Is this maintained? It seems like none of the repos have had a commit in 6 months.
If the code is stable, why does it require maintenance at all? I dont think the amount of commits in last 6 months should even be a metric. Issues would be a better place to look for maintenance.
Example: Linux 2.0.39 [1] was released in January 2001, no code changes since then. Some might say it's really stable by now, right? But that doesn't make sense; how could it be more stable than when it was released in 2001? Actually, it's much less stable. Try to download it, compile it, and run it on your modern system today. Will it even compile? Is your hardware fully supported? Will any new software break running under that old of a kernel? Probably all these and more problems will happen; yet we call it "stable". If you want to actually use it today, you would need to maintain the code.
This is why most of the cost of software is in the maintenance. As long as you're running it, you're maintaining it. (The exception is mainframes running the same hardware & software forever)
[1] https://mirrors.edge.kernel.org/pub/linux/kernel/v2.0/linux-...