(Changed in version 2.8.0) + creates a new set. Use += to add an element to this set and return that set itself.
(Changed in version 2.8.0) ++ creates a new set. Use ++= to add elements to this set and return that set itself.
(Changed in version 2.8.0) - creates a new set. Use -= to remove an element from this set and return that set itself.
(Changed in version 2.8.0) -- creates a new set. Use --= to remove elements from this set and return that set itself.
Removes old values that have timestamp earlier than threshTime
(Changed in version 2.8.0) Set.map now returns a Set, so it will discard duplicate values.
(Changed in version 2.9.0) The behavior of scanRight has changed. The previous behavior can be reproduced with scanRight.reverse.
(Changed in version 2.9.0) transpose throws an IllegalArgumentException if collections are not uniformly sized.
(Since version 2.8.0) use & instead
(Since version 2.8.0) use iterator' instead
(Since version 2.8.0) use head' instead
(Since version 2.8.0) use headOption' instead
(Since version 2.8.0) use view' instead