Also, SE 3.5.18 is out a few days ago:
https://github.com/SubtitleEdit/subtitleedit/releases
A few entries from the change log:
- Add "Center, left justify dialogs" to export images - thx Benjamin
- Improve ASSA/SSA preview - thx Mounter81
- Allow for .mpg/.mpeg transport stream file extension in "Batch convert"
- Fix crash in export image with font tag - thx Jake
- Fix batch convert of Blu-ray sup file to VobSub - thx John