Tweeki
- VisualData