- SECURITY Fix potential object injection vulnerability. CVE-2018-19296. Reported by Sehun Oh of cyberone.kr.
- Added Tagalog translation, thanks to @StoneArtz
- Added Malagache translation, thanks to @Hackinet
- Updated Serbian translation, fixed incorrect language code, thanks to @mmilanovic4
- Updated Arabic translations (@MicroDroid)
- Updated Hungarian translations
- Updated Dutch translations
- Updated Slovenian translation (@filips123)
- Updated Slovak translation (@pcmanik)
- Updated Italian translation (@sabas)
- Updated Norwegian translation (@aleskr)
- Updated Indonesian translation (@mylastof)
- Add constants for common values, such as
text/htmlandquoted-printable, and use them - Added support for copied headers in DKIM, helping with debugging, and an option to add extra headers to the DKIM signature. See DKIM_sign example for how to use them. Thanks to @gwi-mmuths.
- Add Campaign Monitor transaction ID pattern matcher
- Remove deprecated constant and ini values causing warnings in PHP 7.3, added PHP 7.3 build to Travis config.
- Expanded test coverage