Bumped version: 2.11.0-pre1 -> 2.11.0

bumped version: 2.10.0 -> 2.11.0-pre1

Remove unused global statements

bumped version: 2.9.0-pre1 -> 2.10.0-pre2

bumped version: 2.9.0 -> 2.10.0-pre1

bumped version: 2.8.3 -> 2.9.0

new release -> increment version number

Version Number increment for next release

incremented version number to 2.8.1 for new release

Bumped version: 2.8.0-pre1 -> 2.8.0