This is the replacement Toy v2.1 release requested by the dataset owner. It supersedes the initial v2.1 extension at commit 2023f1d2254394f469877a4e2af3e6b78fa415a3. The unpublished development name was v2.2; there is no separate active v2.2 release. Pin the new commit SHA for reproducibility, because the v2.1 tag selects this replacement. Preregistered opaque v22 family/point IDs retain their identity and are not version selectors. Toy v2.1 preserves the 9,600-family, 207,000-clip v2.0 core and replaces the former small diagnostic extension with 2,304 independent new families. It provides 237,150 reference clips over 11,904 physical families, plus separately counted evaluator futures. All…