1.5.3

What's Changed

• digraph: fix String method for chains/cycles by @james-d-mitchell in #542
• Disable edge labels if not already set in some cases by @james-d-mitchell in #540
• build: remove the default flag -march=native by @james-d-mitchell in #541
• doc: fix typos by @james-d-mitchell in #544
• Update version numbers etc for 1.5.3 by @james-d-mitchell in #547

Full Changelog: v1.5.2...v1.5.3