Feature release: inline attachments
This release adds support for inline (image) attachments.
One minor BC break: Message::getDate()
now returns DateTimeInterface
- please see UPGRADING.md
.
Also, unit tests, code coverage report, and integration tests against an SMTP server are now being run automatically under PHP 5.6, 7.0 and 7.1.
Support for HHVM has been removed from composer.json
and from automated tests, due to the fact that HHVM does not yet support a required stream filter. (it looks like the HHVM team is working on this, so support will be restored once the stream filter becomes available.)