Hey, thanks for the feedback!
A lot of new users to Composer found this view to be overwhelming, and we’ve made some changes since that allows you to move the Composer into an editor tab, or floating bar, which reinforced our decision to remove it at the time.
While we may add this back in the future, you should be able to open the Composer as an Editor using this setting:
Then, you can open a Notebook below, and have your files on the side to show your diff as it edits, like so. We did this to allow more flexibility when laying out your editor, as people with multiple screens or ultra-wide monitor might want it laid out different to someone working on their laptop!
I know the above isn’t the exact layout, but it should be possible to remake the old one exactly how you want with the flexibility of editor layouts!
Is there something missing here you’d like to do that isn’t possible with this setup?