v3.0:

Breaking changes:

• flask_server: ATProto-decode JSON input, so methods receive native CID and bytes values instead of $link and $bytes dicts. (Also encode methods' output the same way, as ATProto JSON, but that's backward compatible. Details below.)

Non-breaking changes:

• Client, Server: new require_lexicons kwarg, defaults to True. If False, records with missing or unknown lexicons are skipped during validation instead of raising NotImplementedError.
• Schema validation:
  • Base.validate: new ignore kwarg, a sequence of property names to skip validating or truncating, anywhere in the record.
  • Fix ref type validation to accept string values that match their ref, eg token refs inside arrays or unions.
  • Fix minimum/maximum schema constraint of 0.
  • truncate: truncate string values inside arrays.
  • Fix crash on values with unexpected types when truncate is on but validate is off, and on non-object parameters values.
  • Fail on float values, which aren't in the data model
  • Support the new space lexicon type and space-ref string format, and allow space at:// URIs in the at-uri format.
• Base.decode_params: decode array values using their items type.
• XrpcError: new status and headers kwargs. flask_server uses them in the HTTP response.
• Server.method, Server.register: new override kwarg that allows replace an existing method.
• flask_server:
  • init_flask: new fallback kwarg, a callable that handles methods the Server doesn't implement instead of returning MethodNotImplemented. Useful for ATProto service proxying.
  • Serve OPTIONS CORS preflight requests for methods without lexicons, and for subscriptions.
  • ATProto-encode JSON output, so methods can return native CID and bytes values, which are encoded as $link and $bytes.
• Bundle new lexicons:
  • Blacksky (community.blacksky.assembly), from blacksky-algorithms/assembly.blacksky.community@e95bd1f.
  • Grain (social.grain), from grain.social/grain@319af78.
  • Spark Social (so.sprk), from sprksocial/server@3f4728d.