* Support for PubSubHubbub for instant notifications from compatible Web sites. [#312](https://github.com/FreshRSS/FreshRSS/issues/312)
* cURL options to use a proxy for retrieving feeds. [#897](https://github.com/FreshRSS/FreshRSS/issues/897) [#675](https://github.com/FreshRSS/FreshRSS/issues/675)
* Security
* cURL options to verify or not SSL/TLS certificates (now enabled by default). [#897](https://github.com/FreshRSS/FreshRSS/issues/897) [#502](https://github.com/FreshRSS/FreshRSS/issues/502)
* Support for SSL connection to MySQL. [#868](https://github.com/FreshRSS/FreshRSS/issues/868)
* Workaround for browsers that have disabled support for `<form autocomplete="off">`. [#880](https://github.com/FreshRSS/FreshRSS/issues/880)