2.4.0-beta1

What's Changed

• Bump cross-spawn from 7.0.3 to 7.0.6 by @dependabot in #373
• Bump express from 4.19.2 to 4.21.0 by @dependabot in #364
• Bump elliptic from 6.5.7 to 6.6.1 by @dependabot in #375
• ENH Update code to avoid calling deprecated code by @GuySartorelli in #377

Full Changelog: 2.3.1...2.4.0-beta1