+++
date = "2015-03-17T15:36:56Z"
title = "index"
type = "index"
+++

## MongoDB Java Driver Documentation

Welcome to the MongoDB Java driver documentation hub for the 3.6 driver release.


### What's New in 3.6

For key new features of 3.6, see [What's New]({{< relref "whats-new.md" >}}).

### Upgrade

To upgrade, refer to the [Upgrade Considerations]({{< relref "upgrading.md" >}}) documentation.

### MongoDB Driver

For the synchronous MongoDB Driver, see [MongoDB Driver section]({{< relref "driver/index.md" >}}).

### MongoDB Async Driver

For the new asynchronous MongoDB Async Driver, the [MongoDB Async Driver section]({{< relref "driver-async/index.md" >}}).

### BSON Library

The [BSON]({{< relref "bson/index.md">}}) library comprehensively supports the BSON spec, the data storage and network transfer format that MongoDB uses for
“documents".  The [reference guide]({{< relref "bson/index.md">}}) provides information about working with [Documents]({{< relref "bson/documents.md">}}),
how to use [Codecs]({{< relref "bson/codecs.md">}}) and [Extended JSON]({{< relref "bson/extended-json.md">}}) support.
