Update changelog for #3792 and #3881
Update changelog for #3792 and #3881

arnkorty/mongoid,joshsoftware/mongoid,kay-kim/mongoid,herimedia/mongoid,zBMNForks/mongoid,simi/mongoid,drobune/mongoid,zenjoy/mongoid,arnkorty/mongoid,cao7113/mongoid,bjori/mongoid,nicolasblanco/mongoid,kcdragon/mongoid,Azzurrio/mongoid,karmakaze/mongoid,kayakyakr/mongoid,mongodb/mongoid,glebtv/mongoid,drobune/mongoid,narutosanjiv/mongoid,mongoid/mongoid,zBMNForks/mongoid,Welovroi/mongoid,kay-kim/mongoid,bjori/mongoid,sivagollapalli/mongoid,Zhomart/mongoid,jonhyman/mongoid,Azzurrio/mongoid,uniiverse/mongoid,uniiverse/mongoid,glebtv/mongoid,sideci-sample/sideci-sample-mongoid,Zhomart/mongoid,kcdragon/mongoid,estolfo/mongoid,bencrouse/mongoid,mongoid/mongoid,mysociety/mongoid,wuboy0307/mongoid,codedogfish/mongoid,sivagollapalli/mongoid,tzar/mongoid,rinmu/mongoid,cao7113/mongoid,estolfo/mongoid,tzar/mongoid,jonhyman/mongoid,zaithottakath/mongoid,herimedia/mongoid,zenjoy/mongoid,wuboy0307/mongoid,jbrien/mongoid,mongodb/mongoid,rinmu/mongoid,nviennot/mongoid,narutosanjiv/mongoid,karmakaze/mongoid,amw/mongoid,kayakyakr/mongoid,jbrien/mongoid,codedogfish/mongoid,amw/mongoid,joshsoftware/mongoid,simi/mongoid,rpocklin/mongoid,Sharevari-Inc/mongoid,Welovroi/mongoid,mysociety/mongoid,rpocklin/mongoid,nviennot/mongoid,Sharevari-Inc/mongoid,zaithottakath/mongoid,sideci-sample/sideci-sample-mongoid,mongodb/mongoid,bencrouse/mongoid