Here's a preview video of what's new in 1.44:
Here's a preview video of what's new in 1.43:
Here's a preview video of what's new in 1.42 (1.41 had no major interface changes):
Here's a preview video of what's new in 1.40:
Here's a preview video of what's new in 1.39:
Here's a preview video of what's new in 1.38 (1.37 was merged with 1.38):