By updating in5 to 3.7.8, I found an issue with missing "soft line break" within paragraph text (SHIFT+RETURN).
Regular line break works as expected, but it apply paragraph space, so I have always use "softLineBreak" (SHIFT+RETURN) and in5 transfer it to html as "<br>".
PS: I really appreciate your efforts to make in5 better and better, but please also take care, about excellent in5 legacy functionalities. You can imagine in5 users headache, while dealing with issues caused by in5 update functionality details.