Infinispan subsystem changes between EAP 7.3 and EAP 7.4

Issue

Post the migration from EAP 7.3.9 to 7.4.2 there is change in infinispan 9.4 to 11 where object-memory changed to heap-memory.

EAP 7.3 configuration:

<subsystem xmlns="urn:jboss:domain:infinispan:9.0">
            <cache-container name="web" default-cache="dist" module="org.wildfly.clustering.web.infinispan">
...
<cache-container name="hibernate" module="org.infinispan.hibernate-cache">
<transport lock-timeout="60000"/>
<local-cache name="local-query">
<object-memory size="10000"/> <!--- object memory size -->
<expiration max-idle="100000"/>
</local-cache>
<invalidation-cache name="entity">
<object-memory size="10000"/> <!--- object memory size -->
<expiration max-idle="100000"/>
</invalidation-cache>
<replicated-cache name="timestamps"/>
</cache-container>

EAP 7.4 configuration:

<subsystem xmlns="urn:jboss:domain:infinispan:12.0">
   <cache-container name="ejb" default-cache="dist" aliases="sfsb" modules="org.wildfly.clustering.ejb.infinispan">
...
<cache-container name="hibernate" modules="org.infinispan.hibernate-cache">
<transport lock-timeout="60000"/>
<local-cache name="local-query">
<heap-memory size="10000"/> <!--- heap-memory size -->
<expiration max-idle="100000"/>
</local-cache>
...
<invalidation-cache name="entity">
<heap-memory size="10000"/> <!--- heap-memory size -->
<expiration max-idle="100000"/>
</invalidation-cache>
<replicated-cache name="timestamps"/>
</cache-container>

[issue in EAP 7.4 - object-memory]

OPVDX001: Validation error in standalone-full-ha.xml ---------------------------
|
|  395: <transport lock-timeout="60000"/>
|  396: <local-cache name="local-query">
|  397:     <object-memory size="10000"/>
|           ^^^^ 'object-memory' isn't an allowed element here
|                
|                Elements allowed here are: 
|                  binary-keyed-jdbc-store  locking                  
|                  expiration               mixed-keyed-jdbc-store   
|                  file-store               off-heap-memory          
|                  heap-memory              remote-store             
|                  hotrod-store             store                    
|                  jdbc-store               transaction              
|
|  398:     <expiration max-idle="100000"/>
|  399: </local-cache>
|  400: <local-cache name="pending-puts">
|
| The primary underlying error message was:
| > ParseError at [row,col]:[397,21]
| > Message: WFLYCTL0198: Unexpected element
| >   '{urn:jboss:domain:infinispan:12.0}object-memory' encountered

Queries:
- what is the difference?
- should I configure the values differently?
- what does heap-memory mean? Is the memory in MB?