Changelog

Track API updates, new features, improvements, and fixes. We follow semantic versioning and strive for backwards compatibility.

October 2026

v2.4.1 Latest

October 16, 2026

Bug Fixes

• A cached Google result whose stored HTML has expired is now crawled fresh instead of served. Before, the postback's html link pointed at a file that no longer existed, and multi-page (depth) results could fail without a postback

v2.4.0

October 14, 2026

Changes

• Weekly SERP reuse - frequency is now the interval at which you track a keyword. Google and YouTube results are reused for at least 7 days, so hourly to weekly keywords are re-crawled weekly and monthly (720) keywords monthly. 0 or less still crawls fresh

January 2026

v2.3.0

January 15, 2026

New Features

• Batch insert optimization - Improved batch endpoint performance by processing payloads in parallel instead of sequentially
• Enhanced mobile parser - Better extraction of mobile-specific SERP features including app packs and mobile sitelinks

Improvements

• Reduced average task processing time by 15%
• Improved accuracy of desktop SERP parser for featured snippets
• Added X-Request-ID header to all responses for debugging

Bug Fixes

• Fixed mobile parser not correctly identifying some local pack results
• Fixed desktop parser missing sitelinks in certain edge cases

December 2025

v2.2.0

December 10, 2025

New Features

• Webhook retry mechanism - Failed webhook deliveries are now automatically retried up to 3 times with exponential backoff
• Task cancellation - New endpoint to cancel pending tasks (DELETE /api/v2/serp/crawl/{task_id})

Improvements

• Webhook payloads now include attempt_number field
• Added support for custom headers in webhook requests
• Improved error messages for invalid location codes

v2.1.1

December 3, 2025

Bug Fixes

• Fixed race condition in batch processing causing duplicate tasks
• Fixed incorrect credit calculation for depth > 50
• Fixed timezone handling in monthly_searches data

November 2025

v2.1.0

November 20, 2025

New Features

• Google SERP v2 - New endpoint with configurable depth for multi-page result collection (up to 100 results)
• Frequency caching - New frequency parameter to reuse recent results and save credits

Improvements

• Added People Also Ask (PAA) extraction to SERP results
• Added Related Searches extraction to SERP results
• Improved handling of localized SERPs

Deprecations

• /api/v1/serp/google is now deprecated for new integrations. Use /api/v2/serp/crawl instead. v1 endpoints will be supported until December 2026.

v2.0.2

November 5, 2025

Bug Fixes

• Fixed keyword research endpoint returning empty results for some queries
• Fixed autocomplete suggestions missing for non-English languages

October 2025

v2.0.0

October 1, 2025

Breaking Changes

• Authentication - Switched from API key in query parameter to Bearer token in Authorization header
• Response format - Standardized all responses to use result wrapper object
• Error format - New error response structure with error and message fields

New Features

• New base URL: engine.v2.serpwatch.io
• Keyword Research API with ideas, suggestions, and trends endpoints
• Keyword Data API for search volume and competition metrics
• Webhook support for all async endpoints
• Batch endpoints for high-volume processing

Improvements

• 5x improvement in average response times
• 99.9% uptime SLA for Professional and Enterprise plans
• New dashboard for API key management and usage monitoring