Release 4.4.8 (stable)

[Valeri Karpov]

4.4.8 / 2016-03-18
==================
 * docs(aggregate): clarify promises #3990 https://github.com/megagon
 * fix: upgrade mquery -> 1.10 #3988 https://github.com/matskiv
 * feat(connection): 'all' event for repl sets #3986 https://github.com/xizhibei
 * docs(types): clarify Array.pull #3985 https://github.com/seriousManual
 * feat(query): support array syntax for .sort() via mquery 1.9 #3980
 * fix(populate): support > 3 level nested populate #3973
 * fix: MongooseThenable exposes connection correctly #3972
 * docs(connection): add note about reconnectTries and reconnectInterval #3969
 * feat(document): invalidate returns the new validationError #3964
 * fix(query): .eq() as shorthand for .equals #3953 https://github.com/Fonger
 * docs(connection): clarify connection string vs passed options #3941
 * docs(query): select option for findOneAndUpdate #3933
 * fix(error): ValidationError.properties no longer enumerable #3925
 * docs(validation): clarify how required validators work with nested schemas #3915
 * fix: upgrade mongodb driver -> 2.1.8 to make partial index errors more sane #3864

New Bugs
========

Please report any issues if they do not already exist:
https://github.com/Automattic/mongoose/issues/new

Security
======

If your application uses buffers, you should upgrade to >= 4.3.6 or ~3.8.39. See this GitHub issue for more information https://github.com/Automattic/mongoose/issues/3764.