There's been a lot of talk about canon opening up their lens mount. The Ordinary Filmmaker did a good job of covering the trials and tribulations over the past few years from Canon enforcing their IP to allowing some third party lens makers to produce RF lenses, but things started to get exciting with an October post by Sony Alpha Rumors.
Sony Alpha Rumors gave us hope in October when they said Canon would open the mount by the end of 2023, but has not updated this story since October, 2023.
But earlier this morning, Canon Rumors said that a distributor has told them that Sigma has a big announcement to make about RF lenses in February, 2024. This announcement will be for several zoom and prime RF & RF-S lenses.
No further details have ben forthcoming. We don't know the focal lengths, the number of lenses or when they will be available. As the number of sourcing coming forward has increased since October, we suspect that we will hear more information in the coming weeks.