The changes in the SLDR include updated autonyms, collation fixes, and these new files:
abq.xml
apd.xml
bej.xml
bjt.xml
bsq.xml
fue_Arab.xml
xes.xml
zlm.xml
Additionally, some files have been renamed to reflect the updated minimal tags as seen in the staging version of Langtags, which is also frozen for review.
If something does not work as expected, please let us know using the community site at https://community.software.sil.org/c/writing-systems/ or the sldr_updates channel on the SIL Language Technology Slack.
If everything is satisfactory, we would aim to release the updated langtags and SLDR either late in the first week of February or early the week after.