You developed a cool NetBeans plugin? Now you want it be to be available via the official update center, so that it can be installed directly from the NetBeans IDE via the built-in Plugins Manager and gets more attention from the users?
Then you have to adhere to the verification and quality rules defined in  and . You have to define a license, sign the package and so on. Your plugin will also be tested from several trusted community members and they give a go or a no-go. For some plugin developers this process seems to be too much overhead and too time-consuming. They do not request a verification and therefore their plugin is not available in the Plugins Manager from your IDE. That is a pity, because this way you miss many useful plugins (Geertjans plugins, Compare to clipboard, JVisualVM samples, …). For example there are only 67 of 136 plugins verified for NB 7.2.
Of course you could download the plugin manually from the plugin portal at  and install them manually, but this not very comfortable IMHO. It is also not reasonable for me to contact all the authors and beg them for getting their plugins verified. So i opened a ticket  for an update center which contains those non-verified plugins. And guess what. The NB team now provides such URLs:
As warning: Using these URLs you are going to install non-verified, experimental and non-quality-checked plugins, which could make your NetBeans IDE unstable/slow down or even crash. Only install plugins you know and trust. You can be sure that the NetBeans developers will not support any issues regarding these plugins.
You want to have more quality plugins available and don’t want to go this inofficial way of experimental update centers? So please encourage the authors of your favorite plugins to request a verification. Thank you!