> ## Documentation Index
> Fetch the complete documentation index at: https://cortex-ad5578da.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Changelog

> Stay up to date with the latest features, improvements, and updates to Cortex. We're constantly improving our platform to deliver better performance, new features, and enhanced developer experience.

## August 2025

### Version 3.2.5 - August 1, 2025

<CardGroup cols={1}>
  <Card title="🔍 Search & Performance">
    * **Query Caching Optimization**: 40% faster response times for repeated queries
    * **Index Compaction**: Reduced storage footprint by 25% through better compression
    * **Load Balancer Improvements**: Better traffic distribution across nodes
    * **Connection Pool Optimization**: Reduced connection overhead by 30%
  </Card>
</CardGroup>

***

### Version 3.2.4 - July 25, 2025

<CardGroup cols={1}>
  <Card title="📊 Analytics & Quality">
    * **Query Performance Metrics**: Detailed latency breakdown per query stage
    * **Usage Analytics Dashboard**: Real-time monitoring of API usage patterns
    * **Relevance Scoring Improvements**: Better ranking for domain-specific queries
    * **Duplicate Detection**: Automatic deduplication of similar search results
  </Card>
</CardGroup>

***

### Version 3.2.3 - July 20, 2025

<CardGroup cols={1}>
  <Card title="⚡ Vector Operations & Security">
    * **Vector Quantization**: 8-bit quantization reduces memory usage by 50%
    * **Batch Processing**: Support for processing up to 500 documents simultaneously
    * **Rate Limiting**: Per-tenant rate limiting with burst allowance
    * **Input Validation**: Enhanced validation for uploaded document formats
  </Card>
</CardGroup>

***

### Version 3.2.2 - July 15, 2025

<CardGroup cols={1}>
  <Card title="🔧 API & Search Features">
    * **Timeout Configuration**: Configurable timeout settings for long-running queries
    * **Error Handling**: More descriptive error messages with suggested fixes
    * **Fuzzy Matching**: Typo-tolerant search with configurable edit distance
    * **Filter Optimization**: 60% faster filtering on metadata fields
  </Card>
</CardGroup>

***

### Version 3.2.1 - July 10, 2025

<CardGroup cols={1}>
  <Card title="🧠 AI & Scalability">
    * **Context Window Expansion**: Support for 16K token context in answer generation
    * **Citation Accuracy**: Improved precision in source attribution
    * **Horizontal Scaling**: Auto-scaling based on query load
    * **Read Replicas**: Read-only replicas for better query distribution
  </Card>
</CardGroup>

***

### Version 3.2.0 - July 5, 2025

<CardGroup cols={1}>
  <Card title="🎛️ Configuration & Processing">
    * **Dynamic Configuration**: Update search parameters without restart
    * **Environment Variables**: Better configuration management through env vars
    * **Incremental Indexing**: Update indices without full rebuild
    * **Background Processing**: Non-blocking document processing pipeline
  </Card>
</CardGroup>

***

## June 2025

### Version 3.1.6 - June 28, 2025

<CardGroup cols={1}>
  <Card title="📊 Monitoring & Vector Operations">
    * **Health Checks**: Comprehensive health monitoring endpoints
    * **Metrics Export**: Prometheus-compatible metrics for monitoring
    * **HNSW Index Optimization**: 30% faster nearest neighbor search
    * **Embedding Model Updates**: Support for latest sentence-transformer models
  </Card>
</CardGroup>

***

### Version 3.1.5 - June 21, 2025

<CardGroup cols={1}>
  <Card title="🛠️ Developer Experience & Content">
    * **SDK Updates**: Improved Python and JavaScript SDK with better error handling
    * **API Documentation**: Interactive examples with curl and code samples
    * **PDF Layout Detection**: Better extraction from complex PDF layouts
    * **Table Extraction**: Improved parsing of tabular data from documents
  </Card>
</CardGroup>

***

### Version 3.1.4 - June 14, 2025

<CardGroup cols={1}>
  <Card title="🎯 Search Precision & Storage">
    * **Semantic Search Tuning**: Fine-tuned embeddings for technical content
    * **Query Expansion**: Automatic expansion of short queries with related terms
    * **Compression Improvements**: Lossless compression reduces storage by 35%
    * **Garbage Collection**: Automatic cleanup of unused vector embeddings
  </Card>
</CardGroup>

***

### Version 3.1.3 - June 7, 2025

<CardGroup cols={1}>
  <Card title="🚀 Performance & Bug Fixes">
    * **Multi-Threading**: Parallel processing for batch document uploads
    * **Memory Management**: Optimized memory usage for large document collections
    * **Memory Leak Fix**: Resolved memory leaks in long-running search operations
    * **Unicode Handling**: Better support for non-Latin character sets
  </Card>
</CardGroup>

***

### Version 3.1.2 - May 31, 2025

<CardGroup cols={1}>
  <Card title="📱 Multi-Modal & Customization">
    * **Image Embedding**: Support for image-text multi-modal search
    * **OCR Integration**: Extract and index text from images in documents
    * **Custom Scoring**: User-defined scoring functions for specialized domains
    * **Boost Parameters**: Configurable boost factors for recent or popular content
  </Card>
</CardGroup>

***

### Version 3.1.1 - May 24, 2025

<CardGroup cols={1}>
  <Card title="🔄 Real-time & Analytics">
    * **Streaming Indexing**: Real-time indexing of new documents
    * **Live Configuration**: Update search parameters without system restart
    * **Query Analytics**: Track popular queries and search patterns
    * **Performance Insights**: Identify slow queries and optimization opportunities
  </Card>
</CardGroup>

***

### Version 3.1.0 - May 17, 2025

<CardGroup cols={1}>
  <Card title="🎯 Answer Quality & Search">
    * **Response Filtering**: Filter out low-confidence answers automatically
    * **Source Diversity**: Ensure answers draw from multiple diverse sources
    * **Hybrid Search Improvements**: Better fusion of semantic and keyword search
    * **Personalization**: User-specific search result ranking based on history
  </Card>
</CardGroup>

***

### Version 3.0.9 - May 10, 2025

<CardGroup cols={1}>
  <Card title="⚡ Optimization & Reliability">
    * **Query Optimization**: 25% reduction in average query latency
    * **Connection Pooling**: Improved database connection management
    * **Circuit Breaker**: Automatic failover for degraded services
    * **Retry Logic**: Intelligent retry mechanisms for transient failures
  </Card>
</CardGroup>

***

### Version 3.0.8 - May 3, 2025

<CardGroup cols={1}>
  <Card title="🎉 Major Release & Data Management">
    * **Agent Routing**: Automatic routing to specialized AI agents
    * **Multi-Step Reasoning**: Break complex queries into logical steps
    * **Data Retention Policies**: Configurable retention for different content types
    * **Backup Optimization**: Incremental backups with faster restore times
  </Card>
</CardGroup>

***

## April 2025

### Version 2.9.7 - April 26, 2025

<CardGroup cols={1}>
  <Card title="🔧 API & Search Accuracy">
    * **Batch Operations**: Bulk delete and update operations
    * **Webhook Support**: Real-time notifications for document processing events
    * **Relevance Tuning**: Improved relevance scoring for technical documentation
    * **Noise Reduction**: Better filtering of irrelevant search results
  </Card>
</CardGroup>

***

### Version 2.9.6 - April 19, 2025

<CardGroup cols={1}>
  <Card title="💾 Storage & Processing">
    * **Index Optimization**: 20% reduction in index size through better encoding
    * **Cold Storage**: Automatic archival of rarely accessed content
    * **Parallel Processing**: Multi-threaded document processing
    * **Queue Management**: Better handling of large document upload queues
  </Card>
</CardGroup>

***

### Version 2.9.5 - April 12, 2025

<CardGroup cols={1}>
  <Card title="🛠️ Infrastructure & Content">
    * **Auto-Scaling**: Automatic scaling based on traffic patterns
    * **Load Distribution**: Improved load balancing across service instances
    * **Improved OCR**: Better text extraction from scanned documents
  </Card>
</CardGroup>

***

### Version 2.9.4 - April 5, 2025

<CardGroup cols={1}>
  <Card title="🎛️ UX & Performance">
    * **Response Streaming**: Real-time streaming of search results
    * **Progress Indicators**: Upload and processing progress tracking
    * **Vector Index Optimization**: 40% faster similarity search
    * **Memory Usage**: Reduced memory footprint for large indices
  </Card>
</CardGroup>

***

## March 2025

### Version 2.8.8 - March 29, 2025

<CardGroup cols={1}>
  <Card title="🔍 Query & Monitoring">
    * **Query Normalization**: Better handling of diverse query formats
    * **Spell Correction**: Automatic correction of typos in search queries
    * **Detailed Logging**: Enhanced logging for debugging and optimization
    * **Performance Metrics**: Real-time performance monitoring dashboard
  </Card>
</CardGroup>

***

### Version 2.8.7 - March 22, 2025

<CardGroup cols={1}>
  <Card title="🛡️ Security & Quality">
    * **API Key Rotation**: Support for seamless API key rotation
    * **Request Validation**: Enhanced input validation and sanitization
    * **Duplicate Filtering**: Automatic removal of near-duplicate results
    * **Content Freshness**: Preference scoring for recently updated content
  </Card>
</CardGroup>

***

### Version 2.8.6 - March 15, 2025

<CardGroup cols={1}>
  <Card title="⚡ Speed & Developer Tools">
    * **Cache Optimization**: Smarter caching strategies for frequent queries
    * **Index Compression**: Reduced index size with maintained accuracy
    * **Debug Mode**: Detailed query execution information for troubleshooting
    * **API Testing**: Built-in API testing interface for development
  </Card>
</CardGroup>

***

### Version 2.8.5 - March 8, 2025

<CardGroup cols={1}>
  <Card title="📈 Scaling & Answer Generation">
    * **Connection Pooling**: Optimized database connection management
    * **Resource Allocation**: Dynamic resource allocation based on workload
    * **Response Formatting**: Better structured responses with bullet points
    * **Context Preservation**: Improved context retention in longer conversations
  </Card>
</CardGroup>

***

### Version 2.8.4 - March 1, 2025

<CardGroup cols={1}>
  <Card title="🔍 Search & AI Improvements">
    * **Faceted Search**: Multi-dimensional filtering capabilities
    * **Search History**: Track and reuse previous successful searches
    * **Model Updates**: Updated to latest embedding models for better accuracy
    * **Fine-tuning**: Domain-specific fine-tuning for technical content
  </Card>
</CardGroup>

***

## February 2025

### Version 2.2.0 - February 28, 2025

<CardGroup cols={1}>
  <Card title="🎯 New Features">
    * **Advanced Analytics Dashboard**: Real-time insights into query patterns and user behavior
    * **Custom Model Support**: Integration with custom fine-tuned models for specialized domains
    * **Workflow Automation**: Automated content processing pipelines with custom triggers
    * **Vector Similarity Tuning**: Fine-grained control over similarity thresholds and scoring algorithms
    * **Multi-Modal Search**: Support for image, audio, and video embeddings alongside text
    * **Federated Search**: Query across multiple vector databases simultaneously
    * **Creative Search Mode**: Generate creative and imaginative answers beyond factual content
    * **Web Search Integration**: Real-time web search capabilities with `search_modes` configuration
  </Card>
</CardGroup>

<CardGroup cols={1}>
  <Card title="⚡ Performance & Scale">
    * **Lightning-fast Indexing**: 60% improvement in document processing speed with parallel processing
    * **Smart Caching**: Intelligent cache invalidation reduces API response times by 75%
    * **Optimized Memory Usage**: Reduced memory footprint for large-scale deployments
    * **Auto-scaling Infrastructure**: Dynamic scaling based on query load and index size
    * **Distributed Vector Storage**: Sharded vector indices for billions of embeddings
    * **Query Optimization**: Advanced query planning and execution for complex searches
  </Card>
</CardGroup>

<CardGroup cols={1}>
  <Card title="🛡️ Quality of Service">
    * **Enterprise-grade Reliability**: Automatic failover and high availability
    * **Real-time Health Monitoring**: Comprehensive metrics and alerting system
    * **Circuit Breaker Pattern**: Automatic degradation and recovery mechanisms
    * **Load Balancing**: Intelligent request distribution across multiple regions
    * **Data Consistency**: Strong consistency with eventual consistency options
  </Card>
</CardGroup>

***

### Version 2.1.5 - February 14, 2025

<CardGroup cols={1}>
  <Card title="💝 Valentine's Update">
    * **Enhanced User Experience**: Streamlined onboarding flow for new developers
    * **API Rate Limiting**: Flexible rate limiting with burst allowances
    * **Multi-language Support**: Expanded language detection and processing capabilities
    * **Approximate Nearest Neighbor (ANN)**: HNSW algorithm implementation for faster similarity search
    * **Vector Compression**: Quantization techniques reducing storage by 70% with minimal accuracy loss
    * **Batch Query Processing**: Execute up to 1000 queries in a single API call
    * **Streaming Responses**: Real-time streaming of answers with `stream` flag for better UX
    * **Auto Agent Routing**: Intelligent routing to best-suited AI agents with `auto_agent_routing`
  </Card>
</CardGroup>

<CardGroup cols={1}>
  <Card title="🔍 Search Enhancements">
    * **Hybrid Search**: Combine dense vector search with sparse keyword matching using `search_alpha`
    * **Semantic Filtering**: Filter results based on semantic similarity before ranking
    * **Query Expansion**: Automatic query enhancement using related terms and concepts
    * **Result Diversification**: Ensure diverse results to avoid echo chambers
    * **Recency Bias Control**: Fine-tune preference for recent content with `recency_bias` parameter
    * **Context-Aware Search**: Restrict search to specific documents using `context_list`
  </Card>
</CardGroup>

***

### Version 2.1.2 - February 7, 2025

<CardGroup cols={1}>
  <Card title="🔧 Maintenance Release">
    * **Security Patches**: Updated dependencies and security improvements
    * **Error Handling**: Better error messages with actionable suggestions
    * **Documentation Updates**: Enhanced code examples and integration guides
    * **Index Optimization**: Automatic background index compaction and cleanup
    * **Memory Leak Fixes**: Resolved memory leaks in long-running search operations
    * **Connection Pooling**: Improved database connection management for high-throughput scenarios
  </Card>
</CardGroup>

<CardGroup cols={1}>
  <Card title="📊 Scalability Improvements">
    * **Horizontal Partitioning**: Distribute large indices across multiple nodes
    * **Read Replicas**: Support for read-only replicas to handle increased query load
    * **Asynchronous Indexing**: Non-blocking index updates for better write performance
    * **Resource Throttling**: Intelligent resource allocation based on workload patterns
  </Card>
</CardGroup>

***

## January 2025

### Version 2.1.0 - January 23, 2025

<CardGroup cols={1}>
  <Card title="🚀 New Features">
    * **Enhanced User Memory System**: Added `generate-user-memory` endpoint for automatic memory generation
    * **Improved Batch Upload**: New batch processing capabilities with better error handling
    * **App Integration**: Native support for app-specific data sources with `app-upload` endpoint
    * **Vector Index Versioning**: Maintain multiple versions of indices for A/B testing
    * **Real-time Streaming Search**: WebSocket-based streaming search results
    * **Custom Distance Metrics**: Support for cosine, euclidean, dot product, and custom similarity functions
    * **Multi-Step Reasoning Engine**: Break down complex queries with `multi_step_reasoning` flag
    * **Source Highlighting**: Precise content location with `highlight_chunks` and layout coordinates
    * **User Personalization**: Custom user instructions and personalized responses with `user_name`
  </Card>
</CardGroup>

<CardGroup cols={1}>
  <Card title="⚡ Performance & Scale">
    * **Query Performance**: 40% faster response times for search and QnA endpoints
    * **Memory Retrieval**: Enhanced personalization with improved ranking algorithms
    * **API Documentation**: Complete overhaul of API reference with interactive examples
    * **Massive Scale Support**: Handle up to 100M+ vectors with sub-100ms query latency
    * **GPU Acceleration**: CUDA-optimized vector operations for 10x faster indexing
    * **Adaptive Indexing**: Dynamic index structure optimization based on query patterns
  </Card>
</CardGroup>

<CardGroup cols={1}>
  <Card title="🔧 Quality & Reliability">
    * Fixed memory deletion edge cases in multi-tenant environments
    * Resolved webpage scraping timeout issues for large documents
    * Improved error handling for malformed document uploads
    * **Data Validation**: Comprehensive input validation and sanitization
    * **Backup & Recovery**: Automated incremental backups with point-in-time recovery
    * **Monitoring & Alerting**: Proactive issue detection with detailed performance metrics
  </Card>
</CardGroup>

***

### Version 2.0.5 - January 18, 2025

<CardGroup cols={1}>
  <Card title="🔧 Updates">
    * **Text Upload Optimization**: Renamed and optimized markdown upload to text upload for better clarity
    * **Search Endpoint Enhancement**: Improved search relevance scoring with machine learning models
    * **Documentation Updates**: Enhanced use cases and implementation guides
    * **Vector Quantization**: Product quantization for 8x storage reduction
    * **Hot/Cold Storage**: Automatic tiering of frequently vs rarely accessed vectors
    * **Query Result Caching**: Redis-based caching for frequently requested searches
    * **AI Generation Control**: Toggle AI-powered responses with `ai_generation` flag
    * **Metadata Filtering**: Advanced document filtering using `source_title` and `source_type`
  </Card>
</CardGroup>

<CardGroup cols={1}>
  <Card title="🎯 Search Quality">
    * **Precision Tuning**: Fine-tuned retrieval models for domain-specific content
    * **Recall Optimization**: Improved coverage for long-tail and niche queries
    * **Relevance Scoring**: Advanced BM25 + vector hybrid scoring algorithms
    * **Query Understanding**: Better handling of ambiguous and multi-intent queries
    * **Result Count Control**: Configurable result limits with `top_n` and `max_chunks` parameters
  </Card>
</CardGroup>

***

## January 2025

### Version 2.0.0 - January 9, 2025

<CardGroup cols={1}>
  <Card title="🎉 Major Release">
    * **Multi-Step Reasoning**: Revolutionary multi-step query processing for complex questions
    * **Self-Improving System**: Automatic learning from user interactions and feedback
    * **Advanced Personalization**: Deep user profiling with preference learning
    * **Web Search Integration**: Real-time web search capabilities for up-to-date information
    * **Enterprise Vector Database**: Full-featured vector database with advanced transaction support
    * **Multi-Region Deployment**: Global deployment with automatic geo-routing
  </Card>
</CardGroup>

<CardGroup cols={1}>
  <Card title="🚀 Scale & Performance">
    * **Petabyte Scale**: Support for petabyte-scale vector collections
    * **Million QPS**: Handle millions of queries per second with linear scaling
    * **Sub-millisecond Latency**: P99 latency under 5ms for most queries
    * **Zero-Downtime Updates**: Live index updates without service interruption
    * **Automatic Sharding**: Intelligent data distribution across clusters
  </Card>
</CardGroup>

<CardGroup cols={1}>
  <Card title="🔄 Breaking Changes">
    * Updated API versioning scheme (v1 → v2)
    * Modified response format for search endpoints
    * Renamed several endpoint parameters for consistency
    * **High Availability**: 99.95% uptime with automated monitoring
  </Card>
</CardGroup>

***

## December 2024

### Version 1.8.0 - December 31, 2024

<CardGroup cols={1}>
  <Card title="✨ New Features">
    * **Custom Metadata Support**: Rich metadata tagging with `tenant_metadata` and `document_metadata`
    * **Multi-Tenant Architecture**: Complete isolation with `tenant_id` and `sub_tenant_id` support
    * **Advanced Filtering**: Powerful filtering options for knowledge retrieval
    * **Batch Document Processing**: Upload multiple documents with `batch_upload` endpoint
    * **Session Management**: Conversation tracking and context continuity with `session_id`
    * **Vector Similarity Search**: Advanced ANN algorithms (HNSW, IVF, LSH)
    * **Incremental Index Updates**: Update vectors without full reindexing
    * **Distributed Computing**: Spark integration for large-scale batch operations
  </Card>
</CardGroup>

<CardGroup cols={1}>
  <Card title="📈 Enterprise Scale">
    * **High Availability**: Multi-master setup with automatic failover
    * **Disaster Recovery**: Cross-region replication with RPO \< 1 minute
    * **Security Compliance**: SOC2, GDPR, HIPAA compliance certifications
    * **Audit Logging**: Comprehensive audit trails for all operations
  </Card>
</CardGroup>

***

### Version 1.7.2 - December 17, 2024

<CardGroup cols={1}>
  <Card title="🛡️ Security & Performance">
    * Enhanced security protocols for API authentication
    * Improved rate limiting and request validation
    * Optimized vector indexing for faster retrieval
    * **End-to-End Encryption**: AES-256 encryption for vectors at rest and in transit
    * **Performance Monitoring**: Real-time performance dashboards and SLI tracking
    * **Cost Optimization**: Intelligent resource allocation reducing costs by 35%
  </Card>
</CardGroup>

<CardGroup cols={1}>
  <Card title="🔍 Advanced Search">
    * **Semantic Search Refinement**: Improved understanding of user intent
    * **Faceted Search**: Multi-dimensional filtering and faceting capabilities
    * **Search Analytics**: Detailed query performance and result quality metrics
    * **Fuzzy Matching**: Typo-tolerant search with configurable edit distance
  </Card>
</CardGroup>

***

## November 2024

### Version 1.7.0 - November 28, 2024

<CardGroup cols={1}>
  <Card title="🔍 Search & Memory">
    * **Contextual Answers**: AI-powered answers with source attribution
    * **Memory Continuity**: Persistent memory across user sessions
    * **Document Processing**: Enhanced support for multiple file formats
  </Card>
</CardGroup>

***

## October 2024

### Version 1.6.0 - October 25, 2024

<CardGroup cols={1}>
  <Card title="🚀 Platform Launch">
    * **Initial Public Release**: Cortex SDK goes live with core functionality
    * **Knowledge Ingestion**: Document upload and webpage scraping
    * **Query & Retrieval**: Semantic search and question-answering
    * **User Memory System**: Basic user memory management
    * **API Documentation**: Comprehensive developer documentation
  </Card>
</CardGroup>

***

## Stay Updated

<CardGroup cols={2}>
  <Card title="Get Support" href="mailto:founders@usecortex.ai">
    Have questions about an update? Reach out to our team for help.
  </Card>

  <Card title="Feature Requests" href="mailto:founders@usecortex.ai?subject=Feature%20Request">
    Share your ideas for new features and improvements.
  </Card>
</CardGroup>

<Note>
  **Migration Guide**: When updating to a new major version, check our migration guides in the documentation to ensure smooth transitions.
</Note>

<Tip>
  **Stay Informed**: Subscribe to our updates by contacting our team to be notified of new releases and important changes.
</Tip>