2.1.0

Adds the following operators:

• AtMost
• CountBetween
• Exactly
• FillBackward
• FillForward

The following are now obsolete:

• Incremental
• ToDelimitedString (only overloads with zero arguments)

See also:

• 2.1.0 milestone for changes in this release
• Commit history since 2.0.0