Security update for patched module Is it necessary to re-patch an existing patched module when doing a security update for that module?  I am not interested in keeping it patched. Or will this potentially break something?
Most likely you will need to repatch the module, if you doing it manually.

If are using composer to manage your drupal set up, you can use "cweagans/composer-patches", and this composer plugin it will reapply the patch for you automatically and let you know if the patch will no longer work on the newer version of the module.

This is a big time saver.