retain MDS

CHANGELOG.md

@@ -2,7 +2,6 @@
 
 ## v0.5.0
 
-- **Breaking change**: DMFR no longer supports feeds in the [MDS specification](https://github.com/openmobilityfoundation/mobility-data-specification). Transitland has expanded to support GTFS, GTFS Realtime, and GBFS, but has no immediate plans to support MDS.
 - A feed record can now have an optional `name` and `description` fields to provide additional context to DMFR editors and users of software that consume DMFR files.
 - When specifying an SPDX identifier for a feed license or DMFR license, the value will now be validated against a list of SPDX short-form identifiers. Sourced from https://github.com/spdx/license-list-data
 

json-schema/dmfr.schema-v0.5.0.json

@@ -44,8 +44,8 @@
           },
           "spec": {
             "type": "string",
-            "enum": ["gtfs", "gtfs-rt", "gbfs"],
-            "description": "Type of data contained in this feed: GTFS, GTFS-RT, or GBFS."
+            "enum": ["gtfs", "gtfs-rt", "gbfs", "mds"],
+            "description": "Type of data contained in this feed: GTFS, GTFS-RT, GBFS, or MDS."
           },
           "name": {
             "type": "string",
@@ -106,6 +106,11 @@
                 "type": "string",
                 "description": "Auto-discovery file in JSON format that links to all of the other GBFS files published by the system.",
                 "pattern": "^(http|https|ftp):\/\/[a-zA-Z0-9.,~#{}():&/%='?_/-]+$"
+              },
+              "mds_provider": {
+                "type": "string",
+                "description": "MDS provider API endpoints are intended to be implemented by mobility providers and consumed by regulatory agencies.",
+                "pattern": "^(http|https|ftp):\/\/[a-zA-Z0-9.,~#{}():&/%='?_/-]+$"
               }
             }
           },