<view:view xmlns:view="http://www.alfresco.org/view/repository/1.0"        
           xmlns:ver2="http://www.alfresco.org/model/versionstore/2.0">

    <view:reference view:pathref="/">
        <!-- Apply All access to Everyone on root node of version2 store -->
        <view:acl>
           <view:ace view:access="ALLOWED">
              <view:authority>GROUP_EVERYONE</view:authority>
              <view:permission>All</view:permission>
           </view:ace>
        </view:acl>
        <ver2:versionStoreRoot/>
    </view:reference>
               
</view:view>