In 2017, development forked into two versions, known as "Gazebo", the original monolithic architecture, and "Ignition", which had moved to becoming a modernized collection of loosely coupled libraries.
[1] Gazebo Classic integrated the ODE physics engine, OpenGL rendering, and support code for sensor simulation and actuator control.
[1] In April 2022, following a trademark dispute, the Ignition brand name was retired, and was reverted to Gazebo.
Open Robotics mentioned the need for significant modernization in Gazebo's code, together with the opportunity to move from a monolithic architecture to a collection of loosely coupled libraries.
2012 to 2015 2016 to 2017 2016 to 2017 2016 to 2023 The National Institute of Standards and Technology (NIST) put on the first ARIAC Competition in June 2017.