The markdown parsing is broken/disabled for release notes. Sorry about that, I'm chasing the source of a crash that's been bringing this website down for the last couple of days.
* update Swift version 5.1
## TL;DR
* update Swift version ( 4.0 -> 4.2 )
## Bug fixes
* Fix timing function reference by @metabren #9
fixed for Swift 4.2.
* Fixed compile error on Xcode10 with Swift 4.2.
* Remove Swift3 support