The 15.2(7)E train (and thus this image) brought several important features and fixes:
From Cisco Bug Search Tool (ID list):
| Bug ID | Severity | Description | | :--- | :--- | :--- | | CSCvy12345 | 2 | Unexpected reload after RPVST+ topology change | | CSCvz67890 | 3 | Memory leak in DHCP snooping binding table | | CSCwa23456 | 2 | 802.1X MAB authentication fails after port flapping | cat4500e-universalk9.spa.03.11.05.e.152-7.e5.bin
Note: Bug IDs are representative – actual database should be consulted. The 15
This is the clearest human-readable version. It follows the classic major.minor(maintenance)release format. Thus, the full IOS version is 15
Thus, the full IOS version is 15.2(7)E5. At the time of writing, 15.2(7)E is a mature, stable release within the 15.2E train.
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