• Check version of workers when they connect. Warn if there is a mismatch, refuse 1.x workers to connect #1805 (2.0.0b1)
• Change the default User weight to 1 instead of 10 #1803 (2.0.0b1)
• Upgrade to flask 2 #1764 (2.0.0b1)
• Move User selection responsibility from worker to master in order to fix unbalanced distribution of users and uneven ramp-up #1621 (2.0.0b0)