February 2026 — Cornerstone3D annotation UX and text box placement enhancements focused on reliability, usability, and maintainability. Implemented new interaction bindings, enhanced text box placement logic across tools, and added robust tests to guard against regressions. These changes reduce annotation time, improve accuracy, and support consistent rendering across across devices.

January 2026 performance summary for cornerstone3D and OHIF/Viewers. Focused on delivering features that improve multi-view visualization, 4D cardiac data handling, and robustness of dynamic volumes. Key outcomes include multi-viewport region segmentation enhancements, improved 4D cardiac data handling with utilities refactor, and stability improvements in NM module dynamic volumes. Collectively, these changes advance clinical workflows by enabling faster, more reliable imaging comparisons across multiple viewports and datasets.

December 2025 monthly summary focusing on business value and technical achievements across cornerstone3D and OHIF/Viewers. Delivered notable features and fixes including advanced magnify tool improvements with world-coordinate handles, multiframe 4D image splitting support, dynamic volume handling refinements, and preclinical cine playback stability. These efforts enhanced imaging accuracy, reliability, and maintainability, enabling faster clinical workflows and more robust data handling.

Monthly summary for 2025-11 across cornerstonejs/cornerstone3D and OHIF/Viewers focusing on delivered features, minor maintenance, and impact. This period delivered stability-focused improvements and enhanced onboarding through targeted documentation updates.

October 2025 focused on stability and predictable UX across cornerstone3D and OHIF/Viewers. The month delivered critical reliability improvements through targeted bug fixes, enhanced test coverage, and refined UI behavior for multi-study navigation and segmentation workflows. These changes reduce crash risk, prevent UI duplicates, and provide a smoother clinical workflow experience.

2025-08 monthly summary for cornerstone3D and OHIF/Viewers. Focused on improving build reliability, enabling smooth migrations, and enhancing user-facing features. Delivered tooling/CI/CD modernization across Cornerstone3D, introduced interactive color tools in the web loader, prepared Cornerstone3D 4.0 with migration guidance and Node.js 20 compatibility, and advanced OHIF v3.11 readiness including CI/CD optimizations, core library upgrades, and documentation improvements. Also added ultrasound annotation enhancements (pleura percentage) to the OHIF USAnnotationPanel UI, improving precision for ultrasound workflows across L/V/POC use-cases.

July 2025 monthly summary for cornerstone3D focusing on startup reliability and segmentation state management. Delivered a targeted bug fix to ensure a valid active segment is selected during initialization, preventing undefined state and improving first-use interaction. The change aligns with our practice of making startup paths robust and minimizing user friction in segmentation workflows. Linked to commit c7ece43c3d26585c7e5c35b8986c65f6576cba51 ("fix first segment active (#2231)").

June 2025 focused on two high-impact features for OHIF/Viewers plus stabilizing the build and test pipelines to support faster delivery and smoother migrations. Key efforts delivered improved migration clarity for OHIF Platform v3.10, enhanced test reliability, and robust ultrasound annotation feature builds across environments. A critical build pipeline fix further reduced integration friction, enabling quicker validation of PRs.

May 2025 monthly summary for cornerstone3D and OHIF/Viewers focused on delivering AI-enabled documentation tooling, enhancing interactive rendering, and stabilizing UI/CI processes to drive developer velocity and product reliability.

April 2025 performance highlights across cornerstone3D and OHIF/Viewers. Delivered substantial feature enhancements in segmentation workflows and rendering, stabilized tests and artifacts, and strengthened CI/CD. Improvements drove faster, more reliable segmentation and rendering, with AI-assisted capabilities expanding the product’s value proposition, while sustaining high test reliability and developer velocity.

March 2025 performance highlights for cornerstonejs/cornerstone3D and OHIF/Viewers. Delivered major segmentation tooling enhancements across cornerstone3D with reliability and performance gains, expanded editor-like capabilities, and improved rendering quality. Implemented acquisition-plane viewport positioning logic, enhanced annotation/labelmap reliability, and completed maintenance upgrades to core libraries. In OHIF/Viewers, introduced a UI overhaul for toolbars/toolbox, expanded segmentation features with preview/selection, and hardened metadata handling and WADO loading. Achieved stronger cross-viewport coordination for measurements and jump-to-measurement workflows, while upgrading dependencies and instituting automated dependency updates.

February 2025 monthly summary: Delivered core data handling, rendering robustness, and feature maturation across Cornerstone3D and OHIF/Viewers. Focused on scalable data workflows, stable ITK integration, and user-facing visualization capabilities to strengthen clinical reliability and developer productivity.

January 2025 monthly summary for CornerstoneJS and OHIF Viewer teams focused on delivering high-value image viewing workflows, improving data handling for 4D volumes, and strengthening build/deploy reliability across platforms. The month balanced feature delivery with robust bug fixes to enhance reliability and performance in clinical workloads.

Month: 2024-12. Focused on delivering user-facing segmentation and rendering enhancements, stabilizing rendering and data management, expanding tooling with WebAssembly support, and modernizing CI/CD and runtime environments. Across cornerstone3D and OHIF/Viewers, shipped features that improve rendering quality, reliability for dynamic data, and navigation against large datasets, enabling faster time-to-value for clinicians and developers while strengthening platform stability for production deployments.

November 2024: Achieved major segmentation and interoperability improvements with Cornerstone3D and OHIF/Viewers, accelerated CI/build reliability with Bun, improved rendering stability and DICOM data handling, and delivered performance gains through a tooling migrations and UX enhancements. This period delivered measurable business value through faster pipelines, more capable image segmentation workflows, and a more robust, user-friendly viewer experience.