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CLI

--fix-dry-run​

Prints a unified diff of what --fix would do, without writing files. If both --fix and --fix-dry-run are set, dry-run wins (stderr warning).

markuplint --fix-dry-run index.html

--allow-warnings default​

v4: warnings produced a non-zero exit status unless --allow-warnings was passed.

v5: warnings are allowed by default. Restore v4 with --no-allow-warnings.

# v4 default
markuplint index.html

# v5 equivalent
markuplint --no-allow-warnings index.html

--max-warnings=N still caps warnings.

--config does not merge​

v4: --config file loaded that file and auto-discovered .markuplintrc, then merged.

v5: --config file loads only that file.

If you relied on the merge, extends the project config from the file you pass to --config.

Progressive output by default​

v4: results were printed only after every file had been processed.

v5: results print immediately as each file is processed. Restore v4 with --no-progressive-output.

# v4 default
markuplint --no-progressive-output "**/*.html"

# v5 default (no flag needed)
markuplint "**/*.html"

JSON output (--format json) is unaffected, and always uses batch mode.