I am an active user of the SO chat and there are a few things that bug me for example that (until recently fixed) users could request access to a gallery room with 1 reputation or that the chat page still looks.... Well how it looks:
Before I open feature-request question after question here mentioning the things I would love to see changed, I wondered if there is any active development on the chat going on. Active in the sense of the changes that for example the SE main pages get in voting systems (there is something going on on SO with a potential new delete/undelete system) or the big css changes that were rolled out to make the site responsive.
With the example above it is clear that there are changes made but that took almost 11 months until the issue was said to be solved.