Mineshafter Changelog
What's new in Mineshafter 04.11.2017 Update
Nov 8, 2017- Skins should now be working with the latest build.
- You may need to delete the launcher_profiles.json and usercache.json from your .minecraft directory again.
New in Mineshafter 27.10.2016 Update (Oct 31, 2016)
- Skins work again