Minecraft 1.7.9 released today called the Minecraft update newest version. The Minecraft 1.7.9 update is again just like the Minecraft 1.7.7 & Minecraft 1.7.8 updates which were basically put out for security issues and just so Mojang could keep pushing out updates!
Because this is important, let me repeat that last sentence:
Please make sure that you are in the correct server mode (online mode/offline mode) when you start the 1.7.9 server for the first time, because profiles are not compatible between these two server modes.
Minecraft 1.7.9 Official Download Links:
Cross-platform server jar: https://s3.amazonaws.com/Minecraft.Download/versions/1.7.9/minecraft_server.1.7.9.jar
Cross-platform server windows exe: https://s3.amazonaws.com/Minecraft.Download/versions/1.7.9/minecraft_server.1.7.9.exe