...huh...I did not even see the Synth Rack View in the new version. Glad you posted.
With the new way to open up a synth by clicking on the track icon I really did not feel a need to keep the synth rack open, I thought it was gone in 2016-11. At 1st I thought I was going to miss it. If the synth is something I keep working on I "multi-dock" it for quick access.