[ANN] dune 3.9.0

Ecosystem
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To expand on that:

In Dune 3.9.0, we added a feature that offloads some computations to background threads. Unfortunately, this has a bad interaction on macOS, where we fork processes to implement the RPC server and watch mode.

We marked Dune 3.9.0 unavailable on macOS, and released 3.9.1 with some mitigations: we don’t offload these computations on macOS, and we only fork when necessary.

The plan for the next release is to stop forking processes on macOS.

The first alpha for Dune 3.10.0 is planned to happen around 2023-07-24T22:00:00Z.

Here’s the changelog for 3.9.1:

Fixes

  • Disable background operations and threaded console on MacOS and other Unixes where we rely on fork. (#8100, #8121, fixes #8083, @rgrinberg, @emillon)
  • Initialize async IO thread lazily. (#8122, @emillon)
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