Method in CommandContextUtil

hi.
I plan to customize a new Command class like InjectParallelUserTaskCmd,but i notice that in my development environment, there is no method of getActivityInstanceEntityManager in the CommandContextUtil that i found that it in flowable6.4.0 in the github.
my version in pom.xml is like below,is there anything i got wrong?

org.flowable
flowable-spring-boot-starter
6.4.0

thanks.

Hi,

The ActivityInstanceEntityManager was introduced after Flowable 6.4.0 was release and is available on the Github master version of Flowable.

Best regards,

Tijs