Designer
September development focused on expanding REST GET payload controls, introducing IntendedPurpose categorization for ViewModels, enhancing MCP server capabilities, and refining editor interaction mechanics.
- REST GET Strategy & Payload Controls: Fully extended the BYTEARRAYCONTENT and STRINGCONTENT strategy to REST GET endpoints, allowing fine-grained control over return data; combined with FileName and ContentType columns, any string or stream can now be downloaded to any target in any format (with STRINGCONTENT defaulting to UTF-8), alongside a major refactoring of special ViewModel column names into centralized constants.
- ViewModel Intended Purpose: ViewModels can now declare an IntendedPurpose metadata property, enabling automatic category sorting and proactive warnings when ViewModels are utilized outside their designated purpose.
- MCP & AI Tooling: Extended the Designer’s built-in MCPServer with MetaModelMetaInfo, wiki search, and lookup functionality based on real-world usage scenarios; integrated a DeepSeek test harness to expose high-level ViewModel and Vibe functions.
- UI & Tree Editor Fixes: Resolved drag-and-drop timing and leftover artifact issues in the ViewModel tree, fixed focus-loss keystroke handling in the OCL editor, registered application icons under CurrentUser to eliminate admin privilege requirements, and fixed a Visual Studio model-switching bug that broke model saving.
Framework
Framework updates prioritized type evaluation safety, REST response handling, WPF layout rendering, and GraphAPI enhancements.
REST & Content Handling
- Enhanced REST GET support for BYTEARRAYCONTENT and STRINGCONTENT strategy with FileName and ContentType column bindings across runtime targets.
- Fixed an issue where sending a RestPost without an explicit ID failed to return the expected vRestVerb.
Type Safety & CodeGen
- Resolved runtime exceptions during string-to-enum comparisons by automatically coercing enums via ToString prior to comparison.
- Fixed CodeGen enum serialization issues where ToString operators incorrectly returned numeric values instead of the enum value name.
- Corrected VMClass.CanExecuteAction logic to properly verify the existence of explicit read-only columns (GetExplicitColumnFor_ReadOnly).
UI Layout & Integration
- WPF Grid & Blob Rendering: Fixed WPF grid measurement issues that caused labels and buttons to clip due to pixel grid sizing, resolved missing WPF design-time DataGrid columns, and fixed static SVG/blob rendering discrepancies between WPF and Turnkey.
- SysDebugger & GraphAPI: Enabled selfVM usage in SysDebugger action expressions to allow direct calls like selfVM.Save; updated SysGraphAPI.UploadToFolderWithDriveIdAndId to set WebUrl and improved error messages for missing SysUser configurations.
Turnkey
Turnkey updates focused on REST payload delivery parity and REST POST verb responses.
- REST GET Parity: Implemented support for the updated BYTEARRAYCONTENT and STRINGCONTENT download strategy, allowing custom stream and string downloads using FileName and ContentType columns.
- REST POST Fixes: Fixed an issue where RestPost requests submitted without an ID failed to populate and return the vRestVerb state properly.
Server
- Ecosystem Alignment: Modernized internal type names and updated core system references across server assemblies to ensure compatibility with .NET 10 standards.
Full release notes: ReleaseNotes:ReleaseNotes - MDrivenWiki