OPL Version History

OPL 2.6.1

July 2, 2025

OPL 2.6.0

July 1, 2025

OPL 2.5.1

March 1, 2025

OPL 2.4

August 12, 2024

OPL 2.3

April 23, 2023

OPL 2.2

April 12, 2022

OPL 2.1

February 14, 2021

OPL 2.0

December 15, 2020

OPL 1.9

December 9, 2020

OPL 1.8

September 16, 2020

OPL 1.7

June 23, 2020

OPL 1.6

June 7, 2020

OPL 1.4

June 4, 2020

OPL 1.3

May 21, 2020

OPL 1.2

May 16, 2020

OPL 1.1

May 14, 2020