
***ROM Update Required!***

All yl and zl switches running K.13.55 system software or earlier will have the BootROM updated by this new version of system software. This software download will boot switch twice, first to update the BootROM to version K.12.17, and then to load the updated system software. Following file copy to the switch flash and initiation of the reload, no additional user intervention is needed. Do not interrupt power to the switch during this important update. Please see the release notes for additional information.
 
***Configuration Alert***

It is important that you update to K.13.xx from a configuration that has not been previously converted from a pre-K.13.xx format and subsequently rolled back. If you have previously updated to K.13.xx and rolled back to K.12.xx to workaround an issue, you should load a saved K.12.xx configuration to the switch and boot to it prior to updating to K.13 again. 

K.13.03 -> K.13.45 no known issues
K.11.xx - K.12.xx -> K.13.09 no known issues IF this is the initial update to K.13.xx
K.12.xx -> K.13.03 -> K.12.xx: customer should TFTP a K.12.xx config to the switch and boot to it prior to updating to K.13.xx for a second time. 

Archive Pre-K.13.xx Configuration Files before updating! A configuration file saved under version K.13.xx software is not backwards-compatible with previous software versions. 

Please see "Best Practices for Major Software Updates" in the Release Notes for more information.

***PIM-SM Users Please Note***

PIM-SM users should make sure ProCurve switches that run K software should all be on pre-K.13.21 or post-K.13.21 versions 
of software due to a bug fix in K.13.21 that changes the way a rendezvous point (RP) is chosen.


