Update documentation to clarify DriverInterface v4.0 compliance vs package version

Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

Author: Copilot

docs/LESSONS_LEARNED.md

@@ -5,6 +5,8 @@
 **Drivers Migrated**: 3 of 8 (SQL, Memory, MongoDB)  
 **Status**: 37.5% Complete, Ahead of Schedule  
 
+**Important Note on Versioning**: All driver packages remain at version 3.0.1 due to changeset fixed group constraints. The "v4.0" designation refers to DriverInterface specification compliance, not package version numbers.
+
 ---
 
 ## Executive Summary
@@ -244,13 +246,14 @@ For each driver, follow this sequence:
 - [ ] Add `convertFilterNodeToLegacy()` helper
 - [ ] Add `normalizeQuery()` helper (if needed)
 - [ ] Add Command and CommandResult interfaces
-- [ ] Update version to 4.0.0
 - [ ] Build and verify no TypeScript errors
 - [ ] Run existing tests (ensure backward compatibility)
 - [ ] Add new tests for executeQuery/executeCommand
 - [ ] Create or update MIGRATION.md
 - [ ] Update DRIVER_COMPLIANCE_MATRIX.md
 
+**Note**: Package version remains at 3.0.1 due to changeset fixed group.
+
 **Time per driver**: 6-8 hours (including testing and docs)
 
 ### 2. Testing Strategy

docs/implementation-roadmap.md

@@ -343,28 +343,30 @@ ObjectQL aims to be the **Standard Protocol for AI Software Generation** by prov
 **Completed Drivers**:
 
 1. ✅ **driver-sql** (Week 5 - Pilot)
-   - Version: 4.0.0
+   - Package Version: 3.0.1 (DriverInterface v4.0 compliant)
    - Status: Fully compliant with DriverInterface
    - Features: executeQuery(), executeCommand(), QueryAST support
    - Documentation: MIGRATION_V4.md created
    - Tests: All passing (85% coverage)
 
 2. ✅ **driver-memory** (Week 6)
-   - Version: 4.0.0
+   - Package Version: 3.0.1 (DriverInterface v4.0 compliant)
    - Status: Fully compliant with DriverInterface
    - Features: executeQuery(), executeCommand(), zero dependencies
    - Documentation: MIGRATION.md created (detailed guide)
    - Tests: All passing (75% coverage)
    - Highlights: Perfect for testing, prototyping, edge environments
 
 3. ✅ **driver-mongo** (Week 7)
-   - Version: 4.0.0
+   - Package Version: 3.0.1 (DriverInterface v4.0 compliant)
    - Status: Fully compliant with DriverInterface
    - Features: executeQuery(), executeCommand(), NoSQL QueryAST translation
    - Documentation: MIGRATION.md updated
    - Tests: All passing (80% coverage)
    - Highlights: FilterNode → MongoDB query conversion, smart ID mapping
 
+**Note**: All packages maintain version 3.0.1 due to changeset fixed group constraints. The v4.0 designation refers to DriverInterface specification compliance.
+
 **Remaining Drivers** (5):
 
 4. ⏳ **driver-redis** (Estimated: 5-6 hours)

packages/drivers/DRIVER_COMPLIANCE_MATRIX.md

@@ -47,7 +47,7 @@ For a driver to be fully compliant with the v4.0 standard, it must:
 
 ### 1. @objectql/driver-sql (SQL Databases via Knex)
 
-**Status**: ✅ **FULLY COMPLIANT** - Pilot driver complete (v4.0.0)
+**Status**: ✅ **FULLY COMPLIANT** - Pilot driver complete (DriverInterface v4.0)
 
 | Criterion | Status | Details |
 |-----------|--------|---------|
@@ -69,11 +69,11 @@ For a driver to be fully compliant with the v4.0 standard, it must:
 - ✅ 100% backward compatibility maintained
 - ✅ Comprehensive migration documentation
 
-**Version**: 4.0.0 (upgraded from 3.0.1)
+**Package Version**: 3.0.1 (maintained for changeset compatibility)  
+**DriverInterface Version**: v4.0 compliant
 
 **Files Modified**:
 - `packages/drivers/sql/src/index.ts` - Added DriverInterface methods (+220 LOC)
-- `packages/drivers/sql/package.json` - Version bump to 4.0.0
 - `packages/drivers/sql/MIGRATION_V4.md` - Complete migration guide (NEW, 11.5KB)
 
 **Implementation Highlights**:
@@ -88,7 +88,7 @@ For a driver to be fully compliant with the v4.0 standard, it must:
 
 ### 2. @objectql/driver-mongo (MongoDB)
 
-**Status**: ✅ **FULLY COMPLIANT** - Week 7 complete (v4.0.0)
+**Status**: ✅ **FULLY COMPLIANT** - Week 7 complete (DriverInterface v4.0)
 
 | Criterion | Status | Details |
 |-----------|--------|---------|
@@ -111,11 +111,11 @@ For a driver to be fully compliant with the v4.0 standard, it must:
 - ✅ Supports NoSQL patterns with aggregation pipeline
 - ✅ Smart ID mapping (API 'id' ↔ MongoDB '_id')
 
-**Version**: 4.0.0 (upgraded from 3.0.1)
+**Package Version**: 3.0.1 (maintained for changeset compatibility)  
+**DriverInterface Version**: v4.0 compliant
 
 **Files Modified**:
 - `packages/drivers/mongo/src/index.ts` - Added DriverInterface methods (+230 LOC)
-- `packages/drivers/mongo/package.json` - Version bump to 4.0.0
 
 **Implementation Highlights**:
 1. **executeQuery()**: Converts QueryAST FilterNode to MongoDB query format, reusing existing logic
@@ -136,7 +136,7 @@ For a driver to be fully compliant with the v4.0 standard, it must:
 
 ### 3. @objectql/driver-memory (In-Memory Store)
 
-**Status**: ✅ **FULLY COMPLIANT** - Week 7 complete (v4.0.0)
+**Status**: ✅ **FULLY COMPLIANT** - Week 7 complete (DriverInterface v4.0)
 
 | Criterion | Status | Details |
 |-----------|--------|---------|
@@ -159,11 +159,12 @@ For a driver to be fully compliant with the v4.0 standard, it must:
 - ✅ Zero external dependencies (except @objectstack/spec for types)
 - ✅ Perfect for testing and development
 
-**Version**: 4.0.0 (upgraded from 3.0.1)
+**Package Version**: 3.0.1 (maintained for changeset compatibility)  
+**DriverInterface Version**: v4.0 compliant
 
 **Files Modified**:
 - `packages/drivers/memory/src/index.ts` - Added DriverInterface methods (+200 LOC)
-- `packages/drivers/memory/package.json` - Version bump to 4.0.0, added spec dependency
+- `packages/drivers/memory/package.json` - Added spec dependency
 
 **Implementation Highlights**:
 1. **executeQuery()**: Converts QueryAST FilterNode to legacy filters, reusing existing logic
@@ -443,11 +444,13 @@ Migration Guides:           50% (4/8 have v4 guides)
 | Week 7-8 | 8 drivers (all) | 3 drivers | ✅ Ahead of Schedule | 37.5% complete, 5 remaining |
 
 **Current Status**: Week 7 in progress  
-**Drivers Complete**: ✅ driver-sql v4.0.0, ✅ driver-memory v4.0.0, ✅ driver-mongo v4.0.0  
+**Drivers Complete**: ✅ driver-sql (DriverInterface v4.0), ✅ driver-memory (DriverInterface v4.0), ✅ driver-mongo (DriverInterface v4.0)  
 **Next Targets**: driver-redis, driver-fs, driver-localstorage, driver-excel, driver-sdk
 
 **Achievement**: 37.5% of drivers migrated, significantly ahead of original Week 6-7 schedule!
 
+**Note**: All drivers remain at package version 3.0.1 due to changeset fixed group constraints. The v4.0 designation refers to DriverInterface specification compliance, not package version.
+
 ---
 
 ## Appendix

packages/drivers/memory/MIGRATION.md

@@ -1,13 +1,16 @@
-# Memory Driver Migration Guide (v4.0.0)
+# Memory Driver Migration Guide (DriverInterface v4.0)
 
 ## Overview
 
 The Memory driver has been migrated to support the standard `DriverInterface` from `@objectstack/spec` while maintaining full backward compatibility with the existing `Driver` interface from `@objectql/types`.
 
-**Version**: 4.0.0 (upgraded from 3.0.1)  
+**Package Version**: 3.0.1 (maintained for changeset compatibility)  
+**DriverInterface Version**: v4.0 compliant  
 **Completion Date**: January 23, 2026  
 **Status**: ✅ Fully compliant with DriverInterface v4.0
 
+**Note**: The driver implements DriverInterface v4.0 specification, but the package version remains at 3.0.1 due to changeset fixed group constraints.
+
 ## What Changed
 
 ### 1. Driver Metadata
@@ -17,7 +20,7 @@ The driver now exposes metadata for ObjectStack compatibility:
 ```typescript
 const driver = new MemoryDriver(config);
 console.log(driver.name);     // 'MemoryDriver'
-console.log(driver.version);  // '4.0.0'
+console.log(driver.version);  // '3.0.1'
 console.log(driver.supports); // { transactions: false, joins: false, ... }
 ```
 
@@ -284,7 +287,7 @@ Test coverage includes:
 ## Implementation Details
 
 ### Files Changed
-- `package.json`: Added `@objectstack/spec@^0.2.0` dependency, bumped version to 4.0.0
+- `package.json`: Added `@objectstack/spec@^0.2.0` dependency
 - `src/index.ts`: 
   - Added DriverInterface implementation
   - Added `executeQuery()` method (~35 lines)
@@ -335,17 +338,17 @@ The Memory driver is perfect for:
 
 ### Compatibility Matrix
 
-| Feature | v3.0.1 | v4.0.0 | Notes |
-|---------|--------|--------|-------|
+| Feature | v3.0.1 (before) | v3.0.1 (current) | Notes |
+|---------|-----------------|------------------|-------|
 | Legacy find() | ✅ | ✅ | Unchanged |
 | Legacy create() | ✅ | ✅ | Unchanged |
 | Legacy update() | ✅ | ✅ | Unchanged |
 | Legacy delete() | ✅ | ✅ | Unchanged |
-| executeQuery() | ❌ | ✅ | New in v4.0 |
-| executeCommand() | ❌ | ✅ | New in v4.0 |
-| QueryAST support | ❌ | ✅ | New in v4.0 |
+| executeQuery() | ❌ | ✅ | New - DriverInterface v4.0 |
+| executeCommand() | ❌ | ✅ | New - DriverInterface v4.0 |
+| QueryAST support | ❌ | ✅ | New - DriverInterface v4.0 |
 
-## Migration from v3.0.1 to v4.0.0
+## Migration from v3.0.1 (before) to v3.0.1 (DriverInterface v4.0)
 
 ### Option 1: No Changes Required (Recommended)
 
@@ -354,7 +357,7 @@ Simply update your `package.json`:
 ```json
 {
   "dependencies": {
-    "@objectql/driver-memory": "^4.0.0"
+    "@objectql/driver-memory": "^3.0.1"
   }
 }
 ```
@@ -366,13 +369,13 @@ All existing code will continue to work.
 If you want to use the new features:
 
 ```typescript
-// Before (v3.0.1)
+// Before (legacy API - still works)
 const users = await driver.find('users', {
     filters: [['active', '=', true]],
     limit: 10
 });
 
-// After (v4.0.0) - Using executeQuery
+// After (DriverInterface v4.0) - Using executeQuery
 const result = await driver.executeQuery({
     object: 'users',
     filters: {
@@ -411,17 +414,19 @@ npm install
 
 ## Next Steps
 
-With Memory driver v4.0 complete, the migration pattern is established for other drivers:
+With Memory driver DriverInterface v4.0 compliance complete, the migration pattern is established for other drivers:
 
-1. ✅ SQL Driver (completed - v4.0.0)
-2. ✅ Memory Driver (completed - v4.0.0)
-3. ✅ MongoDB Driver (completed - v4.0.0)
+1. ✅ SQL Driver (completed - DriverInterface v4.0)
+2. ✅ Memory Driver (completed - DriverInterface v4.0)
+3. ✅ MongoDB Driver (completed - DriverInterface v4.0)
 4. 🔜 Redis Driver
 5. 🔜 FS Driver
 6. 🔜 LocalStorage Driver
 7. 🔜 Excel Driver
 8. 🔜 SDK Driver
 
+**Note**: All drivers maintain package version 3.0.1 due to changeset fixed group constraints.
+
 ## References
 
 - [ObjectStack Spec Package](https://www.npmjs.com/package/@objectstack/spec)
@@ -441,5 +446,6 @@ For questions or issues:
 ---
 
 **Last Updated**: January 23, 2026  
-**Driver Version**: 4.0.0  
+**Package Version**: 3.0.1  
+**DriverInterface Version**: v4.0 compliant  
 **Specification**: @objectstack/spec@0.2.0