For those who are a bit nervous about upgrading to BF4.1, the video below by JB shows you what settings are safe to copy across from a previous version of Betaflight. I've also included a link to this video in the main BF4.1 thread along with all the other relevant videos (HERE).

Don't forget that if you use Smart Audio or Tramp to change your VTX settings then after upgrading to BF4.1 you will also need to configure VTX tables. How to do that can be found in another of JB's videos HERE.



And these are some additional longer videos taking you though the whole upgrade process from start to finish with more detailed explanations along the way...