New Features

Thread Safe - share your LiteDatabase instance across threads
MultiKey index - support index in array field
Faster than ever - compare results with SQLite here
LiteEngine - new simple class to access your documents
New checkpoint cache to support large transactions using journal file
BsonDocument implements IDictionary, BsonArray implements IList
Autocommit disabled support
Less 96 bytes per document
New: Upsert, FindIndex, Query.Not(Query), Query.Where(Func<>)
New BsonMapper class: support Fields and NonPublic members
FileStorage now supports OpenWrite("fileId")
Virtual index fields -.Index("total", x => x.Products.Sum(p => p.Price))
[BsonRefAttribute]
Shrink with change password
Open datafile in ReadOnly mode
LiteDB.Core was removed - LiteDB.dll is now NETStandard 1.4 (Supports UWP, Xamarin, Core, Mono)

Changes

Some methods are moved from LiteDatabase to LiteEngine (GetCollectionNames, CollectionExists, DropCollection, RenameCollection, Shrink). To access, use: db.Engine.GetCollectionNames().
New datafile version - no update yet