Bigger bundle sizes with Vite 6

[obecker]

Hi,

after upgrading Vite in my (react) projects from 5.4.11 to 6.0.1 I noticed bigger bundle sizes in the packaged JS (i.e. typically dist/assets/index-xxx.js). In one project the file grow from 278.38kB to 283.55kB (5kB bigger), in another it got 4kB bigger.

Is this an expected behavior?

[hi-ogawa]

That sounds similar to #18523 and this is documented in https://vite.dev/guide/migration.html#advanced

commonjsOptions.strictRequires is now true by default (was 'auto' before).
This may lead to larger bundle sizes but will result in more deterministic builds.

[obecker]

Ah, I missed that. Thank you!