Not found docker image version 5.6.30 about mysql HOT 4 CLOSED

The tag exists but it's an image format that is deprecated and disabled by default in version 26. You can either use version 25 of the Docker or configure an override (which will stop working on version 27)

https://docs.docker.com/engine/deprecated/#pushing-and-pulling-with-image-manifest-v2-schema-1

from mysql.

That tag is 8 years old. Is there a reason to be using such an old version?

from mysql.

Upgrade is not available on our system, so we need to use this version.
It is difficult to update immediately because verification etc. are required, so this version that is currently running is required.

from mysql.

Thank you for your support.
I overlooked that error.

from mysql.