Just because you're on-premises today, doesn't mean you will be there tomorrow. And even if your local laws and regulations make it impossible for you to move to the cloud, there are benefits in extending SharePoint in a cloud-ready way.
In case you wonder which version of the SharePoint Framework you're using, here is how you can check it.
What version of the SharePoint Framework should you use for your project? 'The latest' seems an easy answer, but there is more to it.
You should be scanning your SharePoint applications for vulnerabilities even when their code hasn’t changed. Here is why.