Ability to add "tag" for the static routes.
set protocols static route 203.0.113.6/32 blackhole tag 666
In the FRR:
r5(config)# ip route 203.0.113.6/32 Null0 tag 666
One of the uses cases it easy to use in route-maps for blackholing (we allow match tags but we can't set tags for routes right now)
set policy route-map ISP01 rule 10 match tag 666 set policy route-map ISP01 rule 10 set community 111:666 set policy route-map ISP02 rule 10 match tag 666 set policy route-map ISP02 rule 10 set community 222:666