Sodium, Sodium Extra, Reese's Sodium Options, Nvidium and Voxy are pinned to a matching Sodium 0.9.2 set, and Better Block Entities to 1.4.0. Newer Sodium betas break Nvidium and the other addons.
Optimized Block Entities was left out because Better Block Entities already covers it.
FastQuit and Particle Core ship 26.2 builds that also declare support for 26.3 (no separate 26.3 build exists).