no update

[newtusmaximus]

Just had this same problem solved by stevef

This indicates that repositories have changed or added information concerning their software.  The changes/additions are to software version information 'tags' so can reasonably be expected to change during the support of software.

The update/upgrade process requires indication from the user that these new labels are OK which is done by running from a terminal

Code:

sudo apt-get --allow-releaseinfo-change update

This allows the update process to continue.  Once updated

Code:

sudo apt-get upgrade

should be run to complete the job