Changelog

This documents notable changes in DistributedNext.jl. The format is based on Keep a Changelog.

v1.3.2 - 2026-08-18

Fixed the precompilation workload to always use the loopback address, which could otherwise cause errors on some systems (#74).

Fixed an incorrect assumption in start_worker that the loopback bind_addr would be IPv4, which is untrue on macOS. This fixes silent hangs during precompile on macOS, and also ensures start_worker errors are properly reported (#68).

The internals were completely refactored to move all global variables into a single struct (#61). This should not be a user-visible change, but of course it's possible that some things slipped through the cracks so please open an issue if you encounter any bugs.
A precompilation workload was added to improve TTFX (#62).

Implemented callback support for workers being added/removed etc (#17).
Added a package extension to support Revise.jl (#17).
Added support for setting worker statuses with setstatus and getstatus (#17).

Modified the default implementations of methods like take! and wait on AbstractWorkerPool to be threadsafe and behave more consistently with each other (#21). This is technically breaking, but it's a strict bugfix to correct previous inconsistent behaviour so it will still land in a minor release.

Fixed a cause of potential hangs when exiting the process (#16).
Fixed a subtle bug in remotecall(f, ::AbstractWorkerPool), previously the implementation would take a worker out of the pool and immediately put it back in without waiting for the returned Future. Now it will wait for the Future before putting the worker back in the pool (#20).
Fixed cases like addprocs([("machine 10.1.1.1:9000", 2)]) where the bind port is specified. Previously this would cause errors when the workers all tried to bind to the same port, now all additional workers will treat the bind port as a port hint (#19).
Fixed a bug in the network interface selection code that would cause it to error when only a subset of interfaces reported the negotiation speed (#29).

A watcher mechanism has been added to detect when both the Distributed stdlib and DistributedNext may be active and adding workers. This should help prevent incompatibilities from both libraries being used simultaneously (#10).
other_workers() and other_procs() were implemented and exported (#18).
The SSHManager now supports specifying a bind port hint in the machine specification (#19, see the addprocs() docs).

Fixed behaviour of isempty(::RemoteChannel), which previously had the side-effect of taking an element from the channel (#3).
Improved thread-safety, such that it should be safe to start workers with multiple threads and send messages between them (#4).

Added a project argument to addprocs(::AbstractVector) to specify the project of a remote worker (#2).
Workers will now attempt to pick the fastest available interface to communicate over (#9).
The SSHManager now passes all JULIA_* environment variables by default to the workers, instead of only JULIA_WORKER_TIMEOUT (#9).