Sencha Ext JS 8.0 introduces ES2025 support: how important is modern JS support in frameworks?
Posted by Frontend_DevMark@reddit | programming | View on Reddit | 2 comments
One interesting update in Ext JS 8.0 is expanded ECMAScript support (up to ES2025) through updates to Sencha Cmd and the build tooling.
That means developers can use modern JS syntax like:
- let / const
- arrow functions
- newer language APIs
without relying heavily on polyfills or custom transpilation.
In theory this makes older frameworks easier to maintain alongside modern tooling.
But it raises a bigger question:
When choosing a framework for large applications, how important is native support for the latest JavaScript features versus framework stability and long-term support?
Curious how teams balancing legacy codebases approach this.
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