6.4.5 / 2022-07-18

• fix(model+timestamps): set timestamps on subdocuments in insertMany() #12060
• fix: correct isAtlas check #12110 skrtheboss
• fix(types): fix various issues with auto typed schemas #12042 mohammad0-0ahmad
• fix(types): allow any value for AddFields #12096
• fix(types): allow arbitrary expressions for ConcatArrays #12058
• fix(types): make $addToSet fields mutable to allow programatically constructing $addToSet #12091
• fix(types): add $let as a possible expression to $addFields #12087 AbdelrahmanHafez
• fix(types): fix $switch expression type #12088 AbdelrahmanHafez
• fix(types): correct options type for syncIndexes() #12101 lpizzinidev
• fix(types): avoid treating | undefined types as any in Require_id to better support _id: String with auto-typed schemas #12070
• docs: fix up various jsdoc issues #12086 hasezoey
• docs: add sanitizeFilter to mongoose.set() options #12112 pathei-kosmos