Support for the new build was added in 7+ Taskbar Tweaker v5.1.

Fixed in v5.1.

Fixed in v5.1.

Can you please clarify what the issue is?

If you hide the start button, then obviously you cannot click it to open the start menu, regardless of whether Classic Shell is installed.

I don't completely understand which kind of drag'n'drop you are talking about. Can you provide a screenshot?

Also, what's your Windows version, and 7TT version?

Perhaps it's a Classic Shell issue. I'll look at it when I have the time.

Probably a duplicate of:

http://tweaker.userecho.com/topic/1026674-7-taskbar-tweaker-not-working-properly-after-latest-nov-2015-windows-10-major-update/

Please try the latest beta version of 7+ Taskbar Tweaker.

Build 10586 is not supported at this time. Closing as a duplicate of:

http://tweaker.userecho.com/topic/1026674-7-taskbar-tweaker-not-working-properly-after-latest-nov-2015-windows-10-major-update/

Currently this build is not supported.

http://tweaker.userecho.com/topic/1026674-7-taskbar-tweaker-not-working-properly-after-latest-nov-2015-windows-10-major-update/