Blender Dev 0.4.0

Released: 2026-03-15

Integrated Linter Setup: The “Setup Python Interpreter” action now automatically triggers the installation and configuration of the fake-bpy-module linter for the selected Blender version.
Junie Agent Guidelines: Introduced a dedicated set of instructions and specialized skills for AI agents (.agent/junie_instructions.md) to ensure consistent behavior, standardized commit messages, and correct environment management.
Linter Progress Indicators: Real-time progress for linter file installations is now visible in the Tool Window’s progress panels, providing clear feedback during the pip installation process.
Managed/System Blender Actions: Refactored the tool window to use dedicated button panels below both the Managed and System tables for easier management.
Setup Linter: Connected the “Setup Linter” buttons in the Tool Window to the automatic linter installation and configuration logic, allowing users to manually trigger fake-bpy-module installation for any Blender version.
Python Interpreter Setup: Added functionality to automatically configure the project’s Python interpreter to use the one bundled with a selected Blender installation.
Linting Support: Automatically installs fake-bpy-module via pip when a Blender version is downloaded.
Interpreter Path Configuration: Programmatically configures the Python SDK’s classpath to include the standard library, Blender modules, and the installed fake-bpy-module linting files.

Blender Downloader: Simplified the Blender extraction process and flattened the directory structure to reduce nesting, now using a dedicated app subfolder (e.g., system/blender_downloads/app/<version>). Improved version management by ensuring version directories are created only during extraction and added macOS-specific app renaming (e.g., Blender 4.2.app) for better identification.
Table Layout: Separated Managed and System Blender installation tables into individual classes and adjusted column widths for better readability.
Run Configuration: Removed the “Custom” Blender path selection from Run Configurations to focus on using managed and detected system installations.

SDK Management: Resolved a SymbolicIdAlreadyExistsException and potential infinite loops when programmatically configuring Python interpreters and linting paths.
UI Improvements: Moved the Blender installation path to a dedicated read-only field in the System table for easier access and added an “Interpreter” column to the tables.
Python Interpreter Setup: Fixed a Write access is allowed inside write-action only error and an Unknown Sdk type error when configuring the Blender Python interpreter.
Code Quality: Removed unused attributes and refined internal API for version management.
Fixed Softlock in NPW: Addressed a softlock issue in the New Project Wizard.