Yes, this is correct even if the client on Windows has already version 1.62.103718.
This is the last Arma2OA version for 1.62 for the linux server. The next version is already 1.63 which should also run but all clients need to install a beta patch which fits to the 1.63 version then…and most clients did not update so far to still be able to play on a lot of servers.
Have a look at the beta patch page:
Arma2 Beta Patches/a>
…and the Arma Dedicated server versions available:
Arma Dedicated Server
← 6.) Server shows version 1.62.102451, is this correct