The Next-Generation File Format (NGFF) specification 0.6 (rc0) has been released, representing the latest development in the standardization of bioimaging data. This update introduces key improvements, particularly in the area of coordinate transformations, which are now integrated into the specification. Please see the original post on this on see the original post on this on image.sc written by Johannes Soltwedel, developer in our RSE unit.

Standardized file formats like NGFF with proper metadata handling are infrastructure investments — they benefit individual researchers, facilities, and the entire field. When your microscopy data is standards-compliant and self-describing, it becomes more valuable, more shareable, and more likely to be reused and understood years after it’s generated.

Key Changes and Improvements

The NGFF 0.6 (rc0) release follows an extensive review and testing phase by the community. Over the past two months, feedback from developers, researchers, and core facilities has been incorporated to refine the specification. The most significant addition is the standardization of coordinate transformations, which allows spatial relationships to be described directly within the image data. This provides a consistent framework for expressing transformations, either at the level of individual images or within a new concept called scenes.

The specification now includes detailed examples and documentation to support implementation. A version history of the changes, including those between the previous development releases (0.6.dev3 and 0.6.dev4), is available on the NGFF specifications page.

Community Involvement and Next Steps

The release of NGFF 0.6 (rc0) marks the transition from development to a release candidate phase. During this period, implementers are encouraged to update their tools and workflows to support the new specification. Feedback from the community remains essential to ensure the final release meets the needs of all users. Developers and core facilities are invited to contribute their updates or provide feedback on the current state of their implementations.

The final release of NGFF 0.6 will provide a stable foundation for future developments, including the planned OME-Zarr 1.0, which will incorporate additional features such as collections.

Further Information

For details on the NGFF 0.6 (rc0) specification, including documentation and examples, visit the NGFF specifications page. Questions or feedback can be directed to the community through the established channels.

This release reflects the ongoing collaboration within the bioimaging community to improve data interoperability and standardization. Further updates will be provided as the specification moves toward its final version.

Thanks to everyone who helped along the way