In preparation for some changes that we have made in the next major version of OpenLP we had to make a change in the last release (2.0.2) in the way that service files are saved. With OpenLP 2.0.2 and higher, you will still be able to read your old service files, but earlier versions of OpenLP will not be able to open files created in later versions of OpenLP.
For example, OpenLP 2.0.2 will be able to open services files saved in OpenLP 2.0.1, but OpenLP 2.0.1 will not be able to open services files saved in OpenLP 2.0.2.
Unfortunately a bug was introduced preventing services that had notes in them from being saved. We have already fixed this and plan to make a release (2.0.3) to address this issue in the near future. If you wish to use notes we suggest that you do not upgrade to 2.0.2.
We thank you for your patience in this matter and apoligise for this bug. Steps are being taken including automated testing in 2.2 to reduce the chances of bugs like these slipping in the future.