Recent Dovecot on old operating system

[geho781 at justmail.de]

Hi,

sorry for the dumb question and please ignore this post if you think it's far beyond; i know it's not the way to go, but for reasons ...

Has anyone running a self compiled recent dovecot (2.2.36.4) on Debian-7 and does it work?
 Or thinks it should work.

Surprisingly it actually compiles flawlessly on Debian-7, but i wonder wether it will become a complete mess replacingthe existing dovecot (2.1.7) with the new one, serving a few dozens users and any kind of mail clients.

Libraries of the compiled Dovecot:
$ ldd ./src/master/.libs/dovecot        linux-vdso.so.1 =>  (0x00007ffeacfb1000)
        libdovecot.so.0 => /usr/local/00-DBAI/dovecot/lib/dovecot/libdovecot.so.0 (0x00007f557b2a9000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f557af1c000)
        libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f557ad18000)
        librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f557ab10000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f557b5dc000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f557a8f4000)

libc6 versions:    Debian-7: 2.13-38    Debian-9: 2.24-11

thanks so far, gerald