It's a binary build that includes lots of fixes/improvements: Per-GPU hashrate reporting, timing of DAG generation, and mutex-free stratum code (no more deadlocks). The build is almost completely static, so the only shared lib dependencies are a few standard ones like libc and ld-linux. Grab ethminer-1.1.9nr-OCL.tgz from here: http://github.com/nerdralph/ethminer-nr/tree/110/releases
As before, you can also build from source.
I should have a full mining on Ubuntu/AMD guide finished in the next few days.
p.s. in order to get a static build that doesn't depend on libcurl.so and the tls or openssl libraries, there is no support for getwork in the build (stratum only).
Edit: screenshot link added
