Boot loader versions can be different from the IOS and neednt match exactly. For ex: see the sh version output of an AP that has not been upgraded yet.
Cisco Internetwork Operating System Software
IOS (tm) C1100 Software (C1100-K9W7-M), Version 12.2(8)JA, EARLY DEPLOYMENT REL
ASE SOFTWARE (fc1)
TAC Support: http://www.cisco.com/tac
Copyright (c) 1986-2003 by cisco Systems, Inc.
Compiled Wed 12-Feb-03 15:22 by hqluong
Image text-base: 0x00003000, data-base: 0x00495088
ROM: Bootstrap program is C1100 boot loader
BOOTLDR: C1100 Boot Loader (C1100-BOOT-M) Version 12.2(4)JA, EARLY DEPLOYMENT R
LEASE SOFTWARE (fc1)
TestAP uptime is 13 weeks, 4 days, 2 hours, 21 minutes
System returned to ROM by power-on
System image file is "flash:/c1100-k9w7-mx.122-8.JA/c1100-k9w7-mx.122-8.JA"
Sankar Nair
UC Solutions Architect
Pacific Northwest | CDW
CCIE Collaboration #17135 Emeritus