Those are goldie oldies, i can give you some approximate days as to when they had appeared on CCO.
ps. this is the ios-xr forum, the releases from you are "regular" IOS.
| IOS Version | License Type | Release date |
| 12.3(14)T5 | BASIC-IP6|FIREWALL 2|PLUS3DES | Oct-2005 |
| 12.4(2)T1 | BASIC-IP6|FIREWALL 2|PLUS 3DES | Aug-2005 |
| 12.4(22) | YB UNKNOWN | Jan-2009 |
| 12.4(3) | BASIC-IP6|FIREWALL 2|PLUS 3DES | July 2005 |
| 12.4(3a) | IP|FIREWALL 2 PLUS 3DES | Sept-2005 |
| 12.4(4)T | IP|FIREWALL|VOICE|PLUS|SSH|3DES | Oct-2005 |
| 12.4(6)T3 | IP|FIREWALL|VOICE|PLUS|SSH|3DES | July 2006 |
| 12.4(9) | IP|FIREWALL|3DES | N/A |
| 12.4(9)T1 | IP|FIREWALL|3DES | Aug 2006 |
| 12.4(9)T2 | IP|FIREWALL|3DES | Nov 2006 |
Out of curiosity, why is that of interest?
xander
