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Welcome to the setup-swift wiki! Your one stop for frequent questions and details about this action.

Basic Workings

This action uses swift.org repo to get toolchains version data to compare with user provided version inputs. Specific commit id stored in GitHub pages metadata is used for fetching swift.org repo. This commit id can be overridden with providing custom commit hash, branch name, tag or any other git ref in the check-latest option, or just providing true will fetch the latest commit in default branch.

The GitHub pages metadata is updated if new changes published in swift.org repo that don't break this action, the CI of this action takes care of this update and testing if any breaking changes automatically.