PathcoreFlow™ Release Notes

v4.2 (2025-11-03)

The latest version of PathcoreFlow, v4.2, introduces the much desired Trash Can for user-managed file & storage recovery, the Universal LIS Connector for rapid integration with third-party study management systems, and a validated integration with Instem's Provantis preclinical study management platform.

New Features

Trash

The Trash collects items that have been removed from the Repository and marked for deletion, but which have not yet been permanently erased. It provides a space for users to review and restore recently deleted items, and recover storage associated with unwanted files.

This feature allows for users to restore an item within 30 days of its removal from the Repository. And, with some packages, this retention period can be customized to better suit your workflow.

See Trash in the PathcoreFlow User Manual for more details.

Universal LIS Connector

The Universal LIS Connector (ULC) add-on enables bi-directional data exchange of metadata between PathcoreFlow and external systems, such as laboratory information systems (LIS).

With the Universal LIS Connector, labs can ensure consistent data flow across their organization and scale digital pathology infrastructure without bottlenecks.

Two third-party systems have already been tested and validated — TetraScience's Scientific Data and AI Platform and Instem's Provantis® preclinical study management platform — with more to come in the future.

See Universal LIS Connector in the User Manual for more information.

Improvements

Activity Log Improvements

• Added support for "Move to Trash" and "Restore from Trash" activity log entries
• Updated how the following logs are displayed in the Activities tab in the Repository:
  • "Copy" logs now show the file/folder that the entity was copied from
  • The wording of the "Upload File" and "Add Folder" logs have been changed to be more clear
• Activity log entries are now added for files uploaded via the Pathcore Upload Client
• All descendants of copied items now have the "Copy" activity logged

API Improvements

• New API endpoints have been added to support the Trash:
  • GET /tree_nodes/trash — fetch items that are in the Trash
  • POST /tree_nodes/trash to send items to the Trash
  • POST /tree_nodes/delete to permanently delete specific items from the Trash
  • POST /tree_nodes/delete/all to permanently delete all items from the Trash (empty the Trash)

Fixed in this Release

Repository Fixes

• Fixed a bug where the tooltip for the Location field of Figures and Reports would be incomplete
• Fixed a bug that made columns appear multiple times in the table column picker if a Custom Field had the same name as a System Field

Integration Fixes

• Upgraded the components used to render Visiopharm overlays to correct a set of potential security vulnerabilities

On-Premise Fixes

• Resolved an issue where errors connecting to an externally managed database could lead to seemingly random internal server errors (HTTP 500) and some new images getting stuck in the "Pending..." status.