generated: '2026-08-13'
method: searched
source: https://developers.similarweb.com/changelog.rss
description: >-
  Similarweb publishes a dated developer changelog on its ReadMe docs host, with a machine-
  readable RSS feed. As of the V5 launch the changelog is moving to the new GitBook docs
  host (docs.similarweb.com/changelog/similarweb/api-v5), which the V5 release note calls
  an "automatic changelog". The recent window below is transcribed from the RSS feed; dates
  are the feed's pubDate values.

feeds:
  rss: https://developers.similarweb.com/changelog.rss
  html: https://developers.similarweb.com/changelog
  successor: https://docs.similarweb.com/changelog/similarweb/api-v5

versioning_scheme: uri-path
current_version: v5

entries:
- version: v5
  date: '2026-03-03'
  title: Similarweb API V5 is now live!
  breaking: true
  highlights:
  - Multi-metric requests in a single API call
  - One API key for both REST and Batch endpoints (V4 required separate keys)
  - Standardized response formats and error handling across every endpoint
  - Full MCP and AI-agent support
  - Legacy REST endpoints scheduled for sunset on 2026-10-06
  url: https://developers.similarweb.com/changelog/similarweb-api-v5-is-now-live
- date: '2025-05-08'
  title: Google Cloud Storage (GCS) Integration
  breaking: false
  additions: [Batch API delivery to Google Cloud Storage]
  url: https://developers.similarweb.com/changelog/google-cloud-storage-gcs-integration
- date: '2025-04-10'
  title: New Endpoint - New vs. Returning (All Traffic) REST and Batch API
  breaking: false
  additions: [new-vs-returning visitors metric on REST and Batch]
  url: https://developers.similarweb.com/changelog/new-endpoint-new-vs-returning-total
- date: '2025-03-21'
  title: New Endpoint - Android App Downloads
  breaking: false
  additions: [Android app downloads endpoint]
- date: '2025-03-21'
  title: New Endpoint - iOS App Downloads
  breaking: false
  additions: [iOS app downloads endpoint]
- date: '2025-03-17'
  title: New Endpoint - Segment Marketing Channels (All Traffic)
  breaking: false
  additions: [segment-level marketing channel breakdown]
- date: '2025-03-13'
  title: New Endpoint - Landing Pages
  breaking: false
  additions: [landing pages endpoint]
- date: '2025-03-13'
  title: New Endpoint - Website Overview - Branded Distribution by Clicks
  breaking: false
  additions: [branded distribution by clicks]
- date: '2024-12-31'
  title: Demographics 1.0 endpoints will be deprecated on 01.01.25
  breaking: true
  deprecations: [Demographics 1.0 endpoints]
  url: https://developers.similarweb.com/changelog/demographics-10-endpoints-will-be-deprecated-on-010125
- date: '2024-12-05'
  title: 'New Keyword Research Endpoints: SERP Players, Website Keywords, and Keywords Overview'
  breaking: false
  additions: [SERP Players, Website Keywords, Keywords Overview]
  url: https://developers.similarweb.com/changelog/serp-players-and-website-keywords

entry_count: 10
window: 2024-12-05 to 2026-03-03

x-evidence:
  fetched: '2026-08-13'
  probes:
  - {url: https://developers.similarweb.com/changelog.rss, http_status: 200}