The running version is icinga2.5.4，I know that icinga2 has released many versions to fix bugs and add new features. therefore， i want to update icinga2 now. I have the following questions about upgrading.
Must I upgrade in this order， 2.6.0-》2.7.0-》2.8.0-》2.9.0-》2.10.0-》2.11.0？Perhaps，I can skip some of them or upgrade to 2.11 directly.
Where can I find the upgrade steps？I don’t know how to start . Should I install each icinga2 version of the dependency package and then install that version of icinga2？
Looking forward to your reply！Thanks in advance for your help!