core-js@<3.23.3 is no longer maintained, upgrade to 3.23.3

[merlinpaypal]

Please upgrade core-js dependencies to 3.23.3 to avoid this warning

Warning

npm WARN deprecated [email protected]: core-js@<3.23.3 is no longer maintained and not recommended for usage due to the number of issues. Because of the V8 engine whims, feature detection in old core-js versions could cause a slowdown up to 100x even if nothing is polyfilled. Some versions have web compatibility issues. Please, upgrade your dependencies to the actual version of core-js.

Dependency Tree

├─┬ @krakenjs/[email protected]
│ ├─┬ @babel/[email protected]
│ │ └── [email protected] deduped
│ ├─┬ @babel/[email protected]
│ │ └── [email protected]
│ └─┬ [email protected]
│   └─┬ [email protected]
│     └── [email protected]

[merlinpaypal]

babel/polyfill fix

Looking further into this, @babel/polyfill is deprecated

This package has been deprecated in favor of separate inclusion of a polyfill and regenerator-runtime (when needed). See the @babel/polyfill docs (https://babeljs.io/docs/en/babel-polyfill) for more information.

Looking at their docs, they say

As of Babel 7.4.0, this package has been deprecated in favor of directly including core-js/stable (to polyfill ECMAScript features):

import "core-js/stable";

babel-plugin-transform-class-properties fix

As for babel-plugin-transform-class-properties, this page notes that This plugin is included in @babel/preset-env, in ES2022, which can be confirmed in the preset package here.

So that package can be removed or if it needs to be explicitly included, it has been moved to @babel/plugin-transform-class-properties