Camel case format name "dateOptionalTime" is deprecated and will be removed in a future version of Elasticsearch. Use snake case name "date_optional_time" instead.

[adhyayan07]

As of now elastalert-create-index creates the index with old field type format "dateOptionalTime". I updated the mapping format for elastalert2 indices in my instance.
I don't know from which elasticsearch version they updated this field format, so I have no idea if updating this change in future elastalert2 release will impact old elasticsearch + elastalert2 installations.

[nsano-rururu]

We are planning to support elasticsearch 8.

[nsano-rururu]

Not an elastalert. elastalert 2.

[nsano-rururu]

I also know that the new version of elasticsearch-py will give a warning when creating an index.

[nsano-rururu]

#92

[adhyayan07]

Not an elastalert. elastalert 2.

Ah! yes, elastalert2.