Here are examples:
r6:~$ show ip route 1.1.1.1 Possible completions: <Enter> Execute the current command longer-prefixes Show longer prefixes of routes for specified IP address or prefix r6:~$ show ip route 1.1.1.1 longer-prefixes % Unknown command: show ip route 1.1.1.1 longer-prefixes
same for ipv6
r6:~$ show ipv6 route 2600:: Possible completions: <Enter> Execute the current command longer-prefixes Show longer prefixes of routes for given address or prefix r6:~$ show ipv6 route 2600:: longer-prefixes % Unknown command: show ipv6 route 2600:: longer-prefixes
and the version
Version: VyOS 1.3-rolling-202105011026 Release Train: equuleus Built by: [email protected] Built on: Sun 02 May 2021 03:42 UTC Build UUID: 3edf864c-5285-41d4-a7a8-edb2a42c4975 Build Commit ID: 4174b1309a64f8 Architecture: x86_64 Boot via: installed image System type: KVM guest Hardware vendor: QEMU Hardware model: Standard PC (Q35 + ICH9, 2009) Hardware S/N: Hardware UUID: 4e4038df-97f2-4dea-8a4b-c44a3f0ff46a Copyright: VyOS maintainers and contributors