VikAppointments 1.7.10 release

Improvements

Added support to the new Joomla! "Proof of Work" CAPTCHA.
The custom fields now block the booking process if the provided email address or phone number is invalid.
Improved the layout of the invoices archive back-end page.

Fixed a PHP warning that could cause availability overbookings under rare setup conditions.
Fixed an issue that was preventing the selection of the correct access level for options, packages and payments.
Fixed SQL-injection vulnerability on front-end rating filters.
Tel and mailto input attributes have been escaped to prevent XSS attacks.
Fixed an issue that displayed an untranslated string when attempting to complete a package purchase without filling in all the mandatory custom fields.
Fixed minor PHP warnings.