- The latest features and API requires Xcode 8.3 and the bundled macOS SDK;
- Apple Xcode 8.3 requires a Mac running OSX 10.12 (Sierra) or newer;
This release is built upon our open sourced SDK,
d15-4 branch and is based on Mono 5.2 (2017-04).
This is mostly a bug fix releases as most engineering efforts are to support Xcode 9 this fall.
- 56452 - [jit] Optimize ldloc+ldfld operations for valuetypes, so they don't require making a copy of the valuetype
The following documents contains a complete list of the API changes since our previous stable release: