chip0502 wrote:
I am migrating from Mac 10.15.5 Catalina to 10.15.6 Catalina. How do I move my softwares like MS Office, etc. Do I need to buy new one for my new Mac. This MS office I just bought the latest Office package just 3 months back. Do I have to pay that amount again?
Catalina macOS 10.15.7 is available and would be considered the stable and last release.
Combo update macOS 10.15.7 https://support.apple.com/kb/DL2052?locale=en_US
migrating/upgrading to a new machine typically nothing changes with your software.
The most trouble free way to move to a new machine, is using the Setup Assistant on the initial boot— you have one shot here. https://support.apple.com/en-us/HT205749
If that opportunity has past, the second best way is use the Migration Assistant.
How to move your content to a new Mac https://support.apple.com/en-us/HT204350