I upgraded Route 66 to .0007 which primarily includes some fixes for error logging issues and incorporates a fix for PayPalIPN.
missing STATIC HTML page error logging: error logs have been filling up fast for some merchants. While the error logging is useful for finding out if a &cartlink= or &page= type link (the 2 types of STATIC HTML pages we use) is broken or missing, there are script kiddies and others trying to see if they can create an injection vulnerability and get to the database. You can tell these types of attacks as thy will add something like 'A=0 on the end of the URL or a million different things like it but it always starts with a quote and then tries to do what we call a variable set. But to your store, this looks like a page request and so it will try to find a page that does not exist. When that error happens, the error is logged. If emails are enabled, you will also get an email with the error details. While they cannot use this method on AgoraCart, the error handling was working but would cause server errors after some changes a while ago. So the handling now shows the 405 error properly. These types of attacks fill up the error logs very quickly so your error logs need to be examined and emptied regularly and that frequency depends upon your traffic volume.
Error Logging Controls: This version brings the ability to enable/disable error logging for the 2 most common error types: missing cart sessions and missing STATIC HTML pages. It also allows you to turn off error emails that contain the error details. IF you turn off a common error type, then the emails for that error is also skipped. You can set these up in your Store Settings > Main/Core Settings > misc tab.
Included: The PayPal IPN fixes for the address validation errors for the 24 country codes required if the customer is not in same country as merchant.