Release Notes – VivoQuant 6.4

Release	VivoQuant 6.4 (Jira)
Release date	Unreleased (target 2026-10-05)
Version	6.4
Contributors	James Pieszala, Justin Loutsch, Julian Guarin

VivoQuant 6.4 builds on the ROI work from 6.3. ROIs now have persistent, global visibility and management, and more operators support it. This release also makes floating and Keygen licensing more resilient, cleans up the DICOM Dump and Editor workflows, adds save-format choices for preprocessing and splitting, and fixes many stability, session-file and UI bugs.

Done

Features

Bug Fixes

Tech Changes

Contributors

🚀 Major Features & Improvements

ROI Management & Global Visibility

ROIs now have persistent, global visibility and management across VivoQuant
More operators now use the global ROI visibility controls
New "Extract Split Shape to ROI" option turns splitting shapes into ROIs
3D ROI brushes can now be a fixed size in real-world units (mm), with a px/vox/mm toggle
You can choose whether ROIs are visible when saving image data as an image (JPG, PNG, etc.)
Datapoint ROI naming no longer works per layer; it is back to the earlier behavior

Licensing

When the floating license heartbeat fails, you now get a chance to reconnect instead of the app force-closing
Floating licenses now reactivate automatically
Keygen licenses now get a proper upgrade notice
A Python Integration entitlement has been added to Keygen
A licenseless VivoQuant Docker image is now available

DICOM Dump & Editor

The DICOM Dump menu options have been redesigned so the Editor is the first choice
DICOM Dump from the main menu now shows SharedFunctionalGroupsSequence
The legacy DICOM Dump was removed from the Data Manager after an audit against the new Dump Editor
The Data Browser's Progress Manager no longer stays "busy" after a DICOM dump

Data Browser, Preprocessing & Splitting

Data Browser projects are now saved between sessions
Preprocessing and splitting now have a proper UI option for choosing save formats
The splitting operator now lets you choose how to save split data when you run it
The Study Browser button is now enabled whenever it should be

Viewing & Usability

You can now easily view each plane on its own
New in-app path to Invicro's service contact
The toolbar chevron is now visible in system Dark Mode
The MIP palette now updates automatically for Input 1 and Input 2

Scripting & Documentation

VivoScript is easier to read
The getWidget Validator script now includes Combo Box items
MultiWidgetGridLayout is now parented correctly for getWidget
The user manual's wording on palette focus and its search function have been fixed

🐞 Bug Fixes

The 3D ROI Tool no longer adds ROI names to the dropdown once the maximum number of ROIs is reached
Arrow keys now change the slice in the correct Slice View
Floating license IDs are now validated before the software is activated with them
Using a corner label template name that doesn't exist in VQS now shows an error
The SliceThickness value now updates in DICOM Dump after it's edited in the DICOM Editor
Adding a license to the blacklist no longer overwrites and then deletes the VQ license file
VivoQuant no longer freezes when the keepalive to the floating license server times out
The DICOM Editor now goes through every value of multi-valued elements
The DICOM Editor now parses AT value representations correctly
On macOS, VivoQuant no longer stays in the Dock after you quit
VivoQuant no longer leaves stray files in the application temp directory
Opening a session file no longer leaves the logo covering the menus
Session files are no longer created with the animal badly stretched
The ROI operator's bounding cylinder algorithm has been fixed
VQ 6.3b31 no longer crashes when loading a saved session file
Fixed a crash when using MIP with the ROI operator
The Arithmetic operator has been fixed
Min/max calculation now works for images where every voxel has the same value

🛠️ Technical Changes

QSliceViewControl comments now use enums
Added high-level GNE script guidance
Investigated and fixed the MIP + ROI operator crash
Added the 6.4 Test Plan and Test Execution for regression testing (still in progress)

📦 All Completed Work Items

Work Item	Type	Summary
VQ-982	Bug	3D ROI Tool: Do not add ROI name to the dropdown if the number of ROIs is already at the max
VQ-2851	Bug	Slice View: Arrow keys do not change slice in correct view
VQ-3376	Bug	Validate floating license ID before activating software with it
VQ-3480	Bug	Using a non-existing corner label template name via VQS does not show any errors
VQ-4067	Bug	SliceThickness value not updated in DICOM dump after editing in the DICOM editor
VQ-4242	Bug	VQ license file is overwritten and then immediately deleted after adding to the blacklist
VQ-4751	Bug	VivoQuant freezes after keepalive times out to floating license server
VQ-4828	Bug	Need to iterate over all values of multi-valued elements in DicomEditor
VQ-4830	Bug	DicomEditor is not parsing AT value representations correctly
VQ-5097	Bug	VivoQuant application still hangs around in the dockbar in macOS after quitting the application
VQ-5105	Bug	Stop littering the application temp directory
VQ-5292	Bug	VQ 6.0.1 bug - build 190 - session file opens with logo obscuring menus
VQ-5293	Bug	VQ 6.0.1 bug - build 190 - session file created incorrectly, animal very stretched
VQ-5426	Bug	Fix up ROI Op Bounding Cylinder Algo
VQ-5432	Bug	Plumb Dicom Dump From Main Menu to Show SharedFunctionalGroupsSequence
VQ-5433	Bug	Redesign Dicom Dump menu options so users first choice is the Editor
VQ-1564	Story	Data Browser: Progress Manager should not be left in "busy" state after dicom dump
VQ-3626	Story	Licenseless VQ Docker Image
VQ-3787	Story	Ability to easily view all planes in isolation
VQ-4500	Story	Allow users to toggle visibility of ROIs when saving image data as image (jpg, png etc)
VQ-4824	Story	Add Proper UI option for save formats for preprocessing and splitting
VQ-4897	Story	Elevate ROI in VQ for Persistent, Global Visibility and Management
VQ-4934	Story	Use enums on QSliceViewControl comments
VQ-4966	Story	Splitting operator - allow runtime choice of how to save split data
VQ-5405	Story	3D ROI: fixed-size brushes in real dimensions (mm) with px/vox/mm toggle
VQ-5420	Story	VQ 6.3b31 crashes when loading saved session file
VQ-5424	Story	Help User Get to Our Service Contact
VQ-5427	Story	Extract Split Shape to ROI
VQ-5430	Story	Bring more operators to use the global ROI visibility
VQ-5431	Story	Floating license heartbeat failures force-close the app without giving the user a chance to reconnect
VQ-5434	Story	Allow keygen license to get a proper upgrade notice
VQ-5436	Story	Add Python Integration Entitlement to Keygen
VQ-5437	Story	Audit Legacy DICOM Dump vs New Dump Editor
VQ-5439	Story	Data Browser Project Persistence
VQ-5440	Story	MIP Palette not auto updating for Input 1 or 2
VQ-5442	Story	Manual - fix palette focus verbiage and search functionality
VQ-5443	Story	Floating license - auto reactivate
VQ-5444	Story	Remove Legacy Dicom Dump from Data Manager
VQ-5445	Story	Switch datapoint roi name back from per layer
VQ-5446	Story	System Dark Mode Toolbar Chevron Non-Visible
VQ-5447	Story	Add Combo Box items to getWidget Validator script
VQ-5449	Story	Fix up arithmetics op
VQ-5450	Story	MultiWidgetGridLayout not parenting for getWidget
VQ-5452	Story	VQ not handling uniform voxel value min max calc
VQ-5456	Story	Study Browser button not always enabled when expected
VQ-4607	Task	Improve VivoScript User Readability
VQ-5165	Task	Provide High-level GNE Script Guidance
VQ-5423	Task	VQ crash with MIP + ROI operator (on Jacks computer)