Back on December 28, 2013, I released SPServices 2013.02, just squeaking in under the wire to be able to name it thusly.
For the record, the issues were:
- In SharePoint 2010, the current site context was not calculated correctly
- GetListItemChanges and GetListItemChangesWithToken failed as they had in previous versions
- In SPDisplayRelatedInfo, if the relatedListColumn was not specified in relatedColumns, the function would fail with an error. This issue was probably present in previous versions, but as far as I know had not been reported.
Sorry for the inconvenience, and thanks to Paul (yet again!) for his help and support.