Introduction of Labeling BEAM Processes for Improved Observability

Elixir and Erlang/OTP development has seen a significant update in the realm of process observability. In the upcoming update Erlang/OTP 27.0, and consequently Elixir 1.17.0, a new feature allows a process to assign itself a non-unique label, offering a symbolic name to represent its role within an application. This functionality enriches developer tools like Observer and provides more context in crash logs. The author initially proposed this idea on an Erlang mailing list and followed its progression to eventual implementation by Dan Gudmundsson. They also contributed by opening a pull request to introduce 'Process.set_label/1' to Elixir. Intending to make processes neither entirely anonymous nor requiring unique names, this feature fills an important gap for developers seeking to better understand and monitor their applications. It's a forward step in making BEAM-based systems more intelligible and easier to debug.