What is the difference between SSV and SSV Redline?

As a cryptocurrency and finance professional, I'm curious to understand the distinction between SSV and SSV Redline. Could you elaborate on the key differences between these two? Are they variations of the same underlying protocol or do they serve distinct purposes? I'm particularly interested in understanding their use cases, technical differences, and if there's a preferred choice for specific applications within the crypto ecosystem. Additionally, I'd like to know if there's a significant difference in market adoption or community support for either SSV or SSV Redline.