> ## Documentation Index
> Fetch the complete documentation index at: https://oxy.tech/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Data App Validation, Advanced Semantic Routing and Model Configuration Headers Support

> Real-time and build-time validation for data app within the IDE:

<Icon icon="calendar" iconType="regular" size={16} /> **August 21, 2025**

### **Data App Validation**

Real-time and build-time validation for data app within the IDE:

* **Live Error Detection** - Immediate feedback when writing incorrect YAML keys or unexpected values data configurations
* **App Preview Validation** - Data app preview continues running with detailed error hint instead of complete crashes when validation errors occur

<img src="https://mintcdn.com/oxy-internal/qygWo0nXJD2A89_J/changelog/images/2025-08-21/25751.png?fit=max&auto=format&n=qygWo0nXJD2A89_J&q=85&s=fc76999729c73b9f73ee85e190b05970" alt="Image" width="2096" height="816" data-path="changelog/images/2025-08-21/25751.png" />

<img src="https://mintcdn.com/oxy-internal/qygWo0nXJD2A89_J/changelog/images/2025-08-21/13592.png?fit=max&auto=format&n=qygWo0nXJD2A89_J&q=85&s=766041b20c51486a341731425c02e88a" alt="Image" width="1842" height="790" data-path="changelog/images/2025-08-21/13592.png" />

<img src="https://mintcdn.com/oxy-internal/qygWo0nXJD2A89_J/changelog/images/2025-08-21/9717.png?fit=max&auto=format&n=qygWo0nXJD2A89_J&q=85&s=3ce2869df74099cb02347e8416203cf1" alt="Image" width="858" height="428" data-path="changelog/images/2025-08-21/9717.png" />

### **Advanced Semantic Routing**

More intelligent workflow and agent selection with advanced semantic matching:

* **Enhanced Inclusion/Exclusion Logic** - Refactored routing system where each inclusion pattern has its own matching sensitivity, calculated dynamically based on proximity to exclusion patterns
* **Improved Semantic Precision** - Individual inclusion statements now have customized matching sensitivity, leading to more accurate routing decisions
* **Better Document Deduplication** - Enhanced search results where the best-matching inclusion per document determines relevance, preventing documents with many inclusions from dominating selections
* **Optimized Result Ranking** - Improved scoring algorithm that selects the most relevant inclusion per document for better LLM routing decisions

### **Model Configuration Headers Support**

New flexibility for AI model connections:

* **Custom Headers Support** - Model configurations now support custom headers for OpenAI
* **Gateway and Proxy Compatibility** - Enable connections through LLM gateways and corporate proxies with proper header configuration
* **Enterprise Integration** - Better support for corporate AI infrastructure and routing requirements

<img src="https://mintlify.s3.us-west-1.amazonaws.com/oxy-internal/changelog/images/2025-08-21/image.png" alt="Image" />

### **Other Platform Improvements**

Enhanced PostgreSQL compatibility with type system fixes, corrected API key error messaging, improved workflow replay performance through optimized state tracking, resolved potential deadlock scenarios with better edge case handling, and updated dependencies to latest versions for improved security and performance