fix: add empty string check for collection name passed #14806 Shubham2552

fix(document): call required functions on subdocuments underneath nested paths with correct context #14801 #14788

perf(clone): avoid further unnecessary checks if cloning a primitive value #14762 #14394

perf(model): performance improvements for insertMany() #14724

perf: memoize toJSON / toObject default options #14672

types: correct this for validate.validator schematype option #14720 #14696

perf: avoid unnecesary get() call and use faster approach for converting to string #14673 #14394

fix: remove 0x flamegraph files from release

perf: more toObject() perf improvements #14623 #14606 #14394

fix: pass options to clone instead of get in applyVirtuals #14606 #14543 andrews05

feat: upgrade mongodb -> 6.6.2 #14584

fix(query): shallow clone $or, $and if merging onto empty query filter #14580 #14567

perf(document): avoid cloning options using spread operator for perf reasons #14565 #14394

perf(document): add fast path for applying non-nested virtuals to JSON #14543

fix(populate): avoid match function filtering out null values in populate result #14518 #14494

fix(document): make update minimization unset property rather than setting to null #14504 #14445

feat(document): add validateAllPaths option to validate() and validateSync() #14467 #14414

types(query): bring "getFilter" and "getQuery" in-line with "find" and other types #14463 hasezoey

fix(schema): avoid returning string 'nested' as schematype #14453 #14443 #14435

fix(model): improve update minimizing to only minimize top-level properties in the update #14437 #14420 #13782

fix(document): make $clone avoid converting subdocs into POJOs #14395 #14353

feat(model): add recompileSchema() function to models to allow applying schema changes after compiling #14306 #14296

fix: avoid corrupting $set-ed arrays when transaction error occurs #14346 #14340

fix: include virtuals in document array toString() output if toObject.virtuals set #14335 #14315

fix(model): throw readable error when calling Model() with a string instead of model() #14288 #14281

feat: upgrade MongoDB driver -> 6.3.0 #14241 #14189 #14108 #14104

docs: update TLS/SSL guide for Mongoose v8 - MongoDB v6 driver deprecations #14170 andylwelch

fix(schema): avoid creating unnecessary clone of schematype in nested array so nested document arrays use correct constructor #14128 #14101

types(document): correct return type for doc.deleteOne() re: Mongoose 8 breaking change #14110 #14081

fix: retain key order with aliases when creating indexes with alias #14042 meabed

docs: add version support notes for Mongoose 8, including EOL date for Mongoose 6

BREAKING CHANGE: use MongoDB node driver 6, drop support for rawResult option and findOneAndRemove() #13753

fix(query): apply sanitizeFilter in countDocuments and cursor

fix(utils): allow merging single nested paths and document array paths outside of discriminator schema merges #16351 #9534

fix(document): add additional defensive checks for special properties in Document.prototype.get()

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fix(bulkWrite): pass overwriteImmutable option to castUpdate fixes #15789 #15782 #15781

types(aggregate): allow calling project() with a string #15304 #15300

chore: remove coverage output from bundle

chore: re-release to force npm audit to pick up 6.x fix for CVE-2025-23061

fix: disallow nested $where in populate match

fix: disallow using $where in match

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fix(populate): handle multiple spaces when specifying paths to populate using space-delimited paths #13984 #13951

perf: avoid storing a separate entry in schema subpaths for every element in an array #13953 #13874