The more time it passes, the less need I see for periodic restarts. For example, a few years ago I would need to restart some servers due to memory fragmentatio

The more time it passes, the less need I see for periodic restarts. For example, a few years ago I would need to restart some servers due to memory fragmentation that would cause some allocations to fail (we needed some processes to get big chunks of continuous memory). Right now it doesn't happen. Memory leaks are rarer, and in general things work well. I have some servers with more than a year uptime and still working well.