I'm using 2.9.8, after I ftp'd the 2.9.12 files and rebooted I got these messages.
system package> pr
NAME VERSION BUILD-TIME UNINSTALL
0 hotspot 2.9.8 nov/15/2005 11:15:09 no
1 thinrouter-pcipc 2.9.8 nov/15/2005 11:17:01 no
2 routing 2.9.8 nov/15/2005 11:15:04 no
3 system 2.9.8 nov/15/2005 11:14:18 no
4 advanced-tools 2.9.8 nov/15/2005 11:14:30 no
5 ups 2.9.8 nov/15/2005 11:15:53 no
6 isdn 2.9.8 nov/15/2005 11:16:31 no
7 arlan 2.9.8 nov/15/2005 11:16:34 no
8 web-proxy 2.9.8 nov/15/2005 11:16:54 no
9 security 2.9.8 nov/15/2005 11:14:36 no
10 lcd 2.9.8 nov/15/2005 11:16:48 no
11 gps 2.9.8 nov/15/2005 11:15:55 no
12 ntp 2.9.8 nov/15/2005 11:15:51 no
13 ppp 2.9.8 nov/15/2005 11:15:00 no
14 radiolan 2.9.8 nov/15/2005 11:16:38 no
15 dhcp 2.9.8 nov/15/2005 11:14:39 no
16 synchronous 2.9.8 nov/15/2005 11:17:00 no
17 wireless 2.9.8 nov/15/2005 11:15:17 no
18 telephony 2.9.8 nov/15/2005 11:16:45 no
19 routerboard 2.9.8 nov/15/2005 11:16:10 no
system package> /log
log> pr
15:06:51 system,error license does not support new version of web-proxy-2.9.12
15:06:51 system,error license does not support new version of thinrouter-pcipc-2.9.12
15:06:51 system,error license does not support new version of system-2.9.12
15:06:51 system,error license does not support new version of synchronous-2.9.12
15:06:51 system,error license does not support new version of security-2.9.12
15:06:51 system,error license does not support new version of routing-2.9.12
15:06:51 system,error license does not support new version of radiolan-2.9.12
15:06:51 system,error license does not support new version of ppp-2.9.12
15:06:51 system,error license does not support new version of ntp-2.9.12
15:06:51 system,error license does not support new version of hotspot-2.9.12
15:06:51 system,error license does not support new version of gps-2.9.12
15:06:51 system,error license does not support new version of dhcp-2.9.12
15:06:51 system,error license does not support new version of advanced-tools-2.9.12
15:06:51 system,info router rebooted