6.8.10 Release

[jmlrt]

This PR prepare 6.8 branch for 6.8.10 release:

• bump chart and Docker images version from 6.8.10-SNAPSHOT to 6.8.10
• remove notices on README that this is a development branch and development branch specific install instructions

Note

• remove notices on README that this is a development branch and development branch specific install instructions

This is required because released Helm charts will be packaged from this PR commit including the README files that will be available inside the chart packages and in Helm Hub pages (example: Elasticsearch chart page).

This change will be reverted in the next PR after release when we will bump 6.8 branch to 6.8.11-SNAPSHOT version.

[mgreau]

LGTM

[jmlrt]

6.8.10 Release changes (to add to GitHub release and changelog):

• 6.8.10 as the default stack version
• K8S 1.16 support in #635 @jmlrt

Elasticsearch

PR	Author	Title
#596	domgoodwin	Elasticsearch secret mount mode
#638	@fatmcgav	Fix issue with readinessProbe causing outages
#639	@coolbaluk	Fix values links in examples/multi/README.md

Kibana

PR	Author	Title
#555	@ramrodo	Add extensible label support on Kibana
#637	@maxkochubey	String/YAML conditions for .Values.{extraContainers,extraInitContainers}

Metricbeat

PR	Author	Title
#622	@jmlrt	Fix deployment upgrade by removing chart label from .spec.selector.matchLabels
#624	@jmlrt	Use deprecated kube-state-metrics-metricbeat.yml when existing
#634	@MaxRink	Fix configChecksum not being set