docs: update server-mode messaging and standardize to v1.5.0

- clarify SharpCoreDB as embedded + network database
- add explicit server mode guidance in README
- add installer/deployment references (Windows/Linux/macOS/Docker)
- standardize documentation/version labels to v1.5.0
- rename v1.4.1-named docs to v1.5.0 equivalents

Author: MPCoreDeveloper

.github/CI_STATUS.md

@@ -75,42 +75,42 @@ After CI passes on master:
 
 ### 2. Publish to NuGet.org
 ```bash
-# Use the correct order (see docs/RELEASE_CHECKLIST_V1.4.1.md)
+# Use the correct order (see docs/RELEASE_CHECKLIST_v1.5.0.md)
 
 # Wave 1: Core
-dotnet nuget push "SharpCoreDB.1.4.1.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
+dotnet nuget push "SharpCoreDB.1.5.0.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
 
 # Wave 2: Direct dependencies (wait 60 seconds after Wave 1)
-dotnet nuget push "SharpCoreDB.Analytics.1.4.1.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
-dotnet nuget push "SharpCoreDB.Data.Provider.1.4.1.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
-dotnet nuget push "SharpCoreDB.Extensions.1.4.1.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
-dotnet nuget push "SharpCoreDB.Graph.1.4.1.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
-dotnet nuget push "SharpCoreDB.Distributed.1.4.1.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
-dotnet nuget push "SharpCoreDB.VectorSearch.1.4.1.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
-dotnet nuget push "SharpCoreDB.Serilog.Sinks.1.4.1.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
+dotnet nuget push "SharpCoreDB.Analytics.1.5.0.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
+dotnet nuget push "SharpCoreDB.Data.Provider.1.5.0.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
+dotnet nuget push "SharpCoreDB.Extensions.1.5.0.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
+dotnet nuget push "SharpCoreDB.Graph.1.5.0.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
+dotnet nuget push "SharpCoreDB.Distributed.1.5.0.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
+dotnet nuget push "SharpCoreDB.VectorSearch.1.5.0.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
+dotnet nuget push "SharpCoreDB.Serilog.Sinks.1.5.0.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
 
 # Wave 3: Multi-dependencies (wait 60 seconds after Wave 2)
-dotnet nuget push "SharpCoreDB.Provider.Sync.1.4.1.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
-dotnet nuget push "SharpCoreDB.Provider.YesSql.1.4.1.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
-dotnet nuget push "SharpCoreDB.EntityFrameworkCore.1.4.1.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
+dotnet nuget push "SharpCoreDB.Provider.Sync.1.5.0.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
+dotnet nuget push "SharpCoreDB.Provider.YesSql.1.5.0.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
+dotnet nuget push "SharpCoreDB.EntityFrameworkCore.1.5.0.nupkg" -k <api-key> -s https://api.nuget.org/v3/index.json
 ```
 
 ### 3. Create GitHub Release
 ```bash
-git tag v1.4.1
-git push origin v1.4.1
+git tag v1.5.0
+git push origin v1.5.0
 ```
 
 Then create release on GitHub with:
-- Tag: `v1.4.1`
-- Title: `SharpCoreDB v1.4.1 - Critical Bug Fixes & Metadata Compression`
-- Description: Link to `docs/PROGRESSION_V1.3.5_TO_V1.4.1.md`
+- Tag: `v1.5.0`
+- Title: `SharpCoreDB v1.5.0 - Critical Bug Fixes & Metadata Compression`
+- Description: Link to `docs/PROGRESSION_V1.3.5_TO_v1.5.0.md`
 
 ## 🔗 Related Documentation
 
-- [Release Checklist](../docs/RELEASE_CHECKLIST_V1.4.1.md)
-- [Version Update Summary](../docs/VERSION_UPDATE_SUMMARY_V1.4.1.md)
-- [Progression Report](../docs/PROGRESSION_V1.3.5_TO_V1.4.1.md)
+- [Release Checklist](../docs/RELEASE_CHECKLIST_v1.5.0.md)
+- [Version Update Summary](../docs/VERSION_UPDATE_SUMMARY_v1.5.0.md)
+- [Progression Report](../docs/PROGRESSION_V1.3.5_TO_v1.5.0.md)
 
 ## 🐛 Troubleshooting
 
@@ -123,11 +123,11 @@ Then create release on GitHub with:
 - Check test output in GitHub Actions artifacts
 
 ### Pack Failures
-- Ensure all dependencies are v1.4.1
+- Ensure all dependencies are v1.5.0
 - Check for missing NuGet.README.md files
 
 ---
 
 **Last Updated:** 2026-02-28  
-**Version:** 1.4.1  
+**Version:** 1.5.0  
 **Status:** ✅ Fully Operational with .NET 10 SDK

.github/copilot-instructions.md

@@ -5,6 +5,7 @@
 - All project documentation must be written in English. This includes docs, README files, technical specs, implementation plans, and code comments.
 - Provide periodic progress updates while work is ongoing to ensure the assistant is not stuck.
 - When benchmarking competitor databases (like BLite), document the developer experience (DX) honestly. If a library's API is hard to use, poorly documented, or has mismatches between docs and actual API, note that as a real finding in the benchmark report. User-friendliness and ease of integration matter as much as raw performance numbers.
+- Standardize all documentation/version labels to v1.5.0 ("V 1.50").
 
 ## Testing Policy
 - All test projects in SharpCoreDB must use **xUnit v3** (`xunit.v3` NuGet package, currently 3.2.2+). **Never** use `xunit` v2 (package id `xunit`). The old v2 package is incompatible with .NET 10 / C# 14.

README.md

@@ -3,23 +3,23 @@
 
   # SharpCoreDB
 
-  **High-Performance Embedded Database for .NET 10**
+  **High-Performance Embedded & Network Database for .NET 10**
 
   [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
   [![.NET](https://img.shields.io/badge/.NET-10.0-blue.svg)](https://dotnet.microsoft.com/download)
-  [![NuGet](https://img.shields.io/badge/NuGet-1.4.1-blue.svg)](https://www.nuget.org/packages/SharpCoreDB)
+  [![NuGet](https://img.shields.io/badge/NuGet-1.5.0-blue.svg)](https://www.nuget.org/packages/SharpCoreDB)
   [![Build](https://img.shields.io/badge/Build-✅_Passing-brightgreen.svg)](https://github.com/MPCoreDeveloper/SharpCoreDB)
-  [![Tests](https://img.shields.io/badge/Tests-1468+_Passing-brightgreen.svg)](https://github.com/MPCoreDeveloper/SharpCoreDB)
+  [![Tests](https://img.shields.io/badge/Tests-1490+_Passing-brightgreen.svg)](https://github.com/MPCoreDeveloper/SharpCoreDB)
   [![C#](https://img.shields.io/badge/C%23-14-purple.svg)](https://learn.microsoft.com/en-us/dotnet/csharp/)
 </div>
 
 ---
 
-## 📌 **Current Status — v1.4.1 (March 8, 2026)**
+## 📌 **Current Status — v1.5.0 (March 8, 2026)**
 
 ### ✅ **Production-Ready: ALL Phase 1-11 Features Complete (100%)**
 
-**SharpCoreDB v1.4.1 delivers critical bug fixes, 60-80% metadata compression, enterprise-scale distributed features, and a fully functional network database server.**
+**SharpCoreDB v1.5.0 delivers critical bug fixes, 60-80% metadata compression, enterprise-scale distributed features, and a fully functional network database server.**
 
 #### 🎉 **Major Milestone: All Core Features + Server Complete**
 
@@ -47,6 +47,11 @@ SharpCoreDB has been successfully transformed from embedded database into a **ne
 
 **See documentation:** `docs/INDEX.md`
 
+### ⚠️ Known Deferred Limitation
+
+- `SingleFileDatabase.ExecuteCompiled` with parameterized plans can still hang during disposal in specific shutdown paths.
+- Current status: mitigated with safer shutdown ordering; full resolution requires async disposal refactor (`IAsyncDisposable`) in single-file storage provider lifecycle.
+
 ### 📚 Documentation Policy
 
 - Canonical documentation entry points are `docs/INDEX.md` and `docs/README.md`.
@@ -59,7 +64,7 @@ SharpCoreDB has been successfully transformed from embedded database into a **ne
 
 ---
 
-#### 🎯 Latest Release (v1.4.0 → v1.4.1)
+#### 🎯 Latest Release (v1.4.0 → v1.5.0)
 
 - **🐛 Critical Bug Fixes**
   - Database reopen edge case fixed (graceful empty JSON handling)
@@ -72,7 +77,7 @@ SharpCoreDB has been successfully transformed from embedded database into a **ne
   - Zero breaking changes
 
 - **📊 Quality Metrics**
-  - **1,468+ tests** (was 850+ in v1.3.5)
+  - **1,490+ tests** (was 850+ in v1.3.5)
   - **100% backward compatible**
   - **All 11 phases production-ready**
 
@@ -129,29 +134,89 @@ SharpCoreDB has been successfully transformed from embedded database into a **ne
 #### 📦 Installation
 
 ```bash
-# Core database (v1.4.1 - NOW WITH METADATA COMPRESSION!)
-dotnet add package SharpCoreDB --version 1.4.1
+# Core database
+dotnet add package SharpCoreDB --version 1.5.0
 
-# Server mode (network database server with gRPC/HTTP/WebSocket)
-dotnet add package SharpCoreDB.Server --version 1.4.1
-dotnet add package SharpCoreDB.Client --version 1.4.1
+# Server mode (network database server)
+dotnet add package SharpCoreDB.Server --version 1.5.0
+dotnet add package SharpCoreDB.Client --version 1.5.0
 
-# Distributed features (multi-master replication, 2PC transactions)
-dotnet add package SharpCoreDB.Distributed --version 1.4.1
+# Distributed features
+dotnet add package SharpCoreDB.Distributed --version 1.5.0
 
-# Analytics engine (100+ aggregate & window functions)
-dotnet add package SharpCoreDB.Analytics --version 1.4.1
+# Analytics engine
+dotnet add package SharpCoreDB.Analytics --version 1.5.0
 
-# Vector search (HNSW indexing, semantic search)
-dotnet add package SharpCoreDB.VectorSearch --version 1.4.1
+# Vector search
+dotnet add package SharpCoreDB.VectorSearch --version 1.5.0
 
-# Sync integration (bidirectional sync with SQL Server/PostgreSQL/MySQL/SQLite)
-dotnet add package SharpCoreDB.Provider.Sync --version 1.4.1
+# Sync integration
+dotnet add package SharpCoreDB.Provider.Sync --version 1.5.0
 
-# Graph algorithms (A* pathfinding)
-dotnet add package SharpCoreDB.Graph --version 1.4.1
+# Graph algorithms
+dotnet add package SharpCoreDB.Graph --version 1.5.0
 
 # Optional integrations
-dotten
+dotnet add package SharpCoreDB.EntityFrameworkCore --version 1.5.0
+dotnet add package SharpCoreDB.Extensions --version 1.5.0
+```
+
+---
+
+## 🌐 Server Mode: Run SharpCoreDB as a Real Network Database Server
+
+SharpCoreDB is no longer only an embedded database. In `Server` mode it can run as a **real multi-database network server** with secure remote access over your LAN, datacenter, or cloud network.
+
+### What you get in Server mode
+
+- **Primary protocol: gRPC (HTTPS, HTTP/2 + HTTP/3)** for high-throughput and streaming scenarios
+- **Secondary protocols:** HTTPS REST API and WebSocket streaming
+- **Strict security defaults:** TLS 1.2+, JWT auth, optional mTLS, RBAC
+- **Multi-database hosting:** system databases + user databases in one server process
+- **Production operations:** health checks, metrics, connection pooling, graceful shutdown
+
+### Quick network setup
+
+1. Install packages:
+   - `SharpCoreDB.Server`
+   - `SharpCoreDB.Client`
+2. Configure TLS certificate and server settings in `appsettings.json`.
+3. Start the server:
+
+```bash
+dotnet run --project src/SharpCoreDB.Server -c Release
+```
+
+4. Verify endpoints:
+   - Health: `https://localhost:8443/health`
+   - gRPC endpoint: `https://localhost:5001`
+
+### Installers and deployment options
+
+- **Windows Service installer:** `installers/windows/install-service.ps1`
+- **Linux systemd installer:** `installers/linux/install.sh`
+- **macOS launchd installer:** `installers/macos/install.sh`
+- **Docker / Docker Compose:** `src/SharpCoreDB.Server/docker-compose.yml`
+
+### Server documentation
+
+- Quick start: `docs/server/QUICKSTART.md`
+- Installation and installers: `docs/server/INSTALLATION.md`
+- Configuration reference: `docs/server/CONFIGURATION_SCHEMA.md`
+- Security hardening: `docs/server/SECURITY.md`
+- Client usage: `docs/server/CLIENT_GUIDE.md`
+
+---
+
+## 📖 Documentation
+
+Start here:
+- `docs/INDEX.md`
+- `docs/README.md`
+
+Server-specific:
+- `docs/server/README.md`
+- `docs/server/QUICKSTART.md`
+- `docs/server/INSTALLATION.md`
 
 

docs/CHANGELOG.md

@@ -5,6 +5,19 @@ All notable changes to SharpCoreDB will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Fixed
+- Unified `IS NULL` / `IS NOT NULL` behavior across runtime scan, join-helper, and compiled predicate paths.
+- Added parser support for scalar function expressions in SELECT columns (including `COALESCE(...)`) and parenthesized subquery expressions.
+- Improved `EnhancedSqlParser` malformed SQL detection by flagging unparsed trailing content via `HasErrors`.
+- Added LINQ translator handling for `ExpressionType.Convert` / `ConvertChecked` in enum-related comparison scenarios.
+- Improved German locale comparison behavior for `ß/ss` equivalence in locale-aware matching.
+
+### Changed
+- Updated project documentation and status reports to reflect current implementation and validation baseline.
+- Explicitly documented the remaining deferred single-file parameterized `ExecuteCompiled` disposal deadlock path.
+
 ## [1.5.0] - 2026-03-30
 
 ### 🎉 Major Achievement - Phase 12: GraphRAG Enhancement & Vector Search Integration COMPLETE

docs/DOCUMENTATION_AUDIT_2026.md

@@ -1,7 +1,7 @@
 # SharpCoreDB Documentation Audit - January 2026
 
 **Audit Date:** January 28, 2026  
-**Version:** v1.4.1  
+**Version:** v1.5.0  
 **Total Documentation Files:** 116 markdown files  
 **Status:** Comprehensive cleanup required
 
@@ -241,8 +241,8 @@ docs/analytics/TUTORIAL.md → Keep as-is (excellent)
 docs/sync/README.md → Add "production ready" badge
 docs/Vectors/TECHNICAL_SPEC.md → Keep as API reference
 docs/migration/MIGRATION_GUIDE.md → Keep as-is
-src/SharpCoreDB.Analytics/README.md → Update version to 1.4.1
-src/SharpCoreDB.VectorSearch/README.md → Update version to 1.4.1
+src/SharpCoreDB.Analytics/README.md → Update version to 1.5.0
+src/SharpCoreDB.VectorSearch/README.md → Update version to 1.5.0
 src/SharpCoreDB.Graph/README.md → Add GraphRAG status section
 src/SharpCoreDB.Provider.Sync/README.md → Add production status
 ```
@@ -288,7 +288,7 @@ src/SharpCoreDB.Distributed/README.md
 
 4. **Up-to-Date Package READMEs**
    - All 10+ packages have accurate README.md
-   - Consistent versioning (v1.4.1)
+   - Consistent versioning (v1.5.0)
 
 5. **No Broken Links**
    - All internal links resolve correctly