If you use the Amazon Product In A Post Plugin on WordPress you might have either not upgraded yet or decided to not upgrade because the shortcode syntax has changed. You can get around not upgrading by updating the WordPress post content immediately after you upgrade the Amazon Product In A Post Plugin. Below I describe the version that I upgraded and the MySQL syntax used to update the shortcode syntax to display Amazon products in WP posts.
When upgrading packages on Ubuntu using the apt-get upgrade command you may notice that some packages are not upgraded. Ubuntu will not upgrade packages that could have a major impact to service on the server such as the kernel, kernel headers, MySQL packages, and various others. The packages are held back by aptitude as a safeguard to keep people from upgrading packages that might keep the server from rebooting or that might corrupt something like a database. Below we show the error in more detail and explain the command that can be run to upgrade the packages that are being held back.