Links to each UAD release forum archive:

UAD v9.0 Q&A - UA API 2500, Chandler Zener, ADA STD-1, Townsend Labs Sphere

UAD v8.7 Q&A - UA Manley Voxbox, UA Classic FX Bundle, Ampeg B-15N

UAD v8.6 Q&A - UA Fender Tweed '55, Chandler Curvebender, Oxford Limiter V2

UAD v8.5 Q&A - Marshall JMP, Brainworx bx_digital V3, Sonnox Envolution

UAD v8.4 Q&A - Eventide H910 Harmonizer, Oxide, Marshall Silver Jubilee, Bluesbreaker

UAD v8.3 Q&A - AKG BX 20, Ampeg SVT's, Tube-Tech EQ

UAD v8.1 Q&A - Neve 88RS+, Marshall Plexi, TubeTech CL 1B