v0.18.0-beta3

• Reworked routing and added support for subnet router failover #1024
• Added an OIDC AllowGroups Configuration options and authorization check #1041
• Set db_ssl to false by default #1052
• Fix duplicate nodes due to incorrect implementation of the protocol #1058
• Report if a machine is online in CLI more accurately #1062
• Added config option for custom DNS records #1035
• Expire nodes based on OIDC token expiry #1067
• Remove ephemeral nodes on logout #1098