Hi Everyone ,
Starting from Zabbix 4.4 there is new (and as for me not very nice) this - ZBP(Proxy) should always be the same major version as ZBS(server).
"Zabbix server and proxies must be of the same major version. Therefore, in a server-proxy setup, Zabbix server and all proxies have to be stopped and upgraded. Keeping proxies running during server upgrade no longer will bring any benefit as during proxy upgrade their old data will be discarded and no new data will be gathered until proxy configuration is synced with server."
According to it I've tried to find answer - is I'll update Proxy first and only then server - would it save me from missing data.
Starting from Zabbix 4.4 there is new (and as for me not very nice) this - ZBP(Proxy) should always be the same major version as ZBS(server).
"Zabbix server and proxies must be of the same major version. Therefore, in a server-proxy setup, Zabbix server and all proxies have to be stopped and upgraded. Keeping proxies running during server upgrade no longer will bring any benefit as during proxy upgrade their old data will be discarded and no new data will be gathered until proxy configuration is synced with server."
According to it I've tried to find answer - is I'll update Proxy first and only then server - would it save me from missing data.