Again, I'm inferring that you mean by regulations. After the 1990s, the next round of prohibitions occurred in May 2020, when nine families of assault-style firearms were added to the regulations and two categories were added to the regulations, those firearms that produced a muzzle energy greater than 10,000 joules and those firearms that had bore diameters in excess of 20 millimetres.
On December 8th, 2022. See this statement in context.