generated: '2026-09-17'
method: searched
source: https://docs.mlsgrid.com/llms.txt
docs:
- https://docs.mlsgrid.com/
- https://www.mlsgrid.com/news
scheme:
  api_version: uri-path (v2)
  api_version_current: '2.0'
  release_notes: >-
    MLS Grid does not version the API on a release train. Change is announced per originating MLS as
    dated "Release" and "Recent Release" notices in the documentation site, each naming the MLS
    affected, the date of change, the resources affected and the type of change (field name changes,
    fields added, lookup name changes, legacy fields deprecated, new expandable resources, new MLS
    sources, IDX/VOW rules changes).
  advance_notice: >-
    Notices are published ahead of the effective date and are addressed to the technical contact on
    each data subscription; several also arrive by email to the vendor account primary contact.
  breaking_change_pattern: >-
    Field renames and lookup renames are the common breaking shape. Changes normally apply only to
    new or modified records after the release, not to records already replicated — except an MLS
    system migration (MARIS, 2025-05-12), which required a full re-import.
window: Entries published on docs.mlsgrid.com as of 2026-09-17 (37 notices, 2025-02-18 to 2026-09-08).
entries:
- date: '2026-09-08'
  title: 'Upcoming Changes to Media Delivery - Migration Away from Amazon AWS'
  mls: all
  type: breaking
  highlight: >-
    MLS Grid moved Media hosting off Amazon AWS to media.mlsgrid.com, effective 2026-09-08 at 12:00
    Mountain Time (first announced 2026-08-04). New Media URLs are signed, SINGLE-USE and expire one
    hour after generation; a second download inside that hour returns 429. S3 bucket-to-bucket
    transfer is withdrawn entirely and direct Amazon CloudFront access must be repointed at the CDN
    MLS Grid now operates. A non-expiring CDN option is available on request for consumers who cannot
    adopt the download-and-store workflow.
  url: https://docs.mlsgrid.com/releases/upcoming-changes-to-media-delivery-migration-away-from-amazon-aws.md
- date: '2026-06-05'
  title: PACMLS Now Available Through MLS Grid
  mls: PACMLS
  type: new-mls-source
  url: https://docs.mlsgrid.com/recent-releases/pacmls-now-available-through-mls-grid.md
- date: '2026-06-01'
  title: Changes to MLS Grid Media Access
  mls: all
  type: breaking
  highlight: >-
    All media downloads from a MediaURL must send a User-Agent header whose value is the OAuth 2
    access token. From 2026-06-01 any other User-Agent may be denied media access.
  url: https://docs.mlsgrid.com/releases/changes-to-mls-grid-media-access.md
- date: '2026-05-27'
  title: 'SCKansas MLS: Changes to MLS Grid IDX and VOW Rules'
  mls: SCKansas MLS
  type: rules-change
  url: https://docs.mlsgrid.com/releases/sckansas-mls-changes-to-mls-grid-idx-and-vow-rules.md
- date: '2026-04-29'
  title: 'Realtracs MLS: Changes to MLS Grid IDX and VOW Rules'
  mls: Realtracs MLS
  type: rules-change
  url: https://docs.mlsgrid.com/releases/realtracs-mls-changes-to-mls-grid-idx-and-vow-rules.md
- date: '2025-12-08'
  title: 'Northstar MLS: Upcoming Addition of Expandable Resource and Standalone Resource'
  mls: Northstar MLS
  type: additions
  highlight: New expandable BodyOfWater resource and new UnitRooms resource on Property.
  url: https://docs.mlsgrid.com/recent-releases/northstar-mls-upcoming-addition-of-expandable-resource-and-standalone-resource.md
- date: '2025-11-03'
  title: IRES Multiple Listing Service Now Available Through MLS Grid
  mls: IRES MLS
  type: new-mls-source
  url: https://docs.mlsgrid.com/recent-releases/ires-multiple-listing-service-now-available-through-mls-grid.md
- date: '2025-10-31'
  title: East Central Iowa Multiple Listing Service Now Available Through MLS Grid
  mls: East Central Iowa MLS Inc.
  type: new-mls-source
  url: https://docs.mlsgrid.com/recent-releases/east-central-iowa-multiple-listing-service-now-available-through-mls-grid.md
- date: '2025-10-29'
  title: 'MRED: IDX and VOW Rules Changes'
  mls: MRED
  type: rules-change
  url: https://docs.mlsgrid.com/recent-releases/mred-idx-and-vow-rules-changes.md
- date: '2025-06-11'
  title: 'Heartland MLS: Adding Coming Soon listings to IDX and VOW'
  mls: Heartland MLS (HMLS)
  type: additions
  url: https://docs.mlsgrid.com/recent-releases/heartland-mls-adding-coming-soon-listings-to-idx-and-vow.md
- date: '2025-05-12'
  title: 'MARIS MLS: Migration to new MLS system and new OriginatingSystemName'
  mls: MARIS MLS
  type: breaking
  highlight: >-
    New OriginatingSystemName (maris2). Data consumers had to re-import all MARIS MLS data.
  url: https://docs.mlsgrid.com/recent-releases/maris-mls-migration-to-new-mls-system-and-new-originatingsystemname.md
- date: '2025-05-01'
  title: 'REcolorado: Upcoming Changes to Fields and Lookups'
  mls: REcolorado
  type: breaking
  highlight: Field name changes.
  url: https://docs.mlsgrid.com/recent-releases/recolorado-upcoming-changes-to-fields-and-lookups.md
- date: '2025-04-30'
  title: 'RMLS Alliance: Upcoming Changes to Fields and Lookups'
  mls: RMLS Alliance
  type: breaking
  highlight: Field name changes, lookup name changes.
  url: https://docs.mlsgrid.com/recent-releases/rmls-alliance-upcoming-changes-to-fields-and-lookups.md
- date: '2025-04-28'
  title: 'RANW MLS: Upcoming Changes to Fields and Lookups'
  mls: RANW MLS
  type: breaking
  highlight: Field name changes.
  url: https://docs.mlsgrid.com/recent-releases/ranw-mls-upcoming-changes-to-fields-and-lookups.md
- date: '2025-04-28'
  title: 'Spokane Realtors MLS: Upcoming Changes to Fields and Lookups'
  mls: Spokane Realtors MLS
  type: breaking
  highlight: Field name changes, lookup name changes.
  url: https://docs.mlsgrid.com/recent-releases/spokane-realtors-mls-upcoming-changes-to-fields-and-lookups.md
- date: '2025-04-25'
  title: 'South Central Kansas MLS: Upcoming Changes to Fields and Lookups'
  mls: South Central Kansas MLS
  type: breaking
  highlight: Field name changes, lookup name changes.
  url: https://docs.mlsgrid.com/recent-releases/south-central-kansas-mls-upcoming-changes-to-fields-and-lookups.md
- date: '2025-04-24'
  title: 'NoCoast MLS: Upcoming Changes to Fields and Lookups'
  mls: NoCoast MLS
  type: breaking
  highlight: Field name changes, lookup name changes.
  url: https://docs.mlsgrid.com/recent-releases/nocoast-mls-upcoming-changes-to-fields-and-lookups.md
- date: '2025-04-23'
  title: 'NEIRBR MLS: Upcoming Changes to Fields and Lookups'
  mls: NEIRBR MLS
  type: breaking
  highlight: Field name changes, lookup name changes.
  url: https://docs.mlsgrid.com/recent-releases/neirbr-mls-upcoming-changes-to-fields-and-lookups.md
- date: '2025-04-22'
  title: 'LBOR MLS: Upcoming Changes to Fields and Lookups'
  mls: LBOR MLS
  type: breaking
  highlight: Field name changes, lookup name changes.
  url: https://docs.mlsgrid.com/recent-releases/lbor-mls-upcoming-changes-to-fields-and-lookups.md
- date: '2025-04-17'
  title: 'Flint Hills MLS: Upcoming Changes to Fields'
  mls: Flint Hills MLS
  type: additions
  highlight: Fields added.
  url: https://docs.mlsgrid.com/recent-releases/flint-hills-mls-upcoming-changes-to-fields.md
- date: '2025-04-11'
  title: 'Southern Missouri Regional (SOMO) MLS: Upcoming Changes to Fields'
  mls: SOMO MLS
  type: breaking
  highlight: Field name changes, fields added.
  url: https://docs.mlsgrid.com/recent-releases/southern-missouri-regional-somo-mls-upcoming-changes-to-fields.md
- date: '2025-04-11'
  title: 'Prescott Area Association of Realtors (PAAR) MLS: Upcoming Changes to Fields'
  mls: PAAR MLS
  type: breaking
  highlight: Field name changes, fields added.
  url: https://docs.mlsgrid.com/recent-releases/prescott-area-association-of-realtors-paar-mls-upcoming-changes-to-fields.md
- date: '2025-04-10'
  title: 'Pike Wayne Association of Realtors: Upcoming Changes to Fields'
  mls: Pike/Wayne Association of REALTORS
  type: breaking
  highlight: Field name changes.
  url: https://docs.mlsgrid.com/recent-releases/pike-wayne-association-of-realtors-upcoming-changes-to-fields.md
- date: '2025-04-10'
  title: 'Greater Scranton MLS: Upcoming Changes to Fields'
  mls: Greater Scranton MLS
  type: breaking
  highlight: Field name changes.
  url: https://docs.mlsgrid.com/recent-releases/greater-scranton-mls-upcoming-changes-to-fields.md
- date: '2025-04-09'
  title: 'MRED MLS: Upcoming Changes to Fields'
  mls: MRED MLS
  type: breaking
  highlight: Field name changes, fields added.
  url: https://docs.mlsgrid.com/recent-releases/mred-mls-upcoming-changes-to-fields-april-9-2025.md
- date: '2025-04-08'
  title: 'Sunflower MLS: Upcoming Changes to Fields'
  mls: Sunflower MLS
  type: breaking
  highlight: Field name changes, fields added.
  url: https://docs.mlsgrid.com/recent-releases/sunflower-mls-upcoming-changes-to-fields.md
- date: '2025-04-07'
  title: 'Southern New Mexico MLS: Upcoming Changes to Fields'
  mls: Southern New Mexico MLS
  type: breaking
  highlight: Field name changes, fields added.
  url: https://docs.mlsgrid.com/recent-releases/southern-new-mexico-mls-upcoming-changes-to-fields.md
- date: '2025-04-04'
  title: 'Spartanburg MLS: Upcoming Changes to Fields'
  mls: Spartanburg MLS
  type: breaking
  highlight: Field name changes, fields added.
  url: https://docs.mlsgrid.com/recent-releases/spartanburg-mls-upcoming-changes-to-fields.md
- date: '2025-04-03'
  title: 'RRAR MLS: Upcoming Changes to Fields'
  mls: RRAR MLS
  type: breaking
  highlight: Field name changes, fields added.
  url: https://docs.mlsgrid.com/recent-releases/rrar-mls-upcoming-changes-to-fields.md
- date: '2025-04-02'
  title: 'MRED MLS: Upcoming Changes to Fields'
  mls: MRED MLS
  type: breaking
  highlight: Field name changes, fields added.
  url: https://docs.mlsgrid.com/recent-releases/mred-mls-upcoming-changes-to-fields-april-2-2025.md
- date: '2025-04-01'
  title: 'NIRA (Northwest Indiana REALTOR Association) MLS: Upcoming Changes to Fields'
  mls: NIRA MLS
  type: breaking
  highlight: Field name changes, fields added.
  url: https://docs.mlsgrid.com/recent-releases/nira-northwest-indiana-realtor-association-mls-upcoming-changes-to-fields.md
- date: '2025-03-31'
  title: 'Heartland MLS: Upcoming Changes to Fields'
  mls: Heartland MLS
  type: breaking
  highlight: Field name changes, fields added.
  url: https://docs.mlsgrid.com/recent-releases/heartland-mls-upcoming-changes-to-fields.md
- date: '2025-03-11'
  title: 'Unlock MLS: Upcoming Changes to Fields and Lookups'
  mls: Unlock MLS
  type: breaking
  highlight: Field name changes, lookup name changes.
  url: https://docs.mlsgrid.com/recent-releases/unlock-mls-upcoming-changes-to-fields-and-lookups.md
- date: '2025-03-11'
  title: 'OneKey MLS: Upcoming Changes to Fields and Lookups'
  mls: OneKey MLS
  type: breaking
  highlight: Field name changes, lookup name changes.
  url: https://docs.mlsgrid.com/recent-releases/onekey-mls-upcoming-changes-to-fields-and-lookups.md
- date: '2025-03-06'
  title: 'LBOR MLS: Status and Field Addition'
  mls: LBOR MLS
  type: additions
  highlight: Status and field added.
  url: https://docs.mlsgrid.com/recent-releases/lbor-mls-status-and-field-addition.md
- date: '2025-03-05'
  title: 'NWMLS: Upcoming Changes to Fields'
  mls: NWMLS
  type: breaking
  highlight: Field name changes, legacy fields deprecated (evening of March 5, 2025).
  url: https://docs.mlsgrid.com/recent-releases/nwmls-upcoming-changes-to-fields.md
- date: '2025-02-18'
  title: 'Realtracs: Upcoming Changes to Fields and Lookups'
  mls: Realtracs MLS
  type: breaking
  highlight: Field name changes, lookup name changes.
  url: https://docs.mlsgrid.com/recent-releases/realtracs-upcoming-changes-to-fields-and-lookups.md
rechecked_on: '2026-09-17'
rechecked_note: >-
  Re-read https://docs.mlsgrid.com/llms.txt (HTTP 200) on 2026-09-17. One notice is new since the
  previous pass - the media delivery migration above - and GitBook has re-filed several 2026 notices
  from /releases/ to /recent-releases/; URLs corrected where the move was confirmed.