These are the tasks we'd like to do in H2 2021/H1 2022 or so. They're expected to be moved to specific release milestones first.

ACCEPTED:

• Postgres based Config Backend - Done
• Better clustering support - some improvements done, but overall the DB clusters is expected to be main focus of 2.3.x
• Access Control and RBAC (Role Based Access Control) - Done
• SSL for DB connections - Done
• Limits (response rate limiting, automatic throttling or quarantine of chatty clients) - Experimental
• DDNS tuning - Done

NOT IN THIS CYCLE:

• Hardening
  • Audit
• Better PD allocation (honoring client's hints regarding length)
• Sticky leases (assigned lease becomes reserved for whoever got it)
• remove cassandra
• Classification 2.0
  • many classes
  • class templates
  • better handling of large number of classes (match first)
• Relay (depends on business discussions)
• Docker images

Date is fake and is used only to sort milestones.