• The recent changes to support importing of libraries caused a number of issues with library resolution which are now fixed.
• Toggle Hidden Files had also suffered from the changes and is now working correctly.
• This is an important release in terms of stabalization of changes from arduino 1.6.11, atmel studio (affects VS) and new functionality surrounding the use of .cpp instead of .ino files
• Note about arduino 1.6.11. It seems to be deleting the package_index.json from the contributions folder at times. This causes compiler errors with tools failing to be resolved. You can repair the issues by opening the visual micro board manager (via the Visual Micro Explorer) and click the Rescan button (sometimes twice).
• Recommended update for all users.

Outstanding items

1) Compiler cache is recompiling too often
2) Platforms with any ToolDependancies such as as Adafruit Trinket resolve to the wrong gcc tool (version).
3) Deleting previously compiled code without remiving #includes. The objects files are still found by the compiler until a "Clean" or "Rebuild" event occurs. Can be confusing and will be fixed  asap
4) There will be a minor update later this week with these issues resolved and it is hoped we are then back onto a stable release. 

Sorry for anyone who has been affected during the transition, please do report to the forum where there is usually a workaround.

Thanks to all for the feedback.