v5.1.0

What's Changed

• Bump rexml from 3.2.6 to 3.3.9 in /docs by @dependabot in #408
• Permit use with React 19 by @willeastcott in #409
• Standardize on nullish coalescing operator in constructors by @willeastcott in #410

Full Changelog: v5.0.0...v5.1.0