One of the greatest strengths of open source development is how it enables collaboration across the entire world. However, because open source development is a global activity, it necessarily involves making available software across national boundaries. Some countries’ export control regulations, such as the United States, may require taking additional steps to ensure that an open source project is satisfying obligations under local laws.
In July of 2020, The Linux Foundation published a whitepaper on how to address these issues in detail, which can be downloaded here. In 2021, the primary update in the paper is to reflect a change in the US Export Administration Regulations.
Please see the updated paper and the EAR for more specific details about this change.