Zabbix Proxy problems

[yearblade]

Zabbix Server :

7.0.0beta2

Zabbix Proxy 7.0.0
245720241206:215419.850 received configuration data from server at "xx.xx.xx.xx", datalen 15213
245720241206:215419.851 cannot process received configuration data from server at "xx.xx.xx.xx": missing field "config.timeout_browser"

[cyber]

Why installing such versions? v7 latest is 7.0.6 ... why bother with rc-s and 0.0 versions...?