The Discourse software that runs this site has been updated to the most recent 2.8.0.beta7 release, containing a security fix and thousands of zowie new features. Here are the 2.8.0beta7 release notes. In addition, the Spoiler Alert plug-in was updated to the current version.
Unlike WordPress, where a software update is a time-consuming and risk-prone undertaking, with Discourse one click in the Administration dashboard is all it takes.