Hello,
we just started process to release tesseract version 4.1.0, which should be bug fix release mainly.
Because there were changes in ABI/API[1] we need to increase version number based on semantic versioning rules.
So if you have any update, bugfix that you would like to see in 4.1.0, please submit is ASAP as pull request or send me the patch.
Also please report any regression of current code to 4.0.0 version (in issue tracker with testing case).
It would be great if somebody can go through all open issues, re-test them (if possible) and point to those which should be fixed for 4.1.0 version.