6.3.6 / 2022-06-07

• fix(update): apply timestamps to nested subdocs within $push and $addToSet #11775
• fix(document): use shallow clone instead of deep clone for toObject() options #11776
• fix: avoid checking for ObjectId with instanceof #11891 noseworthy
• fix(types): Allow sorting by text score #11893
• fix(types): allow schematype get() functions to return undefined #11561
• fix(types): add Schema.discriminator #11855 Uzlopak
• fix(types): discriminator generic type not being passed to schema #11898 GCastilho