
The latest security maintenance release features fixes for 67 Common Vulnerabilities and Exposures (CVE) in the underlying Android operating system as well as 28 patches that are exclusive to Samsung's software.
Given that Samsung has started rolling out this patch for the Galaxy S6, it's only a matter of time before the Galaxy S6 edge gets it as well. Bear in mind that this has only been rolled out for the unlocked variants so if you own one that's locked to a carrier, you may have to wait a bit longer for this security patch to arrive. This same patch was already released for the Galaxy S6 edge+ last week.
Update: Samsung has started rolling out this update for the Galaxy S6 edge as well.