*[Hystrix: Latency and Fault Tolerance for Distributed Systems](https://github.com/Netflix/Hystrix) 1.4.20 -> 1.5.12
¹Required dependencies for these components must be first manually downloaded before being built, due to license incompatibilities. For this reason these components are not by default included in the SkyWalking releases.
¹Required dependencies for these components must be first manually downloaded before being built, due to license incompatibilities. For this reason these components are not by default included in the SkyWalking releases.