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blender-core-versions

Document Blender Python API breaking changes and migration paths across versions.

30|4|Updated Mar 5, 2026
Search Tags:#versioning#compatibility#migration#addon development#blender#python api
One-click install
npx skills add https://github.com/OpenAEC-Foundation/Blender-Bonsai-ifcOpenshell-Sverchok-Claude-Skill-Package --skill blender-core-versions
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: blender-core-versions
Source: https://github.com/OpenAEC-Foundation/Blender-Bonsai-ifcOpenshell-Sverchok-Claude-Skill-Package/tree/main/skills/blender/core/blender-core-versions
Command: npx skills add https://github.com/OpenAEC-Foundation/Blender-Bonsai-ifcOpenshell-Sverchok-Claude-Skill-Package --skill blender-core-versions

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps developers and users navigate the complexities of Blender's Python API across different versions, preventing compatibility issues and ensuring smooth code execution.

Core Features & Use Cases

  • Version Matrix: Provides a clear overview of Python and Blender version compatibility.
  • Breaking Changes: Details critical API changes between versions with migration paths.
  • Version-Safe Patterns: Offers code examples for writing scripts that work across multiple Blender versions.
  • Use Case: When updating an addon from Blender 3.6 to 4.2, use this Skill to quickly identify and fix API calls that have changed, such as context overrides or node socket definitions.

Quick Start

Provide a Python code snippet that checks if the current Blender version is 4.0 or higher.

Frequently Asked Questions about blender-core-versions

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I migrate a Blender addon from version 3.6 to 4.2?▼

To migrate a Blender addon from 3.6 to 4.2, update deprecated Python API calls using the provided version matrix and migration paths. You can locate changed API definitions like context overrides and apply version-safe coding patterns to ensure compatibility.

What are the breaking changes in the Blender Python API between versions?▼

Breaking changes in the Blender Python API involve modifications to context overrides and node socket definitions across versions. The API version matrix details these specific structural changes and provides migration paths from Blender 3.x through 5.1.

How do I write version-safe Python scripts for Blender 3.x, 4.x, and 5.x?▼

Write version-safe Python scripts for Blender by utilizing code examples that check the current Blender version and adapt API calls dynamically. This Skill provides patterns to ensure your addon executes smoothly across Blender 3.x, 4.x, and 5.x environments.

Does my Blender addon development environment need Python 3.10+ for API compatibility checks?▼

Yes, performing Blender API compatibility checks and using version-safe coding practices requires a Python 3.10+ environment. This setup ensures proper execution of scripts and addon migration across Blender 3.x, 4.x, and 5.x versions.

Why does my Blender Python script fail with context override errors after updating?▼

Blender Python scripts fail with context override errors after updating because critical API definitions changed between versions like 3.6 and 4.2. Use the version matrix to identify the specific breaking changes and apply the correct migration paths to resolve the errors.

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