.. _changes: ======================== Changes ======================== Changes to this specification are listed below. Version 3.0-d2 (April 2026) ------------------------------- * Add new :ref:`reference data examples `: * Header-only record with FDSN and non-FDSN headers * | Record with large field Source ID incompatible with SEED: | **"FDSN:NETWORK_STATION_LOCATION_G_XX_"** (not real, for illustration only) Version 3.0-d1 (February 2026) ------------------------------- * Publish the FDSN reserved extra headers schema definition in `JSON Schema specification 2020-12 `_ (latest as of this publication). The previous schema was "2023-07", but was never officially released and is no longer available. There is no functional change to the FDSN reserved headers, only a change in the schema reference. Version 3.0-d0 (April 2023) ---------------------------- * Specification revision 2023-01-18 adopted by FDSN. * Reference data were refined following the specification revision. 2021 -------------- * Initial specification of miniSEED 3