Error while running update for Ubuntu16.04

I am getting this error:

Code:

The openssl enc command changed the default digest (used to create the key
  from passphrase) from MD5 to SHA256 since the version 1.1.0. The digest can
  be specified with the -md option.

 -- Sebastian Andrzej Siewior <[email protected]>  Tue, 27 Dec 2016 23:37:36 +0100

How I can resolve this?

 

That is not an error.

 

while running the update, the update stopped at that point, I hit - q to move further.
is that okay?