Today VMware announced the upcoming death of the vSphere C# Client. It will officially be discontinued in the next major release of vSphere. In the next version of vSphere, the only way you will be able to manage your environment is the web client. We have known for a long time that VMware had intended to do this.
Today, most VMware admins use both the C# client and the Web Client. I personally only use the web client when I have to. There are many things I like about the Web Client, but speed wins. With the HTML5 web client, the speed is closer.
VMware did the right thing by releasing the vSphere HTML5 Web Client a few months back via VMware Flings. I’ve been using it in my home lab since the original release and it have gotten considerably better. In very interested to see what the end up doing with VUM.
Do we really need the C# anymore? All new features are only available through the Web Client. vSphere 6.0U2 comes embedded with the embedded host client, which allows you to do basic configuration that you would use the C# for in the past.
If you get the opportunity, check out the HTML5 in a test environment and give it a shot.