windows mail compatible with windows 10?

My OS WINDOWS 8.1, ISP - ATT.Yahoo - e mail program, windows mail. Will windows 10 accept windows mail automatically, or will there be additional steps and/or uploads as windows 10 is installed.

Maybe a few more details as to my set up will bring additional replies.
My original computer had Vista OS and e mail program was "Windows Mail". ISP was Att.Yahoo. When my mentor helped set up present laptop (Came with Windows 8.1), she took the easier route by not changing my e mail program to Outlook or Windows Live Mail.Now, I send and receive e mail thru ATT.Yahoo to Windows Mail.
Now, before I go to Windows 10, I would like some advice and comments - i.e.- Will my Windows Mail smoothly transfer to
Windows Essentials as I install Windows 10. And if not, can suggested routes and steps be given to assist me in the transfer?
I prefer not to change to Windows LIve Mail, Yahoo or Outlook. Thanks for any help.

The Windows 10 Mail App now supports POP3

Although it is still a web-based email program (no email save to local drive)

Windows Live mail is a Local email program ( email storage on local drive)

will windows live mail support imap?

windows live mail does..

Windows Essentials - Download Windows Live Essentials