I was using ELK 6.6.1 stack in k8s environment (having some index patterns saved in kibana index - .kibana_1) and then upgraded to 7.0.1 (oss) stack. Due to this, the saved objects got migrated to .kibana_2.
Some new index patterns were then created & saved in 7.0.1 too.
Now, I have upgraded to 7.8.0 stack, which has migrated the saved objects to a new index .kibana_3.
$ curl https://10.254.97.161:9200/_cat/indices?v -k -uadmin:admin | grep kibana
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 2337 100 2337 0 0 12867 0 --:--:-- --:--:-- --:--:-- 12840
green open .kibana_2 wwMZtDlESc65GXw5idkmHA 1 0 5 1 24.1kb 24.1kb
green open .kibana_1 LRIdE8auTKqUOHoQuubK7Q 1 0 3 0 21.5kb 21.5kb
green open .kibana_3 DpjVMn2FQoSITalOPbzY5Q 1 0 14 1 47.1kb 47.1kb
$ curl https://10.254.97.161:9200/_cat/aliases?v -k -uadmin:admin
alias index filter routing.index routing.search is_write_index
.kibana .kibana_3 - - - -
Now, upon logging into kibana (7.8.0) UI, under saved objects at http://ip:5601/app/kibana#/management/kibana/objects, apart from the index-patterns created by me previously, I can also see 3 additional objects as - Advanced Settings [version]
Can someone help me understand the use of these saved objects here because the advanced settings for kibana can be modified at /app/kibana#/management/kibana/settings directly.
Also, is it right to have these additional objects of previous versions too (ex 6.6.1, 7.0.1 in my case) and what would be the impact of modifying/deleting these objects here?