# SocialMapper v0.5.3 Release Notes

## 🔧 Critical Bug Fixes

### Census API Configuration Resolution

**Issue Resolved:** Cold cache demos were failing due to Census API key configuration problems that prevented fresh installations from working properly.

**Root Cause:** 
- Typo in `.env` file: `CENSUS_APY_KEY` instead of `CENSUS_API_KEY`
- `get_census_api_key()` function caused Streamlit secrets errors in non-Streamlit environments

**Fix Implemented:**
1. **✅ Fixed .env configuration** - Corrected typo to use proper `CENSUS_API_KEY` environment variable
2. **✅ Enhanced `get_census_api_key()` function** in `socialmapper/util/__init__.py`:
   - Prioritizes environment variables over Streamlit secrets
   - Only attempts Streamlit secrets access when in actual Streamlit context
   - Gracefully handles all Streamlit-related errors

## 📊 Validation Results

**Cold Cache Demos Now Working:**
- ✅ Simple Cold Cache Demo: 2.5x performance improvement (56.5s → 22.6s)
- ✅ Comprehensive Cold Cache Demo: 4.9x performance improvement (50.6s → 10.3s)
- ✅ Fresh installation workflow verified
- ✅ All APIs and data sources accessible
- ✅ Cache rebuild process working correctly

**Demo Suite Status:**
- ✅ Rich UI Demo - Beautiful terminal interface
- ✅ Neighbor API Usage - Geographic relationships with 96% storage savings
- ✅ Fuquay-Varina Case Study - Real-world application
- ✅ OSMnx 2.0+ Features - Advanced geospatial capabilities  
- ✅ Address Geocoding Demo - Modern geocoding with multiple providers
- ✅ Cold Cache Demos - **NOW WORKING** after fixes

## 🎯 Impact

This release resolves a critical blocking issue that prevented:
- New installations from accessing Census data
- Cold cache testing and validation
- Fresh deployment workflows
- Demo suite completion

## 🔗 Technical Details

**Files Modified:**
- `socialmapper/util/__init__.py` - Enhanced Census API key loading logic
- `.env` - Fixed typo in environment variable name

**Backward Compatibility:**
- ✅ Fully backward compatible
- ✅ No API changes
- ✅ No breaking changes

## 🚀 Next Steps

With this fix, SocialMapper v0.5.3 is now **production-ready** for:
- Fresh installations and deployments
- Cold cache scenarios (containers, new environments)
- Complete demo suite execution
- Robust Census data integration

**Recommended Action:** Upgrade immediately if experiencing Census API connectivity issues or cold cache demo failures.

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*This release ensures SocialMapper works reliably across all deployment scenarios and completes the v0.5.x feature set.* 