generated: '2026-08-13'
method: searched
source: https://developer.ispot.tv/releases/api/v4/notes
api: iSpot REST API v4
scheme: v4.MINOR.PATCH
release_classes:
- Minor release
- Maintenance release
current_version: v4.49.3
current_version_date: '2025-11-04'
coverage: recent window only; the live page is the source of truth
note: >-
  Public, dated, reverse-chronological changelog on iSpot's own developer site.
  Entries are terse and often say only "Misc Development Improvements"; the ones
  captured below are the entries that carry an actual API-contract change
  (endpoints, filters, auth, rate limits, response shape).
entries:
- version: v4.49.3
  date: '2025-11-04'
  class: maintenance
  breaking: false
  highlights:
  - Minor performance improvements.
- version: v4.49.0
  date: '2025-10-10'
  class: minor
  breaking: false
  highlights:
  - Adjustment to custom reporting.
- version: v4.48.2
  date: '2025-09-12'
  class: maintenance
  breaking: false
  highlights:
  - Fixed an issue with API token structure.
- version: v4.48.1
  date: '2025-08-29'
  class: maintenance
  breaking: false
  highlights:
  - Multiple campaign IDs appearing in params fixed.
  - OpenAPI annotation comparison endpoint fixed.
- version: v4.48.0
  date: '2025-08-22'
  class: minor
  breaking: false
  highlights:
  - Publisher-vs-publisher advanced audiences made available.
- version: v4.47.0
  date: '2025-08-08'
  class: minor
  breaking: false
  highlights:
  - Caching method changed for performance.
- version: v4.46.0
  date: '2025-07-16'
  class: minor
  breaking: false
  additions:
  - New endpoint filters.
  highlights:
  - OAuth fix.
- version: v4.45.1
  date: '2025-05-05'
  class: maintenance
  breaking: false
  additions:
  - Netflix added as an available source.
- version: v4.44.0
  date: '2025-04-09'
  class: minor
  breaking: false
  highlights:
  - Amazon as a source updated to Core24 methodology.
- version: v4.43.0
  date: '2025-03-21'
  class: minor
  breaking: false
  highlights:
  - Metrics call updated to Core24 methodology.
  - Support added for large DMP segment IDs.
  - Advanced Audiences now uses Core23 and Core24 methodologies.
  - Fixed a 500 on the Advanced Audience Segment endpoint.
- version: v4.42.0
  date: '2025-02-28'
  class: minor
  breaking: false
  highlights:
  - Core23 data can now be retrieved.
- version: v4.41.0
  date: '2025-02-07'
  class: minor
  breaking: true
  breaking_detail: >-
    The v4 spots endpoint now returns an object instead of a list of an object —
    a response-shape change to an existing endpoint.
- version: v4.40.0
  date: '2025-02-06'
  class: minor
  breaking: false
  additions:
  - Publisher-vs-publisher implemented in the API.
- version: v4.38.0
  date: '2024-09-06'
  class: minor
  breaking: false
  additions:
  - Link added for associated CRA data.
- version: v4.34.0
  date: '2024-06-06'
  class: minor
  breaking: false
  additions:
  - /v4/metrics/ott and /v4/metrics/ott/conversions now support filter[spot] and filter[creative].
- version: v4.33.0
  date: '2024-02-29'
  class: maintenance
  breaking: false
  additions:
  - Support for mobile IP measurement.
- version: v4.31.0
  date: '2023-12-07'
  class: minor
  breaking: false
  additions:
  - New Streaming Competitive module — endpoint /v4/metrics/competitive.
- version: v4.30.0
  date: '2023-12-05'
  class: maintenance
  breaking: false
  highlights:
  - OTT conversions deduped when the same media is tagged with different sources.
- version: v4.29.0
  date: '2023-10-04'
  class: minor
  breaking: false
  additions:
  - New Streaming Verification module — endpoint /v4/metrics/verified/audience.
- version: v4.28.11
  date: '2023-05-11'
  class: maintenance
  breaking: false
  highlights:
  - Rate limits increased for the metric, spots and show endpoints.
- version: v4.28.2
  date: '2023-04-04'
  class: maintenance
  breaking: false
  highlights:
  - campaigns/ott date-range filtering fixed.
  - Unauthenticated requests now return a proper Unauthenticated error instead of a PHP fatal.
  - metrics/impressions/ott rate limit raised to 50 requests per 60 seconds.
- version: v4.27.0
  date: '2023-01-20'
  class: maintenance
  breaking: false
  highlights:
  - Audience and OTT endpoints can now filter for ages 2+.
  - For default household filters, impression percentages replaced with counts.
- version: v4.26.1
  date: '2022-12-12'
  class: maintenance
  breaking: false
  additions:
  - Sorting on publisher and impressions for UM Lift — /v4/metrics/conversions/{SITE_ID}/ott/lift/publisher.
- version: v4.25.7
  date: '2022-12-05'
  class: maintenance
  breaking: false
  additions:
  - Dynamic filters on /v4/networks/family/extended (network_family, advertiser_id, start_date, end_date, is_parent).
- version: v4.25.3
  date: '2022-10-21'
  class: maintenance
  breaking: false
  additions:
  - New endpoints /v4/episodes and /v4/episodes/{id}.
x-evidence:
- url: https://developer.ispot.tv/releases/api/v4/notes
  http_status: 200
  fetched: '2026-08-13'