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docs: note that the README demos are real output from the example projects #2474

	name: Version Guard

	on:
	pull_request:
	branches:
	- main
	push:
	branches:
	- main
	workflow_dispatch:

	permissions:
	contents: read

	jobs:
	block-1-0:
	name: Block automatic 1.0 releases
	runs-on: ubuntu-24.04
	steps:
	- uses: actions/checkout@v4

	- name: Reject versions at or above 1.0.0
	run: \|
	python - <<'PY'
	import sys
	import tomllib

	with open("pyproject.toml", "rb") as pyproject:
	version = tomllib.load(pyproject)["project"]["version"]

	parts = version.split(".")
	try:
	major = int(parts[0])
	except (IndexError, ValueError):
	print(f"Invalid project version: {version}", file=sys.stderr)
	sys.exit(1)

	if major >= 1:
	print(
	f"Refusing automatic release version {version}. "
	"Crossing to 1.0.0 requires an explicit manual decision.",
	file=sys.stderr,
	)
	sys.exit(1)

	print(f"Project version {version} is below 1.0.0.")
	PY