Add parameters task for asking user about job variable values

add cancel all environments

Impove Task Group User Experience

Clone Variable Groups

Release activity in work item history

Allow Task Group parameters to be optional

Releases - I want to ensure 2 people are required to deploy a release to an environment.

Allowing to select branch at runtime of release

Support multiple artifacts from one build definition using build number in the name

Copy tasks and even full pipelines between build and release pipelines