It does not appear that any software is yet listed on the MS site https://www.dor.ms.gov/Business/Pages/Corporate-Income.aspx

To the best of my limited knowledge of MS Corporation filing, MS 83-105 is the primary form and it is shown as 1/29/2021 as EF allowed. If this is not what you intended, I guess I misinterpreted. 

I am truly sorry that you felt you need to feel offended. 💋