Thanks for reminding me. I have had a build for 4.x but had forgotten to upload it.
The attached beta has the following changes:
- Fix: Problem when couldn't get old annotations.
- Fix: Support calibre version 4. Use QTextEdit instead of QWebView. Should be compatible with 3.x.
This seems to be compatible with calibre 3.x. I have only tested a couple of the more recent builds, but it should be OK. It might not be compatible with calibre version 2. If anyone tests the older versions, please tell me the results.
It will partly fix the problem reported by @Kicweed. It will not error, but, the existing annotations will probably be lost. I am still thinking about how to best handle this.