Cisco Cisco IOS Software Release 15.0(1)M

Cisco IOS Release 15.0(1)M integrates a portfolio of over 2000 key capabilities that span multiple 
technology areas, including security, voice, Multiprotocol Label Switching (MPLS), IP services, and 
embedded management. Key highlights of Cisco IOS Release 15.0(1)M include the following:

Feature inheritance from Cisco IOS Releases 12.4T and 12.4 Mainline.

Rebuilds of Cisco IOS Release 15.0(1)M.

AppleTalk Phase I and II and Service Selection Gateway (SSG) features are not supported in Cisco IOS 
Release 15.0(1)M and later releases. In addition, several Cisco hardware platforms ended support on 
Cisco IOS Release 12.4(15)T and Cisco IOS Release 12.4 Mainline. These platforms will not be 
supported in Cisco IOS Release 15.0(1)M and later releases. See the following bulletin for more 
information:

 

See the 

 for important information about Cisco IOS 

Release 15.0M.

These release notes support Cisco IOS Release 15.0M. They are updated to describe new memory 
requirements, hardware support, software platform deferrals, and related documents. 

For a list of the software caveats that apply to Cisco IOS Release 15.0M, see the 

. This section is updated for every maintenance release.

We recommend that you view the field notices for this release to see if your software or hardware 
platforms are affected. If you have an account on Cisco.com, you can find field notices at 

. If you do not have a Cisco.com login 

account, you can find field notices at