Cisco XR 12000 Series Router Release Notes - Cisco Systems

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Release 4.2
- Release Notes for Cisco XR 12000 Series Router for Cisco IOS XR Software Release 4.2
  23/Dec/2011
Release 4.1
Release 4.0
Release 3.9
Release 3.8
- Release Notes for Cisco IOS XR Release 3.8.1
  12/Apr/2012
- Release Notes for Cisco IOS XR Release 3.8.0
  12/Apr/2012
- Release Notes for Cisco IOS XR Software Release 3.8.2
  12/Apr/2012
- Release Notes for Cisco IOS XR Software Release 3.8.4
  12/Apr/2012
Release 3.7
- Release Notes for Cisco IOS XR Software Release 3.7
  06/Oct/2008
Release 3.6
- Release Notes for Cisco IOS XR Software Release 3.6
  09/Oct/2008
Release 3.5
- Release Notes for Cisco IOS XR Software Release 3.5.3
  25/Mar/2008
- Release Notes for Cisco IOS XR Software Release 3.5.2
  25/Mar/2008
Release 3.4
- Release Notes for Cisco IOS XR Software Release 3.4.3
  27/Mar/2008
- Release Notes for Cisco IOS XR Software Release 3.4
  27/Mar/2008
- Release Notes for Cisco IOS XR Software Release 3.4.2
  27/Mar/2008
- Release Notes for Cisco IOS XR Software Release 3.4.1
  27/Mar/2008
Release 3.3
- Release Notes for Cisco IOS XR Software Release 3.3.3
  28/Mar/2008
- Release Notes for Cisco IOS XR Software Release 3.3.2
  28/Mar/2008
- Release Notes for Cisco IOS XR Software Release 3.3.1
  28/Mar/2008
- Release Notes for Cisco IOS XR Software Release 3.3
  28/Mar/2008
Release 3.2
- Release Notes for Cisco IOS XR Software Release 3.2.6
  03/Aug/2007
- Release Notes for Cisco IOS XR Software Release 3.2.4
  03/Aug/2007
- Release Notes for Cisco IOS XR Software Release 3.2.3
  03/Aug/2007
- Release Notes for Cisco IOS XR Software Release 3.2.1
  07/Sep/2005
Support Documents
- Accessing Cisco IOS XR Software Release Notes
  23/Jul/2008