This is a minor update but it fixes a potential security issue.
There was a security flaw discovered on one of the 3rd party libraries AVCMS makes use of. The library, called SwiftMailer handles email sending. You can find out about the flaw here: https://legalhackers.com/advisories/...0074-Vuln.html
To fix this you can upgrade to version X.0.10 using the normal upgrade instructions or instead simply upload the vendor/swiftmailer folder from the zip.
You can grab the update from the customer area or your admin panel.
Best wishes,
Andy