This report summarizes the local deltas in two PS2 library forks and explains the technical reason each change exists. The intended audience is maintainers of the PS2 SDK ecosystem, especially ps2gl and ps2stuff.
The downstream project using these forks is HyperSolar, but the library changes below are described in library terms. Game-specific details are included only where they explain an observed requirement or a compatibility constraint.
Two nested forks were reviewed: