Time Shift button disappeared in version 3.1.2

Time Shift button, which moves selected sound clips disappeared in Audacity 3.1.1 and 3.1.2 versions. To use it, I needed to downgrade to version 2.4.2. Are there any commands where it can be re-enabled, or was it, in fact, a bug?

See this announcement: Time Shift Tool (F5) removed