# 8 Upgrade notes for 2.0.1

-   In 2.0.0, XML export used a mix of short and long forms for empty
    tags (both *<tag></tag>* and *<tag/>*). Since
    2.0.1, all empty tags use the empty form (*<tag/>*).
-   Updating Zabbix agent from 2.0.0 to 2.0.1 on Windows systems might
    result in historical data loss. See
    [ZBX-5094](https://support.zabbix.com/browse/ZBX-5094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=59727#comment-59727)
    for more details.