Upgrade Instructions

https://github.com/johnsusek/praeco#upgrading

Release Notes

ElastAlert Server

https://github.com/johnsusek/praeco/wiki/praeco-&-elastalert-server-docker-image-relations-table
https://github.com/johnsusek/elastalert-server/blob/master/DockerImageLog.md

• jertel/elastalert2 2.2.1 to 2.2.3

Praeco

New features

• Add PagerDuty support
• Add TencentSMS support
• Add HTTP POST 2 support

Other changes

• Kibana Discover 7.15 support 7d9a5c1
• Fix "Kibana Discover" settings typo #409 - @dohq dohq