About "Rolling upgrades" manual

[snuffkin (Satoyuki Tsukano)]

I have a question abont "Rolling upgrades" manual of Elasticsearch Reference.

In version 6.0+, "cluster.routing.allocation.enable" is set to "none" with "persistent".
https://www.elastic.co/guide/en/elasticsearch/reference/6.2/rolling-upgrades.html

But in version 5.6, "cluster.routing.allocation.enable" is set to "none" with "transient".
https://www.elastic.co/guide/en/elasticsearch/reference/5.6/rolling-upgrades.html

Does anyone know why this description was changed?
I think version 5.6 manual is correct.

[johtani (Jun Ohtani)]

See : https://github.com/elastic/elasticsearch/issues/27860

[snuffkin (Satoyuki Tsukano)]

Thanks!