I've had a couple of questions about some new prefixes that are showing up on https://android-build.linaro.org.
Here's the breakdown:
staging-
LT board support patches + jstultz's common Android tree, this is a pretty stable point
landing-
LT board support patches on some version of the kernel
tracking-
LT board support patches + Linus HEAD + the Android tracking branch
<no prefix>
Only jstultz's common Android tree, the so-called upstreamed only support
These builds go into the LEB ranking system. This system gives the build a star value depending on what's working (Ethernet, Audio, etc..). If a build attains a certain star value it is called an LEB.
Feel free to catch me on this thread or on irc or mumble if you've got any comments or questions.