Get Previous version of Microsoft Teams client (Desktop APP) and its release notes

HI Padmanaban_Jayaraman 

I needed to download the desktop App this today, I used the link https://www.microsoft.com/en-gb/microsoft-teams/download-app and scrolled to the bottom of this page , clicked on expand all , this revealed link to download the Classic Teams App .

I hope this helps.

Regards 

Paul