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@matthewhanson matthewhanson released this 11 Oct 21:39
· 1677 commits to master since this release
v0.8.0
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v0.8.0 - 2019-10-11

Changed

  • Updated specification to base on WFS3 draft 2 (OGC API - Features - Part 1: Core, v1.0.0-draft.2). This leads to many changes in the API and one change in STAC collections, notably:
    • The structure of the field extent in STAC and WFS Collections changed.
    • Query parameter time was renamed to datetime and accepts slightly different values.
    • WFS links have additional fields hreflang and length.
    • WFS Collections have additional fields crs and itemType.
    • time API parameter changed to datetime
  • The API intersects parameter now accepts a GeoJSON Geometry (any type) instead of a GeoJSON Feature.
  • API: Clarification on include and exclude parameters in the field extension and notes on default values.
  • API: queries should contain either bbox or intersects.
  • API: Core API now has reserved parameters to prevent overlap with extensions
  • Updated bbox definitions in API, Item, and Collection specs to include support for optional elevation values.
  • Moved Single Item Extension to core (license and providers properties for Items).
  • Allow various for the license fields.
  • Clarified meaning of SAR and EO platform, constellation, and instrument
  • Numerous typos, clarification and general word-smithing
  • Changed GeoTIFF media type from image/vnd.stac.geotiff to image/tiff; application=geotiff, changed Cloud-optimized GeoTiff media type from image/vnd.stac.geotiff; cloud-optimized=true to image/tiff; application=geotiff; profile=cloud-optimized.

Added

  • stac_version: Each Item must specify the STAC version.
  • stac_extensions: Introduced this field for Items, Catalogs and Collections.
  • Property summaries have been added to catalogs and collections.
  • API Transaction extension supports optimistic locking through use of the ETag header.
  • Asset Definition Extension added to Collections to allow specifying details about Assets that may appear in member Items.
  • Single File Catalog extension added as a format to have a set of Collections and Items in a single file.
  • Label extension added with additional fields for describing labeled data, such as used for training data or from the output of a classification
  • Timestamp fields added to Item: created and updated to refer to the datetime the metadata file was created or updated.
  • Added Search Metadata API extension which adds fields to a response from a STAC API such as the number of items found and how many were returned.
  • ItemCollection class added to spec that is a GeoJSON FeatureCollection of Items, such as what would be returned from a search. Located in item directory.
  • in operator added to the query extension (to check if value is in a list of values)
  • New bands added to the common band names for the EO extension: yellow, rededge, and 2 narrow NIR bands
  • Scientific extension can be used in Collections.

Fixed

  • Updated language, fixed typos and examples.
  • Renamed pc:schema to pc:schemas in the Point Cloud extension.

Changes since 0.8.0rc1

  • Label extension:
    • moved label:classes to be a list of Class Objects from a single Class Object in spec markdown and json schema (matching previous example JSON).
    • moved label:overview to be a list of Overview Objects from a single Overview Object in spec markdown and json schema (matching previous example JSON).
    • Renamed fields to use plural forms (label:property -> label:properties, label:task -> label:tasks, label:method -> label:methods and label:overview -> label:overviews)
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