Plan for GHC 8.6.1

Hello fellow lazy purists, With GHC 8.4.2 out the door, it is time to begin looking forward to 8.6.1. In keeping with our six-month release schedule, this release will be targetted for early-September, with the stable branch being cut in mid-to-late June. Remarkably, this is only 6 weeks away. If you have patches that you would like to see in 8.6.1, please do put them up on Phabricator and the 8.6.1 status page [1] in the coming weeks to ensure that there is sufficient time for review. If you have a patch which you are concerned won't make the cut-off, do say something. Cheers, - Ben [1] https://ghc.haskell.org/trac/ghc/wiki/Status/GHC-8.6.1