generated: '2026-09-03'
method: searched
source: https://api.adanos.org/changelog
scheme: keep-a-changelog + semver
current_version: 1.50.0
note: >-
  Dated, versioned changelog served at https://api.adanos.org/changelog (HTTP 200, 2026-09-03),
  with per-release Migration notes. Recent window only.
entries:
  - version: 1.50.0
    date: '2026-09-03'
    breaking: false
    highlights:
      - Polymarket historical data now reaches back to October 11, 2025.
  - version: 1.49.1
    date: '2026-08-12'
    breaking: false
    highlights:
      - Historical Polymarket Daily top_mentions retain markets open during the requested UTC day
        even when a later snapshot shows them resolved or inactive.
  - version: 1.49.0
    date: '2026-07-26'
    breaking: false
    highlights:
      - News sentiment upgraded to v5.5 with more precise company-level attribution and reduced
        cross-company sentiment spillover; scores can differ from v5.4.
  - version: 1.48.4
    date: '2026-07-21'
    breaking: false
    highlights:
      - Canonical Buzz score for a closed UTC day is now consistent between single-day requests
        and trend_history across News and Polymarket sector/country responses.
  - version: 1.48.3
    date: '2026-07-16'
    breaking: false
    highlights:
      - Closed single-day Polymarket responses use the final UTC-day score; less identity data
        scanned on long X/Polymarket sector/country requests.
  - version: 1.48.2
    date: '2026-07-16'
    breaking: false
    highlights:
      - Faster long/custom /trending windows; canceled analytics queries return the documented 503.
  - version: 1.48.1
    date: '2026-07-16'
    breaking: false
    highlights:
      - Stable daily semantics for trend_history across all platforms; controlled 503/504 behavior
        for transient database failures and 90-second deadline overruns.
      - Clients must not assume trend_history[-1] == buzz_score (supersedes 1.48.0 live-window behavior).
  - version: 1.48.0
    date: '2026-07-15'
    breaking: false
    highlights:
      - Analytics endpoints return exact distinct counts across the complete requested UTC window,
        including custom from/to ranges up to 365 days.