Cat3k-caa-universalk9.spa.03.06.10.e.152-2.e10.bin ((new)) May 2026

Platform: Cisco Catalyst 3850 or 3650 Series Switches (often denoted by cat3k_caa or cat3k_caa_universalk9). Release Series: Cisco IOS XE 3.6.xE (Edison). Version: 3.6.10E (Edison). Equivalent IOS Version: 15.2(2)E10. Image Type: Universal (universalk9). Report Details

• Production network: Upgrade to 152-7.E10a immediately.
• Lab/Archival: Keep a copy of this image for historical debugging.
• Security audit: If this image appears on any asset report, flag it as "end-of-life software – critical risk."

Application Visibility: Utilizing Flexible NetFlow (FNF) to identify and prioritize business-critical traffic. ⚡ Resiliency cat3k-caa-universalk9.spa.03.06.10.e.152-2.e10.bin

• Maintaining a fleet of 3650/3850s still bound by operational constraints.
• Lab reproduction of legacy bugs.
• Before upgrading to 16.x (as an intermediate step from 03.03.x).

• show version → check DRAM (must be 4GB for 16.x, 8GB for 17.x)
• show file systems → check free flash (>1.5 GB recommended)

cat3k-caa

• cat3k: Stands for Catalyst 3000-series (specifically the 3560-X and 3750-X models, and in some contexts, the 2960-XR).
• caa: This denotes the internal architecture of the switch’s CPU. Unlike older Catalyst switches (which used "c3755e" or similar), "caa" refers to the Cisco Application Architecture—a modernized Linux-based foundation that replaced the classic IOS infrastructure.

What Does This Software Image Mean for My Network? Platform: Cisco Catalyst 3850 or 3650 Series Switches