Set Release Date and Effectivity using REST API v1

[Anonymous]

I'm using the v1 REST API to perform lifecycle transitions on items to set lifecycle state and revision.  I'm using the following PUT request:

https://{{tenant}}.{{AutodeskDomain}}/{{api}}/workspaces/57/items/9974/lifecycles/transitions/18

Here is the xml body that has the revision value with the 'release' attribute:

<item>
 <release>A</release>
</item>

This all works but I'm unable to specify the release data and effectivity date.  Does anybody know how to do this or is this a limitation?

Thanks,

Jeff