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- February 2015: SIS 0.5 release with upgrade to ISO 19115:2014 metadata and most basic referencing services.
- September 2015: SIS 0.6 release with WKT and GML support for referencing objects.
- April May 2016: SIS 0.7 release with completion of referencing services.
- 2017: SIS 0.8 release with support (at least for metadata) for some image formats.