v1.7.0

New Features

• Support deploying and managing TLS enabled TiDB cluster with TiFlash nodes (#1594, @nexustar)
• Support rendering template for local deployment with vairables in tiup-cluster and tiup-dm (#1596, @makocchi-git)
• [experimental] Support optionally enable next-generation monitor (ng-monitor) for latest TiDB releases (#1601, @nexustar)
• [experimental] Support JSON output format for tiup-cluster and tiup-dm (#1617, @AstroProfundis)

Fixes

• Remove warning about tag argument for tiup-playground (#1606, @nexustar)
• Set --external-url for AlertManager in tiup-cluster (#1608, @reAsOn2010)
• Fix auto detecting of system arch fail in certain circumstances (#1610, @AstroProfundis)

Improvements

• Support getting cluster ID from PD in pdapi package (#1573 #1574, @nexustar; #1580, @AstroProfundis)
• Accurately get status of TiFlash nodes during operations (#1600, @AstroProfundis)