What problem are you facing?

With last version including "Consistent type inference for the _id type", findOneAndUpdate (and probably many other functions) returns an object not enhanced with WithId<...>, so _id field does not exists in the result if schema has no or optional _id field.

What driver and relevant dependency versions are you using?

mongodb@4.3.0

Steps to reproduce?

console.log((await ((await getClient()).db('db').collection<{ a: { b: string, c: string }}>('col').findOneAndUpdate({}, { $set: { 'a.b': '' }}))).value?._id);

=> TypeScript error Property '_id' does not exist on type '{ a:

; }'.ts(2339)