Does RQM-STAX Integration need some tweeks when RQM 3.0.1.3 is upgraded to RQM 4.0.1?

Hi

Our project area is  currently on RQM 3.0.1.3 with RQM-STAX integration. We are planning to upgrade the RQM Server to 4.0.1?
In that case will our RQM-STAX Integration need some tweeks?
what precautions shall we take so that our framework remains in a working state even after the RQM Server, CLM is migrated/upgraded?


Also this is the  "facade.xml" we are using.

=======================================
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE stax SYSTEM "stax.dtd">
<stax>
    <defaultcall function="myDefaultTask"/>

    <function name="myDefaultTask" scope="local">
        <function-prolog>DefaultTask</function-prolog>

        <function-epilog>
            This is a description of My Default Task.
        </function-epilog>
        <function-list-args>
            <function-required-arg name="target">The target machine</function-required-arg>
            <function-required-arg name="STAXJobXMLMachine">STAXJobXMLMachine</function-required-arg>
            <function-required-arg name="file">file</function-required-arg>
            <function-optional-arg name="arg1" default="'default1'">The first arg description</function-optional-arg>
        </function-list-args>

        <sequence>

            <!--<message>'Found system name : %s' % target</message> -->
            <!-- Import and invoke the legacy task -->
            <import machine="STAXJobXMLMachine" file="file">
   <import-include>['MainFunction']</import-include>
            </import>
   <call function="'MainFunction'">[target,arg1]</call>
            <return>0</return>

        </sequence>
    </function>
</stax>

=========================================
 Under this I'm trying to call the MainFunction for my test suite. Now, this main function internally calls many other functions. So after the upgrade of RQM, shall i be importing all those functions as well?

something like :
            <!--<message>'Found system name : %s' % target</message> -->
            <!-- Import and invoke the legacy task -->
            <import machine="STAXJobXMLMachine" file="file">
   <import-include>['MainFunction','Init','SystemData','CopyCommonDirectories','Copy','ExecuteTest','CopyDirectory','CopyFile','CreateDirectory','GetArchUnix','GetArchWindows','CopyJREs','GetOSDir','Copy64BitJRE','CopyAndExtract','FullUnixPermission','CopyRec']</import-include>
            </import>
   <call function="'MainFunction'">[target,arg1]</call>
            <return>0</return>

        </sequence>
    </function>


Please advice.

Thanks in advance