XNAT 1.10.1 is a maintenance and hardening release, focused on DICOM import and anonymization correctness, DICOM networking, stability under large-scale ingest and download, and security hardening.
Key updates in this release:
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Site-wide anonymization scripts now propagate to configuration on a single synchronous write, with configuration versions assigned atomically, removing a class of collisions under concurrent writers.
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Sessions of rarer modalities can now be imported and sending DICOM to a remote AE no longer fails to open an association.
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Fixes for concurrent catalog writes on very large uploads, slow Download Images pages, periodic JVM pauses from event service synchronization, and an unbounded Activity Tab cookie.
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The Series Import Filter and PET/MR session separation are now fully removed; sites that had separation enabled are migrated automatically on startup.
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DicomEdit 6.9.1 is bundled, correcting retention of private DICOM elements in high private groups.
Other updates
Also released - The DICOM Query Retrieve (DQR 3.10) plugin rebuilds Send to PACS functionality on the modern dcm4che API: one association per send, each object streamed in its stored transfer syntax rather than transcoded, and each returned PACS status inspected. It also fails a PACS request when a C-MOVE reports success but delivers no files.
Upgrading from XNAT 1.10.0 requires no change to your Java, Apache Tomcat, or PostgreSQL versions. Full details are in the XNAT 1.10.1 Release Notes and the DQR 3.1.0 Release Notes.