Upnp patch submitted and merged but never came to 2.2.1
i had submitted a patch for upnp to allow multiple hosts entries rather than just 4 and it was merged also to master but never ended up in 2.2.1 release
nor did this endup in 2.2.1
Both of those are features, we don't merge features into maintenance branches. You can use the System Patches package to add that to systems where you need it in the mean time. The master branch will become 2.3 later this year.