ohif-viewer/platform/docs/docs/migration-guide/3p8-to-3p9/1-segmentation/index.md

id	title	sidebar_position	summary
segmentation-index	Segmentation	1	Migration guide for segmentation architecture changes in OHIF 3.9, covering the shift from tool group-centric to viewport-centric architecture to support advanced visualization capabilities and more flexible segmentation handling.

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:::info This migration involves significant architectural changes to the segmentation system. While we typically aim for incremental updates, the shift from a tool group-centric to a viewport-centric architecture was necessary to support OHIF 3.9's advanced visualization capabilities, and more flexible segmentation handling.

Don't worry - we'll guide you through each change step by step! :::