On April 25, 2025, DEP will officially decommission the legacy INRIX data endpoints (/rm3p/dep_speed_tt_tmc and /rm3p/dep_speed_tt_xd) as announced in December 2024. INRIX data will still be available using the endpoints deployed in December 2024 (/rm3p/dep_inrix_tmc and /rm3p/dep_inrix_xd) which contain the full complement of of INRIX data available to DEP.

On April 25, 2025, DEP will also include a new <latestFeedTimestamp> element in parking data output for data sources that supply that information. The goal of adding this element is to indicate when the source last updated data to help DEP data consumers understand if data is current (even if it hasn’t changed), or if data is stale.

On March 24, 2025, the DEP API KITS data output now includes the newly added phase movement numbers. These numbers describe various movements defined at intersections (e.g. “Northbound Right”, “Northbound Thru”, “Northbound Left”, etc.). The new elements are available within the <phaseMovements> element in the signal inventory output. Additional information is available in the “Section 2.3 KITS Traffic Signal Supplemental Information” in the DEP API reference documentation.

On March 17, 2025, the DEP now includes the weather forecast data in GRIB2 format as provided by the NOAA National Centers for Environmental Prediction (NCEP). These files are update once an hour and provide geographic coverage for the entire continental USA.

On Sunday, March 16, 2025 between 4am and 8am, the University of Maryland Division of Information Technology will conduct a set of disaster recovery network resiliency tests that could cause intermittent service interruptions to DEP. This is a regular annual activity and it generally results in no discernable impact or at worst several seconds of connection interruptions over the entire duration of the test.

On March 4, 2025, the DEP now includes WMATA fare data added in a new section called <fares> which contains the fare amounts based on destination from the current stop. This data only shows up in the GTFS requests that use the type stop since fares are associated with each stop.

In addition to the new WMATA fare data, the DEP now also includes <linkLocation> element to accommodate traffic events with more than one <pointLocation> element.

On February 11, 2025, the DEP API output includes the Prince William County Neabsco parking garage data.