Yeah, definitely. I saw that in my quick attempt to update to Rspack 2.0.0, which we discussed here: https://forums.meteor.com/t/rspack-2-0-released/64576
This is not related to the Meteor 3.4.1 release. That release doesn’t verify Rspack 2.0.0 compatibility, since it’s a patch version and Rspack 2.0.0 came later with breaking changes.
Anyway, we are aware of the breaking changes in Rspack 2.0.0. It’s likely something we need to handle in the @meteorjs/rspack package, and maybe it can be patched there, though I’m not sure if it can be overridden through rspack.config.js direcly in your local projects.
I haven’t had time yet to dive more deeply into those failures, but I got the same errors you posted. I will do shortly.