XNAT 1.8.1 is a maintenance and bugfix release geared at addressing a few high-priority issues lingering from the 1.8.0 & 1.8.0.1 releases. While all upgrades should be tested against your existing customizations, this release does not introduce major plugin compatibility issues.
Bare-bones datatypes for General Microscopy (GM) and Slide Microscopy (SM) image sessions have existed in the XNAT data model, but were rarely if ever used. Beginning in XNAT 1.8.1, there is now basic support for importing and archiving DICOM sessions of these types. Future work to flesh out the datatypes and pull relevant attributes from the DICOM will be forthcoming.
By default, XNAT versions 1.8.0 and earlier would maintain a cached backup of deleted files. Starting in XNAT 1.8.1, the default behavior changes to not maintaining these cached backups.
This behavior can be set in Admin UI - File System SettingsIn the relatively rare cases of importing DICOM with repeated series numbers, missing series numbers, mixed-SOP-class-series, the XNAT archive could end up with multiple resource catalogs in a single scan resource folder. This has been remedied.