Cisco website says that I have a few options for IOS upgrade. See screenshot. Does this mean that IOS 12 and IOS 15 are both valid options for upgrade?
Here is my current IOS
switch#sh version
Cisco IOS Software, C3560 Software (C3560-IPSERVICESK9-M), Version 12.2(55)SE12, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2017 by Cisco Systems, Inc.
Compiled Thu 28-Sep-17 02:04 by prod_rel_team
Image text-base: 0x01000000, data-base: 0x02F00000
ROM: Bootstrap program is C3560 boot loader
BOOTLDR: C3560 Boot Loader (C3560-HBOOT-M) Version 12.2(44)SE5, RELEASE SOFTWARE (fc1)
switch uptime is 6 weeks, 1 day, 21 hours, 15 minutes
System returned to ROM by power-on
System restarted at 16:50:42 CST Sat Nov 23 2019
System image file is "flash:c3560-ipservicesk9-mz.122-55.SE12.bin"
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.
A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
If you require further assistance please contact us by sending email to
export@cisco.com.
cisco WS-C3560G-24PS (PowerPC405) processor (revision L0) with 131072K bytes of memory.
Processor board ID FOC1541Z1MB
Last reset from power-on
2 Virtual Ethernet interfaces
28 Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.
512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address : 00:08:30:F0:4D:80
Motherboard assembly number : 73-10213-07
Power supply part number : 341-0108-04
Motherboard serial number : FOC15364NMM
Power supply serial number : DCA1528A4JF
Model revision number : L0
Motherboard revision number : A0
Model number : WS-C3560G-24PS-E
System serial number : FOC1541Z1MB
Top Assembly Part Number : 800-27478-04
Top Assembly Revision Number : D0
Version ID : V08
CLEI Code Number : COMBB10BRA
Hardware Board Revision Number : 0x09
Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 28 WS-C3560G-24PS 12.2(55)SE12 C3560-IPSERVICESK9-M
Configuration register is 0xF
