What does this text mean in the macOS terminal?

Question

Command line

Can you please tell me what this text means in the macOS terminal and why images are not saved in the gimp application? (This seems to be related)
Last login: Mon Nov 18 06:59:31 on console
The default interactive shell is now zsh.
To update your account to use zsh, please run `chsh -s /bin/zsh`.
For more details, please visit https://support.apple.com/kb/HT208050.
Dmitriys-MacBook:~ dmitriyd$ /Applications/GIMP-2.10.app/Contents/Resources/lib/gimp/2.0/plug-ins/file-jpeg ; exit;
/Applications/GIMP-2.10.app/Contents/Resources/lib/gimp/2.0/plug-ins/file-jpeg is a GIMP plug-in and must be run by GIMP to be used
logout
Saving session...
... copying shared history...
...saving history...truncating history files...
...completed.
Deleting expired sessions...3 completed.

Answer 1

If this warning bothers you:
1) Open ~/.bash_profile
2) Add export BASH_SILENCE_DEPRECATION_WARNING=1
there 3) Save changes
Not related at all. It's just a warning.