Minimum PHP version supported is now 8.0. The minimum PHP version has been raised to PHP 8.0. Please keep in mind that PHP 8.0 is End of Life since November 26th, 2023. The previously but no longer supported PHP version 7.4 has been End of Life since November 28th, 2022. We recommend that our users always use a PHP version officially supported by the PHP project for security and stability reasons, even if their host / Linux distributions backports (some) security fixes.
Support for receiving email with non-UTF-8 encoding. If you are using an ancient version of Microsoft Outlook in a non-English locale, you might find that it sends email in a legacy encoding such as Windows-1253, or ISO-8859-7. This is now supported, with legacy encodings being automatically transcoded to UTF-8. We'd also like to point out that every other major email application and email provider has been defaulting to UTF-8 email since approximately 20 years ago.
Updated Horde IMAP library to better support newer PHP versions. We have updated to the latest version of the Horde IMAP library to better support newer PHP versions (8.3 and 8.4). The new Horde IMAP library is backwards compatible with older PHP versions back to 8.0, hence the need to bump the minimum PHP version compatibility of ATS.
Bug fixes and minor improvements.