The upgrade manual has a section about updating templates:
There is even a blog entry:
https://blog.zabbix.com/keeping-your...to-date/16412/
But it is not possible to update templates in Zabbix 6 if previously those templates were linked to other templates (Eg. with some SNMP items):
This is a very important issue as everybody need to update to Zabbix6 sooner or later. Fixing it should be given a higher priority.
There is even a blog entry:
https://blog.zabbix.com/keeping-your...to-date/16412/
But it is not possible to update templates in Zabbix 6 if previously those templates were linked to other templates (Eg. with some SNMP items):
Item with key "icmpping" already exists on "Linux by SNMP".
This is a very important issue as everybody need to update to Zabbix6 sooner or later. Fixing it should be given a higher priority.