I have a Drupal 6.16 site which I want update the core and contrib modules to the latest available version for D6 (Drupal 6.38). I want do the update process using Drush, and NOT manually.
Once I do this, I plan on upgrade D6 to D7. In the future, I will upgrade from D6 to D7.
I am trying to update using Drush 8.0.5, however I am unable to. When I use the command "drush pm-update", I see a list of all the modules, but it says "Installed version not supported". See example below.