Python 3.6 is reaching its end of life and will no longer receive updates or maintenance after December 23rd, 2021, which means that Alpaca's Python SDKs will also stop supporting it. This change may cause issues with older projects if they are upgraded to newer versions of the packages, requiring developers to keep track of dependencies such as numpy and pandas on their own. On the other hand, users already using Python 3.7 or above in their projects will not be affected by this change and can continue to update their projects to future releases without any issues.