[ghc-steering-committee] Please review #601: Extension lifecycle, Shepherd: Simon PJ

Dear Committee, David Thrane Christiansen suggested to categorize extensions into Experimental, Mature, Deprecated and Legacy, and add warning flag to GHC that allow users to be warned about (or shouted at for) using such extensions, if they choose so. https://github.com/ghc-proposals/ghc-proposals/pull/601 https://github.com/david-christiansen/ghc-proposals/blob/extension-lifecycle... Because of the meta-like aspect of this proposal, I’d like to assign this to Simon PJ. Please guide us to a conclusion as outlined in https://github.com/ghc-proposals/ghc-proposals#committee-process Cheers, Joachim -- Joachim Breitner mail@joachim-breitner.de http://www.joachim-breitner.de/