# 1. Release Notes

# Documentation Change Log

This section documents version updates and important changes to the FoxData API documentation, helping users quickly understand the evolution of API capabilities.

Documentation updates may include, but are not limited to:
- New APIs or features
- Adjustments to API parameters or return fields
- Changes to data definitions or rule descriptions
- Bug fixes and performance optimizations
- Notes on backward-incompatible changes

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## Update History

### v1.4.0
**Release Date: December 20, 2025**

- Added application metric monitoring
- Routine API data maintenance  

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### v1.3.0
**Release Date: November 14, 2025**

- Added user engagement API service  
- Added bid keyword cycle monitoring, active customer rankings, and bid keyword API services
- Added application CPP API service
- Fixed issues with certain API exceptions    

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### v1.2.0
**Release Date: September 12, 2025**

- Updated data service coverage (global coverage)
- Added ASO keyword mining API
- Fixed issues with certain API exceptions  

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### v1.1.0
**Release Date: Before 2025**

- Added rate limiting and stability guidelines  
- Optimized definitions of general error codes  
- Fixed inconsistencies in the naming of return fields for certain APIs  

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