Four seasons of a split format will end after next year when the entire field adopts a control ECU.

At present, teams still running to Factory specification develop their own electronics, while those running to Open class rules – including the works Ducati team – already run control ECUs but get other rules breaks regarding engine development, tyre compounds and fuel allowance.

The Grand Prix Commission agreed at Misano this weekend that software development would be prohibited after June 30 next year.

“After that date manufacturers will not be permitted to update their software except for minor bug fixes that might affect safety,” said a statement from the commission.

From then on the current manufacturers will collaborate on developing what is being referred to as the “unified” software for 2016. This will be based on the control ECU used by Open runners.

An exception will be made for returnees Suzuki and Aprilia, both of which will be back in MotoGP next year.

“Manufacturers not currently participating may continue to use and develop their own software throughout 2015 but may also be invited to participate in the development of the unified software,” said the statement.