Update errata/21.html for previous publications#4424

Merged

kfranqueiro merged 2 commits intomainfrom

kgf-21-errata-since-dec2024

Jun 10, 2025

Commits on Jun 3, 2025

Add 2.1 changes since December 2024 that were not previously listed

mbgower
authored and
kfranqueiro
committed
Reorganize previous 2.1 errata by commit date
kfranqueiro
committed