Springboot + spring data Mongo

I'm sure yes. These are the news in the 1.9:

• The following annotations have been enabled to build own, composed annotations: @Document, @Id, @Field, @Indexed, @CompoundIndex, @GeoSpatialIndexed, @TextIndexed, @Query, @Meta.

• Support for Projections in repository query methods.

• Support for Query by Example.

• Out-of-the-box support for java.util.Currency in object mapping.

• Add support for the bulk operations introduced in MongoDB 2.6.

• Upgrade to Querydsl 4.

• Assert compatibility with MongoDB 3.0 and MongoDB Java Driver 3.2 (see: MongoDB 3.0 Support).

You just exclude from spring-boot-starter-data-mongodb and overwritte it

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-mongodb</artifactId>
    <exclusions>
        <exclusion>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-mongodb</artifactId>
        </exclusion>
    </exclusions>
</dependency>
<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-mongodb</artifactId>
    <version>1.9.4.RELEASE</version>
</dependency>