The list of the key changes for the January 2015 major release of the OME-XML data model. This schema release will tie in with the Bio-Formats 5.1 release.
The new major release of the schema has a new namespace and all version numbers are reset to 1. As a major release, any file that validated correctly using the last major release will probably not validate correctly using this new release. Some files that failed to validate before will now be valid. It is important to update any file readers and writers to understand the changes.
The version number of all schema files is now 1, except ome.xsd which version number is 2.
This schema uses the new namespace:
For the OME schema
and the schema file is located at
Expanded documentation for AcquisitionDate describing supported precision.
Updated documentation for NDFilter to reflect usage
Added a general Map to ImagingEnvironment to store key-value pairs
Added a new core type NonNegativeFloat
Added a new core element Map and associated complex type MapPairs. This in turn contains a collection of M elements that store a mapped value, each with its associated K key attribute.
Added a new GenericExcitationSource to light source types. This uses a Map of key-value pairs to store metadata for a light source that cannot be expressed as one of the other types.
OMERO.xsd is not included in this release.
ROI: StrokeWidthUnit ROI: FontSizeUnit
WellOriginXUnit WellOriginYUnit PositionXUnit PositionYUnit
The XSLT transforms between June 2013 and January 2015 versions are available here: