release notes for 1.4.0 (#1162) - #1177

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: jrouly/scalafmt-native-action@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/