I see that ExpressIF have released a new framework on git hub…
Are there any plans to upgrade the framework from the current v3.0 to v3.1 at all ? This new release includes support for the BT SPP profile which I’m keen to use in my current project.
This is pre-release. We support official stable software. The latest release is 3.0.3. See Release ESP-IDF Release v3.0.3 · espressif/esp-idf · GitHub