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Even after SIS 2.0 is released, we plan to continue to maintain the SIS 1.x line for a few years. It would give some time to users for migrating from GeoAPI 3.x to GeoAPI 4.x at their convenience. Actually we are already doing that process for many years. The SIS "geoapi-4.0" branch is doing development on top of GeoAPI 4.0 development branch, then the work is ported to master (which depends on GeoAPI 3.0.1) from times to times. Currently only the SIS versions on top of GeoAPI 3.0.1 make the official SIS releases.

Roadmap

Apache SIS 1.1 2 has been released in November 2021May 2022. Next version will be 1.23. Work planed for 1.2 3 release includes:

• Update to version 10 of EPSG geodetic dataset.
• Dynamic datum in Coordinate Reference Systems.

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