Dorico 4 is finally here with lots of useful and exciting new features and I’m as grateful to the team as anyone for making it all happen. The only real minus is that we’ve lost (in most cases temporarily) some features from the old Play window. As several have already pointed out, the most critical is probably the dynamics lane which makes dynamic editing far faster and more intuitive than the manual workaround currently in place.
In view of this, I’m wonder how feasible it is to simply switch between D3.5 and 4 for editing? Unlike most other apps, Dorico will open files created in a newer version in the older one and in my limited experimentation to date, it’s been possible to switch between them without any issues. But there are bound to be edits you make in D4 which will get lost if you save in D3.5 and I’m wondering what in particular one should look out for and should perhaps avoid making in D4 at present until the transition to making the new key editor is complete with previous functionality restored (and of course in time new features added).