: Some versions (up to 4.14.0) can be found on SourceForge's Bot Framework Mirror. Templates and Tools If you need project starters or testing tools:
: The most reliable source for the latest official ZIP archives of the SDK is the Microsoft Bot Framework GitHub Releases page. Download botbuilder zip
: Specific Python-targeted archives are available via the BotBuilder-Python Releases or the Python SDK SourceForge Mirror . : Some versions (up to 4
To download the for development, you should primarily use the official GitHub repositories or specific template links, as the project is entering its final long-term support phase ending in December 2025. Core SDK Downloads Download botbuilder zip
You can download the full source code or specific versions as ZIP files from these primary sources: