Aerosoft has recently announced a delay of their rendition of CRJ900/1000 for Microsoft Flight Simulator. This information has been shared through their forums.
This delay has been caused due to technical issues. Therefore, the rendition of these two aircraft will be released either in September or October of this year. The developer hasn’t shared any further information regarding what exactly caused the delay.
In the second part, the developer spoke about the update of the CRJ550/700 rendition for the same simulator. The developer has stated in the same forum post, that these two aircraft are now compatible with Sim Update 5 that has been released recently.
If you are interested in buying the CRJ550/700, you can do so on the Aerosoft website or Microsoft Flight Simulator Marketplace.