This release adds the support of node 16. npm will stop complaining about it:
npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE package: 'stylelint-config-property-sort-order-smacss@7.0.0',
npm WARN EBADENGINE required: { node: '^10.0.0 || ^12.0.0 || ^14.0.0 || ^15.0.0' },
npm WARN EBADENGINE current: { node: 'v16.5.0', npm: '7.20.3' }
npm WARN EBADENGINE }
Changelog: https://github.com/cahamilton/stylelint-config-property-sort-order-smacss/releases/tag/v7.1.0