How to properly update Bolt when class was removed?

When a class gets removed, the reflected units that used this class will show an error like described in this page:

https://support.ludiq.io/forums/4-bolt-manual/topics/160-reflection-failure/

In the next minor version (v.1.3), refactoring attributes will be introduced to allow you to rename a class without breaking any of your graphs. It will probably be as simple as adding [Renamed("oldName")] to your renamed class or member.