…and disallow <StageGain> and <Decimation> for <Polynomial> response stages Add “measurementMethod” attribute to “uncertaintyDouble” attribute group used by azimuth, dip, distance, latitude, longitude, elevation, etc. types Add <WaterLevel> within <Station> and <Channel> Add “subj…

… PR #3250 : Added DefinedTerm as an expected value for measurementTechnique and measurementMethod 18.0 2023-05-18 Version 18.0 - Improving our ability to talk about text objects and thumbnail images for creative works. PR #3091 : Added an explicit subtype of MediaObject for text:…