Is there a better way to solve the incompatibility between versions of swc_core?

[tclxshunquan-wang]

The swc_core used by the community library is not standardized, which poses a significant obstacle for developers.

[CPunisher]

Which version of swc_core are you using? And which version of swc_core are you going to upgrade?

[tclxshunquan-wang]

Take this as an example. In fact, my custom plugin is not compatible with rspack and nextjs. Because I don't know which version swc_core is using. If swc_core could be backward compatible, this problem wouldn't exist.

[CPunisher]

We have been working hard to make wasm plugin as backward compatible as possible: https://blog.swc.rs/2025-11-4-wasm-backward-compatibility

But for the plugins before they are compiled with the latest swc_core and necessary configuration, you still need to know which version of swc_core the plugins compile with. For example, check out the Cargo.toml in that plugin source code.