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6de74668d5
We inherited this "compatibility promises" document from our predecessor as part of the fork, but have now come to realize that the specific set of platforms it committed to support had become quite stale over time: macOS support for x64 is phasing out in favor of Apple Silicon, and 32-bit CPU architectures are no longer commonly used. In preparation for some anticipated future changes to platform support, this revises the "Supported Platforms" section of our compatibility promises so that it no longer commits to any specific platforms and instead documents that we intend to provide two minor release period's worth of advance notice for removing support for any platform that is currently supported. This is a more sustainable compromise that will allow us to respond to ongoing changes in which platforms are commonly used in our community, and which platforms are supported well by the dependencies that OpenTofu relies on. This also proactively switches from listing darwin_amd64 to darwin_arm64 and removes the commitment to support linux_arm. We do not intend to immediately stop testing on and building for those two platforms, but we do expect to phasing them out under the revised version of this policy in future releases and so this update serves as part of our initial communication about that future change. Signed-off-by: Martin Atkins <mart@degeneration.co.uk>