No, the evaluation YumaPro SDK is meant for commercial entities with active projects to try before they purchase.


However, you can start learning NETCONF and YANG right away with YumaPro SDK Basic which is available for free download from our website:


https://www.yumaworks.com/support/download-yumapro-sdk-basic/


Additionally, if you want to learn more about NETCONF & YANG you should look at the resources and information here: http://www.netconfcentral.org/
and Open Source NETCONF projects can be found here:
https://github.com/CESNET/libnetconf
https://github.com/CESNET/Netopeer
https://github.com/OpenClovis/OpenYuma