MPCoreDeveloper · MPCoreDeveloper · Sep 4, 2026 · Sep 4, 2026
diff --git a/README.md b/README.md
@@ -33,6 +33,19 @@ Use it when you need:
 > than SQLite** on `GROUP BY` SUM, and the engine is **Native AOT-ready**. Full results:
 > [docs/manual/performance.md](docs/manual/performance.md).
 
+> **Latest release: 2.0.0.2 (2026-09-04)** — the 2.x engine line: fixed-width record layout is the
+> default for new PK tables, UPDATE/DELETE run in-place with commit-time tombstones, and a reopen
+> data-integrity hardening batch closed silent-data-loss edge cases (empty-value overflow reload,
+> single-file fixed-width arena markers, legacy 1.x delete-after-update purge).
+>
+> **Performance (fair-PK, median-of-3, tuned harness):** UPDATE **~163–245K ops/s**, DELETE
+> **~106–172K ops/s**, INSERT **~125–152K ops/s**, READ **~72–110K ops/s** (SQLite reference:
+> UPDATE ~270–315K, DELETE ~353–420K, INSERT ~186–190K). Honest default-config caveat: the pure
+> default config runs ~1.3–1.6x slower because the file-level wrapper still pays AES work while
+> per-record at-rest encryption is off (`NoEncryptMode` root cause, P3d). Full report:
+> [`docs/2.0.0.2_WHAT_CHANGED.md`](docs/2.0.0.2_WHAT_CHANGED.md) and
+> [`docs/benchmarks/default-config-pk.md`](docs/benchmarks/default-config-pk.md).
+
 > Full documentation: **`docs/INDEX.md`** · Manual: **`docs/manual/README.md`** · Performance: **`docs/manual/performance.md`**
 
 ---
@@ -106,7 +119,7 @@ Track the v2.x plan: **[`docs/performance/V2_PERFORMANCE_PLAN.md`](docs/performa
 ### 1) Embedded mode
 
 ```bash
-dotnet add package SharpCoreDB --version 2.0.0
+dotnet add package SharpCoreDB --version 2.0.0.2
 ```
 
 ```csharp
@@ -143,8 +156,8 @@ gRPC endpoint: `https://localhost:5001`
 Install client/server packages:
 
 ```bash
-dotnet add package SharpCoreDB.Server --version 2.0.0
-dotnet add package SharpCoreDB.Client --version 2.0.0
+dotnet add package SharpCoreDB.Server --version 2.0.0.2
+dotnet add package SharpCoreDB.Client --version 2.0.0.2
 ```
 
 
@@ -160,36 +173,36 @@ dotnet add package SharpCoreDB.Client --version 2.0.0
 
 ---
 
-## Available NuGet packages (v2.0.0)
+## Available NuGet packages (v2.0.0.2)
 
 ```bash
 # Core
-dotnet add package SharpCoreDB --version 2.0.0
+dotnet add package SharpCoreDB --version 2.0.0.2
 
 # Server/client
-dotnet add package SharpCoreDB.Server --version 2.0.0
-dotnet add package SharpCoreDB.Client --version 2.0.0
+dotnet add package SharpCoreDB.Server --version 2.0.0.2
+dotnet add package SharpCoreDB.Client --version 2.0.0.2
 
 # Engines and extensions
-dotnet add package SharpCoreDB.Analytics --version 2.0.0
-dotnet add package SharpCoreDB.VectorSearch --version 2.0.0
-dotnet add package SharpCoreDB.Graph --version 2.0.0
-dotnet add package SharpCoreDB.Graph.Advanced --version 2.0.0
-dotnet add package SharpCoreDB.Distributed --version 2.0.0
-dotnet add package SharpCoreDB.Provider.Sync --version 2.0.0
-dotnet add package SharpCoreDB.EntityFrameworkCore --version 2.0.0
-dotnet add package SharpCoreDB.Extensions --version 2.0.0
+dotnet add package SharpCoreDB.Analytics --version 2.0.0.2
+dotnet add package SharpCoreDB.VectorSearch --version 2.0.0.2
+dotnet add package SharpCoreDB.Graph --version 2.0.0.2
+dotnet add package SharpCoreDB.Graph.Advanced --version 2.0.0.2
+dotnet add package SharpCoreDB.Distributed --version 2.0.0.2
+dotnet add package SharpCoreDB.Provider.Sync --version 2.0.0.2
+dotnet add package SharpCoreDB.EntityFrameworkCore --version 2.0.0.2
+dotnet add package SharpCoreDB.Extensions --version 2.0.0.2
 
 # Optional architecture packages
-dotnet add package SharpCoreDB.EventSourcing --version 2.0.0
-dotnet add package SharpCoreDB.Projections --version 2.0.0
-dotnet add package SharpCoreDB.CQRS --version 2.0.0
+dotnet add package SharpCoreDB.EventSourcing --version 2.0.0.2
+dotnet add package SharpCoreDB.Projections --version 2.0.0.2
+dotnet add package SharpCoreDB.CQRS --version 2.0.0.2
 
 # Optional functional adapters
-dotnet add package SharpCoreDB.Functional --version 2.0.0
-dotnet add package SharpCoreDB.Functional.Dapper --version 2.0.0
-dotnet add package SharpCoreDB.Functional.EntityFrameworkCore --version 2.0.0
-dotnet add package SharpCoreDB.Functional.Linq2DB --version 2.0.0
+dotnet add package SharpCoreDB.Functional --version 2.0.0.2
+dotnet add package SharpCoreDB.Functional.Dapper --version 2.0.0.2
+dotnet add package SharpCoreDB.Functional.EntityFrameworkCore --version 2.0.0.2
+dotnet add package SharpCoreDB.Functional.Linq2DB --version 2.0.0.2
 ```
 
 ---

diff --git a/src/SharpCoreDB.Analytics/NuGet.README.md b/src/SharpCoreDB.Analytics/NuGet.README.md
@@ -3,7 +3,7 @@
 This package is part of SharpCoreDB, a high-performance embedded database for .NET 10.
 
 
-## Patch updates in v1.9.5
+## Patch updates in v1.9.5 (archived; current release 2.0.0.2)
 
 - ✅ **Parameterized query binding fixed** (Issue #336): named-parameter binding is token-aware, so parameter names that are prefixes of others (e.g. `@t` vs `@tid`) no longer corrupt the SQL.
 - ✅ **Server parameter pass-through fixed** (Issue #337): `request.Parameters` are forwarded on gRPC, the binary (PostgreSQL) protocol and WebSocket.
@@ -16,13 +16,13 @@ For full documentation, see: https://github.com/MPCoreDeveloper/SharpCoreDB/blob
 
 See the main repository for usage examples.
 
-# SharpCoreDB.Analytics v1.9.5
+# SharpCoreDB.Analytics v2.0.0.2
 
 **Advanced Analytics Engine for SharpCoreDB**
 
 Unlock enterprise-grade analytics with 100+ aggregate functions, window functions, and statistical analysis tools - **150-680x faster than SQLite**.
 
-## ✨ What's New in v1.9.5
+## ✨ What's New in v1.9.5 (archived; current release 2.0.0.2)
 
 - ✅ Inherits metadata improvements from SharpCoreDB v1.9.5
 - ✅ Phase 9 complete: 100+ aggregate and window functions

diff --git a/src/SharpCoreDB.Analytics/SharpCoreDB.Analytics.csproj b/src/SharpCoreDB.Analytics/SharpCoreDB.Analytics.csproj
@@ -13,7 +13,7 @@
     <Product>SharpCoreDB.Analytics</Product>
     <Description>Analytics extensions for SharpCoreDB: aggregates, window functions, SIMD-accelerated analytics, and time-series helpers for .NET 10.</Description>
     <Copyright>Copyright (c) 2026 MPCoreDeveloper</Copyright>
-    <PackageReleaseNotes>v1.9.6: Fixes the critical WHERE IN (...) regression (#339) that silently returned ALL rows: IN / NOT IN are now evaluated correctly for literal and parameterized lists across single-file and directory mode, and single-file parameterized queries normalize @-prefixed parameter names. Includes all v1.9.5 fixes (token-aware parameter binding resolving @t/@tid collisions, server parameter pass-through, standards-compliant ULID encoding, legacy UI removal, English-only documentation, updated dependencies).</PackageReleaseNotes>
+    <PackageReleaseNotes>v2.0.0.2 (2026-09-04): 2.x performance-first engine line - fixed-width record default for new PK tables, in-place UPDATE/DELETE with commit-time tombstones, and reopen data-integrity hardening (empty-value overflow reload, single-file fixed-width arena markers, legacy delete purge). Full details: https://github.com/MPCoreDeveloper/SharpCoreDB/blob/master/docs/CHANGELOG.md</PackageReleaseNotes>
     <PackageTags>analytics;aggregates;window-functions;statistics;timeseries;database;sharpcoredb;net10;csharp14</PackageTags>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
     <PackageProjectUrl>https://github.com/MPCoreDeveloper/SharpCoreDB</PackageProjectUrl>

diff --git a/src/SharpCoreDB.CQRS/NuGet.README.md b/src/SharpCoreDB.CQRS/NuGet.README.md
@@ -1,9 +1,9 @@
-# SharpCoreDB.CQRS v1.9.5
+# SharpCoreDB.CQRS v2.0.0.2
 
 CQRS and outbox primitives for `SharpCoreDB`.
 
 
-## Patch updates in v1.9.5
+## Patch updates in v1.9.5 (archived; current release 2.0.0.2)
 
 - ✅ **Parameterized query binding fixed** (Issue #336): named-parameter binding is token-aware, so parameter names that are prefixes of others (e.g. `@t` vs `@tid`) no longer corrupt the SQL.
 - ✅ **Server parameter pass-through fixed** (Issue #337): `request.Parameters` are forwarded on gRPC, the binary (PostgreSQL) protocol and WebSocket.

diff --git a/src/SharpCoreDB.CQRS/SharpCoreDB.CQRS.csproj b/src/SharpCoreDB.CQRS/SharpCoreDB.CQRS.csproj
@@ -24,7 +24,7 @@
     <RepositoryType>git</RepositoryType>
     <PackageIcon>SharpCoreDB.jpg</PackageIcon>
     <PackageReadmeFile>NuGet.README.md</PackageReadmeFile>
-    <PackageReleaseNotes>v1.9.6: Fixes the critical WHERE IN (...) regression (#339) that silently returned ALL rows: IN / NOT IN are now evaluated correctly for literal and parameterized lists across single-file and directory mode, and single-file parameterized queries normalize @-prefixed parameter names. Includes all v1.9.5 fixes (token-aware parameter binding resolving @t/@tid collisions, server parameter pass-through, standards-compliant ULID encoding, legacy UI removal, English-only documentation, updated dependencies).</PackageReleaseNotes>
+    <PackageReleaseNotes>v2.0.0.2 (2026-09-04): 2.x performance-first engine line - fixed-width record default for new PK tables, in-place UPDATE/DELETE with commit-time tombstones, and reopen data-integrity hardening (empty-value overflow reload, single-file fixed-width arena markers, legacy delete purge). Full details: https://github.com/MPCoreDeveloper/SharpCoreDB/blob/master/docs/CHANGELOG.md</PackageReleaseNotes>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/src/SharpCoreDB.Client.Protocol/SharpCoreDB.Client.Protocol.csproj b/src/SharpCoreDB.Client.Protocol/SharpCoreDB.Client.Protocol.csproj
@@ -26,7 +26,7 @@
     <PackageIcon>SharpCoreDB.jpg</PackageIcon>
     <IncludeSymbols>true</IncludeSymbols>
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
-    <PackageReleaseNotes>v1.9.6: Fixes the critical WHERE IN (...) regression (#339) that silently returned ALL rows: IN / NOT IN are now evaluated correctly for literal and parameterized lists across single-file and directory mode, and single-file parameterized queries normalize @-prefixed parameter names. Includes all v1.9.5 fixes (token-aware parameter binding resolving @t/@tid collisions, server parameter pass-through, standards-compliant ULID encoding, legacy UI removal, English-only documentation, updated dependencies).</PackageReleaseNotes>
+    <PackageReleaseNotes>v2.0.0.2 (2026-09-04): 2.x performance-first engine line - fixed-width record default for new PK tables, in-place UPDATE/DELETE with commit-time tombstones, and reopen data-integrity hardening (empty-value overflow reload, single-file fixed-width arena markers, legacy delete purge). Full details: https://github.com/MPCoreDeveloper/SharpCoreDB/blob/master/docs/CHANGELOG.md</PackageReleaseNotes>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/src/SharpCoreDB.Client/NuGet.README.md b/src/SharpCoreDB.Client/NuGet.README.md
@@ -1,9 +1,9 @@
-# SharpCoreDB.Client v1.9.5
+# SharpCoreDB.Client v2.0.0.2
 
 .NET client library for `SharpCoreDB.Server`.
 
 
-## Patch updates in v1.9.5
+## Patch updates in v1.9.5 (archived; current release 2.0.0.2)
 
 - ✅ **Parameterized query binding fixed** (Issue #336): named-parameter binding is token-aware, so parameter names that are prefixes of others (e.g. `@t` vs `@tid`) no longer corrupt the SQL.
 - ✅ **Server parameter pass-through fixed** (Issue #337): `request.Parameters` are forwarded on gRPC, the binary (PostgreSQL) protocol and WebSocket.

diff --git a/src/SharpCoreDB.Data.Provider/NuGet.README.md b/src/SharpCoreDB.Data.Provider/NuGet.README.md
@@ -1,11 +1,11 @@
-# SharpCoreDB.Data.Provider v1.9.5
+# SharpCoreDB.Data.Provider v2.0.0.2
 
 **ADO.NET Data Provider for SharpCoreDB**
 
 Complete ADO.NET provider enabling standard database connectivity patterns with SharpCoreDB's encryption and performance.
 
 
-## Patch updates in v1.9.5
+## Patch updates in v1.9.5 (archived; current release 2.0.0.2)
 
 - ✅ **Parameterized query binding fixed** (Issue #336): named-parameter binding is token-aware, so parameter names that are prefixes of others (e.g. `@t` vs `@tid`) no longer corrupt the SQL.
 - ✅ **Server parameter pass-through fixed** (Issue #337): `request.Parameters` are forwarded on gRPC, the binary (PostgreSQL) protocol and WebSocket.

diff --git a/src/SharpCoreDB.Data.Provider/SharpCoreDB.Data.Provider.csproj b/src/SharpCoreDB.Data.Provider/SharpCoreDB.Data.Provider.csproj
@@ -24,7 +24,7 @@
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
     <PackageId>SharpCoreDB.Data.Provider</PackageId>
     <Description>Data provider layer for SharpCoreDB on .NET 10.</Description>
-    <PackageReleaseNotes>v1.9.6: Fixes the critical WHERE IN (...) regression (#339) that silently returned ALL rows: IN / NOT IN are now evaluated correctly for literal and parameterized lists across single-file and directory mode, and single-file parameterized queries normalize @-prefixed parameter names. Includes all v1.9.5 fixes (token-aware parameter binding resolving @t/@tid collisions, server parameter pass-through, standards-compliant ULID encoding, legacy UI removal, English-only documentation, updated dependencies).</PackageReleaseNotes>
+    <PackageReleaseNotes>v2.0.0.2 (2026-09-04): 2.x performance-first engine line - fixed-width record default for new PK tables, in-place UPDATE/DELETE with commit-time tombstones, and reopen data-integrity hardening (empty-value overflow reload, single-file fixed-width arena markers, legacy delete purge). Full details: https://github.com/MPCoreDeveloper/SharpCoreDB/blob/master/docs/CHANGELOG.md</PackageReleaseNotes>
 
     <!-- Visual Studio: Enable "Pack" command to create multi-RID package -->
     <GeneratePackageOnBuild>false</GeneratePackageOnBuild>

diff --git a/src/SharpCoreDB.Distributed/NuGet.README.md b/src/SharpCoreDB.Distributed/NuGet.README.md
@@ -6,7 +6,7 @@
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 
 
-## Patch updates in v1.9.5
+## Patch updates in v1.9.5 (archived; current release 2.0.0.2)
 
 - ✅ **Parameterized query binding fixed** (Issue #336): named-parameter binding is token-aware, so parameter names that are prefixes of others (e.g. `@t` vs `@tid`) no longer corrupt the SQL.
 - ✅ **Server parameter pass-through fixed** (Issue #337): `request.Parameters` are forwarded on gRPC, the binary (PostgreSQL) protocol and WebSocket.
@@ -121,13 +121,13 @@ await distributedDb.ExecuteAsync(
 
 MIT License - see [LICENSE](https://github.com/MPCoreDeveloper/SharpCoreDB/blob/master/LICENSE) for details.
 
-# SharpCoreDB.Distributed v1.9.5
+# SharpCoreDB.Distributed v2.0.0.2
 
 **Enterprise Distributed Database Features**
 
 Multi-master replication, distributed transactions, and automatic sharding - Phase 10 complete with sub-100ms replication latency.
 
-## ✨ What's New in v1.9.5
+## ✨ What's New in v1.9.5 (archived; current release 2.0.0.2)
 
 - ✅ Phase 10.2: Multi-master replication with vector clocks
 - ✅ Phase 10.3: Distributed transactions with 2PC protocol

diff --git a/src/SharpCoreDB.Distributed/SharpCoreDB.Distributed.csproj b/src/SharpCoreDB.Distributed/SharpCoreDB.Distributed.csproj
@@ -28,7 +28,7 @@
     <RepositoryType>git</RepositoryType>
     <PackageIcon>SharpCoreDB.jpg</PackageIcon>
     <PackageReadmeFile>NuGet.README.md</PackageReadmeFile>
-    <PackageReleaseNotes>v1.9.6: Fixes the critical WHERE IN (...) regression (#339) that silently returned ALL rows: IN / NOT IN are now evaluated correctly for literal and parameterized lists across single-file and directory mode, and single-file parameterized queries normalize @-prefixed parameter names. Includes all v1.9.5 fixes (token-aware parameter binding resolving @t/@tid collisions, server parameter pass-through, standards-compliant ULID encoding, legacy UI removal, English-only documentation, updated dependencies).</PackageReleaseNotes>
+    <PackageReleaseNotes>v2.0.0.2 (2026-09-04): 2.x performance-first engine line - fixed-width record default for new PK tables, in-place UPDATE/DELETE with commit-time tombstones, and reopen data-integrity hardening (empty-value overflow reload, single-file fixed-width arena markers, legacy delete purge). Full details: https://github.com/MPCoreDeveloper/SharpCoreDB/blob/master/docs/CHANGELOG.md</PackageReleaseNotes>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/src/SharpCoreDB.EntityFrameworkCore/NuGet.README.md b/src/SharpCoreDB.EntityFrameworkCore/NuGet.README.md
@@ -1,4 +1,4 @@
-# SharpCoreDB.EntityFrameworkCore v1.9.1
+# SharpCoreDB.EntityFrameworkCore v2.0.0.2
 
 **Entity Framework Core Provider for SharpCoreDB**
 
@@ -11,7 +11,7 @@ Full EF Core integration with SharpCoreDB's encryption and performance for moder
 - Root cause was missing Guid normalization during INSERT parameter binding (now aligned with DateTime handling).
 - The recommended pattern now works reliably with Guid primary keys and foreign keys.
 
-## Patch updates in v1.9.5
+## Patch updates in v1.9.5 (archived; current release 2.0.0.2)
 
 - ✅ Fixed EF Core materialization for aliased and quoted SELECT columns by normalizing DataReader column names and fallback value resolution.
 - ✅ Added targeted regression tests for aliased and qualified column lookup behavior.

diff --git a/src/SharpCoreDB.EntityFrameworkCore/SharpCoreDB.EntityFrameworkCore.csproj b/src/SharpCoreDB.EntityFrameworkCore/SharpCoreDB.EntityFrameworkCore.csproj
@@ -14,7 +14,7 @@
     <Product>SharpCoreDB.EntityFrameworkCore</Product>
     <Description>Entity Framework Core provider for SharpCoreDB encrypted database engine. Built for .NET 10 with C# 14. Supports Windows, Linux, macOS, Android, iOS, and IoT/embedded devices with platform-specific optimizations. Compatible with SharpCoreDB 1.7.1.</Description>
     <Copyright>Copyright (c) 2026 MPCoreDeveloper</Copyright>
-    <PackageReleaseNotes>v1.9.6: Fixes the critical WHERE IN (...) regression (#339) that silently returned ALL rows: IN / NOT IN are now evaluated correctly for literal and parameterized lists across single-file and directory mode, and single-file parameterized queries normalize @-prefixed parameter names. Includes all v1.9.5 fixes (token-aware parameter binding resolving @t/@tid collisions, server parameter pass-through, standards-compliant ULID encoding, legacy UI removal, English-only documentation, updated dependencies).</PackageReleaseNotes>
+    <PackageReleaseNotes>v2.0.0.2 (2026-09-04): 2.x performance-first engine line - fixed-width record default for new PK tables, in-place UPDATE/DELETE with commit-time tombstones, and reopen data-integrity hardening (empty-value overflow reload, single-file fixed-width arena markers, legacy delete purge). Full details: https://github.com/MPCoreDeveloper/SharpCoreDB/blob/master/docs/CHANGELOG.md</PackageReleaseNotes>
     <PackageTags>sharpcoredb;entityframeworkcore;efcore;database;encryption;net10;csharp14;android;ios;mobile;iot;arm64;x64</PackageTags>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
     <PackageProjectUrl>https://github.com/MPCoreDeveloper/SharpCoreDB</PackageProjectUrl>

diff --git a/src/SharpCoreDB.EventSourcing/NuGet.README.md b/src/SharpCoreDB.EventSourcing/NuGet.README.md
@@ -1,9 +1,9 @@
-# SharpCoreDB.EventSourcing v1.9.5
+# SharpCoreDB.EventSourcing v2.0.0.2
 
 Event store primitives for `SharpCoreDB`.
 
 
-## Patch updates in v1.9.5
+## Patch updates in v1.9.5 (archived; current release 2.0.0.2)
 
 - ✅ **Parameterized query binding fixed** (Issue #336): named-parameter binding is token-aware, so parameter names that are prefixes of others (e.g. `@t` vs `@tid`) no longer corrupt the SQL.
 - ✅ **Server parameter pass-through fixed** (Issue #337): `request.Parameters` are forwarded on gRPC, the binary (PostgreSQL) protocol and WebSocket.

diff --git a/src/SharpCoreDB.EventSourcing/SharpCoreDB.EventSourcing.csproj b/src/SharpCoreDB.EventSourcing/SharpCoreDB.EventSourcing.csproj
@@ -24,7 +24,7 @@
     <RepositoryType>git</RepositoryType>
     <PackageIcon>SharpCoreDB.jpg</PackageIcon>
     <PackageReadmeFile>NuGet.README.md</PackageReadmeFile>
-    <PackageReleaseNotes>v1.9.6: Fixes the critical WHERE IN (...) regression (#339) that silently returned ALL rows: IN / NOT IN are now evaluated correctly for literal and parameterized lists across single-file and directory mode, and single-file parameterized queries normalize @-prefixed parameter names. Includes all v1.9.5 fixes (token-aware parameter binding resolving @t/@tid collisions, server parameter pass-through, standards-compliant ULID encoding, legacy UI removal, English-only documentation, updated dependencies).</PackageReleaseNotes>
+    <PackageReleaseNotes>v2.0.0.2 (2026-09-04): 2.x performance-first engine line - fixed-width record default for new PK tables, in-place UPDATE/DELETE with commit-time tombstones, and reopen data-integrity hardening (empty-value overflow reload, single-file fixed-width arena markers, legacy delete purge). Full details: https://github.com/MPCoreDeveloper/SharpCoreDB/blob/master/docs/CHANGELOG.md</PackageReleaseNotes>
   </PropertyGroup>
 
   <ItemGroup>