In .NET for plugin management there are unloadable assemblies so you can dynamically load and unload e.g. plugins at runtime. However, it requires care, has cav

In .NET for plugin management there are unloadable assemblies so you can dynamically load and unload e.g. plugins at runtime. However, it requires care, has caveats and the industry generally gravitates to other techniques for zero-downtime and/or rolling deployments where the replicas (nodes) are at first drained, then shut down, and replaced one by one or in groups but never in a way where there are none to serve the requests.