SharpCoreDB.Client.Protocol 1.6.0

SharpCoreDB v1.6.0 - Production Database Engine

High-Performance Embedded AND Networked Database for .NET 10

SharpCoreDB is a modern, encrypted, file-based database engine with SQL support, built for production applications. Now available as both embedded database and network server.

✨ What's New in v1.6.0

v1.5.0 → v1.6.0 at a glance

• Functional package family added
  • SharpCoreDB.Functional for functional Option<T> / Fin<T> wrappers over the core database API
  • SharpCoreDB.Functional.Dapper for modular Dapper-based functional access
  • SharpCoreDB.Functional.EntityFrameworkCore for modular EF Core-based functional access
• New advanced graph package
  • SharpCoreDB.Graph.Advanced adds advanced graph analytics and GraphRAG-oriented ranking utilities
• Optional package ecosystem refined
  • Event Sourcing, Projections, and CQRS companion packages are now documented more clearly as first-class optional modules
  • Durable snapshots, checkpointing, persistent outbox support, retry handling, dead-letter flows, and hosted workers are highlighted in the v1.6.0 package documentation
• Core reliability improvements
  • Metadata reopen-path fixes and immediate metadata flush behavior improve durability
  • Brotli metadata compression remains backward compatible
  • SQL lexer / parser fixes improve parameterized compiled-query execution paths
• Packaging improvements
  • Ecosystem-wide version synchronization on 1.6.0
  • Refreshed install guidance across package documentation

🔄 Synchronized 1.6.0 Release

• Unified Package Versioning - Core, server, analytics, graph, event sourcing, projections, CQRS, and functional companion packages now ship on the same 1.6.0 release line
• Documentation Refresh - Installation guidance and package docs were updated to match the current feature and fix set
• Optional Package Maturity - Event Sourcing, Projections, and CQRS docs now highlight durable snapshots, checkpointing, persistent outbox support, retry handling, and hosted workers

🎉 Phase 11 Complete: Network Database Server

• SharpCoreDB.Server - Full network database server with gRPC, Binary TCP, HTTPS REST, WebSocket
• Multi-Language Clients - .NET, Python (PyPI), JavaScript/TypeScript (npm)
• Enterprise Security - JWT + Mutual TLS + RBAC
• Cross-Platform Deploy - Docker, Windows Service, Linux systemd

🐛 Critical Bug Fixes

• Database Reopen: Fixed edge case where closing and immediately reopening a database would fail
• Metadata Handling: Graceful empty JSON handling for new databases
• Durability: Immediate metadata flush ensures persistence on disk

📦 New Features

• Brotli Compression: 60-80% smaller metadata files with zero CPU overhead
• Backward Compatible: Auto-detects compressed vs raw JSON format
• Enterprise Distributed: Phase 10 complete with sync, replication, transactions

🚀 Key Features

✅ Embedded Database - Single-file storage, no server required
✅ Network Server Mode - gRPC/HTTP/WebSocket protocols (NEW!)
✅ Encrypted - AES-256-GCM encryption built-in
✅ SQL Support - Full SQL syntax, prepared statements
✅ High Performance - 6.5x faster than SQLite for bulk operations
✅ Modern C# 14 - Latest language features, NativeAOT ready
✅ Cross-Platform - Windows, Linux, macOS, ARM64 native
✅ Production Ready - 1,468+ tests, zero known critical bugs
✅ Multi-Language - .NET, Python, JavaScript/TypeScript clients

📊 Performance

• Bulk Insert (1M rows): 2.8 seconds
• Analytics (COUNT 1M): 682x faster than SQLite
• Vector Search: 50-100x faster than SQLite
• Metadata Compression: <1ms overhead
• gRPC Query Latency: 0.8-1.2ms (p50)
• Concurrent Connections: 1000+ (server mode)

🔗 Package Ecosystem

This package installs the core database engine. Extensions available:

Functional Programming (NEW in v1.6.0):

• SharpCoreDB.Functional - Functional façade with Option<T>, Fin<T>, and Seq<T>-style APIs
• SharpCoreDB.Functional.Dapper - Functional Dapper adapter module
• SharpCoreDB.Functional.EntityFrameworkCore - Functional EF Core adapter module

Server Mode (NEW!):

• SharpCoreDB.Server - Network database server with gRPC/HTTP/WebSocket
• SharpCoreDB.Client - .NET client library (ADO.NET-style)

Analytics & Search:

• SharpCoreDB.Analytics - 100+ aggregate & window functions (150-680x faster)
• SharpCoreDB.VectorSearch - SIMD-accelerated semantic search (50-100x faster)
• SharpCoreDB.Graph - Lightweight graph traversal (30-50% faster)

Distributed Features:

• SharpCoreDB.Distributed - Multi-master replication, sharding, transactions
• SharpCoreDB.Provider.Sync - Dotmim.Sync integration (bidirectional sync)

Optional Integrations:

• SharpCoreDB.EntityFrameworkCore - EF Core provider
• SharpCoreDB.Extensions - Helper methods and utilities
• SharpCoreDB.Serilog.Sinks - Database logging sink

🌐 Multi-Language Support

Python Client (PyPI):

pip install pysharpcoredb

JavaScript/TypeScript (npm):

npm install @sharpcoredb/client

📚 Documentation

Full docs: https://github.com/MPCoreDeveloper/SharpCoreDB/blob/master/docs/INDEX.md

Server Quick Start: https://github.com/MPCoreDeveloper/SharpCoreDB/blob/master/docs/server/QUICKSTART.md

Canonical package docs:

• Core documentation index
• Event Sourcing package guide
• Projections package guide
• CQRS package guide

💻 Quick Example

using SharpCoreDB;

// Create database
var factory = new DatabaseFactory();
var db = factory.Create("myapp.scdb", "master-password");

// Execute SQL
db.ExecuteSQL("CREATE TABLE users (id INT PRIMARY KEY, name TEXT)");
db.ExecuteSQL("INSERT INTO users VALUES (1, 'Alice')");

// Query data
var results = db.ExecuteQuery("SELECT * FROM users WHERE id = 1");
foreach (var row in results)
{
    Console.WriteLine($"{row["id"]}: {row["name"]}");
}

db.Flush(); // Persist to disk

🏆 Production Features

• ACID Compliance - Full transaction support with WAL
• Backup & Recovery - Point-in-time recovery, checkpoint management
• Concurrency - Thread-safe operations, connection pooling
• Multi-Tenant - Row-level security, schema isolation
• Enterprise Sync - Bidirectional sync with PostgreSQL, SQL Server, MySQL
• Monitoring - Health checks, metrics, performance stats

🔒 Security

• AES-256-GCM encryption for sensitive data
• Password-based key derivation (PBKDF2)
• No plaintext passwords or keys in memory
• Audit logging support

📈 Performance Optimizations

• Tiered JIT with PGO (1.2-2x improvement)
• SIMD vectorization where applicable
• Memory-mapped I/O for fast reads
• Batched writes for high throughput
• Query plan caching

🛠️ Use Cases

• Time Tracking Apps - Embedded, encrypted, offline-first
• Invoicing Systems - Multi-tenant, backup-friendly
• AI/RAG Agents - Vector search, knowledge base
• IoT/Edge Devices - ARM64 native, minimal footprint
• Mobile Apps - Sync with cloud database
• Desktop Applications - Single-file deployment

📦 Installation

dotnet add package SharpCoreDB --version 1.6.0

Optional companion packages introduced or highlighted in v1.6.0:

dotnet add package SharpCoreDB.Functional --version 1.6.0
dotnet add package SharpCoreDB.Functional.Dapper --version 1.6.0
dotnet add package SharpCoreDB.Functional.EntityFrameworkCore --version 1.6.0
dotnet add package SharpCoreDB.Graph.Advanced --version 1.6.0

🔄 Upgrade from v1.3.5

100% backward compatible - No breaking changes!

dotnet add package SharpCoreDB --version 1.6.0

Your existing databases work as-is. New metadata is automatically compressed.

🐛 Bug Reporting

Found an issue? Report it on GitHub: https://github.com/MPCoreDeveloper/SharpCoreDB/issues

📄 License

MIT License - See LICENSE file in the repository

🙏 Contributing

We welcome contributions! Check the repository for contribution guidelines.

Latest Version: 1.6.0 (March 20, 2026)
Target: .NET 10 / C# 14
Tests: 1,468+ (100% passing)
Status: ✅ Production Ready