First Published: September 2, 2025

Cisco UCS Manager Cross-Version Firmware Support, Release 6.0

The Cisco UCS Manager A bundle software (Cisco UCS Manager, Cisco NX-OS, IOM and FEX firmware) can be mixed with previous B or C bundle releases on the servers (host firmware [FW], BIOS, Cisco IMC, adapter FW and drivers).

Cisco UCS Equivalency Matrix for Cisco Intersight, Cisco IMC, and Cisco UCS Manager outlines the release timeline for Cisco Intersight, Cisco Integrated Management Controller (IMC), and Cisco UCS Manager (UCSM). It includes essential information such as the date each patch was posted, the specific patch version, and the platforms that are supported by each release. By referring to this matrix, you can identify the appropriate firmware and software versions required for your servers before migrating them to Cisco Intersight. This ensures that your server infrastructure remains supported and operates efficiently during and after the transition.

The following table lists the mixed A, B, and C bundle versions that are supported on Cisco UCS 6664, 6536, and 6400 series Fabric Interconnects:

Table 1. Mixed Cisco UCS Releases Supported on Cisco UCS 6664, 6536, and 6400 series Fabric Interconnects

Infrastructure Versions (A Bundles)

Host FW Versions (B or C Bundles)

4.0(1)

4.0(2)

4.0(4)

4.1(1)

4.1(2)

4.1(3)

4.2(1)

4.2(2)

4.2(3)

4.3(2)

4.3(3)

4.3(4)

4.3(5)

4.3(6)

6.0(1)

Note

 

In a setup equipped with Cisco UCS C240 M8 Server, C220 M8 Server, and UCS X210c M8 Compute Node, you cannot downgrade Infrastructure Version (A Bundle) or Host Firmware Version (C Bundle) to any release earlier than 4.3(6a).

In a setup equipped with Cisco UCS C245 M8 Server, you cannot downgrade Infrastructure Version (A Bundle) or Host Firmware Version (C Bundle) to any release earlier than 4.3(4b).

In a setup equipped with Cisco UCS X215c M8 Compute Node and Cisco UCS C225 M8 Server, you cannot downgrade Infrastructure Version (A Bundle) or Host Firmware Version (C Bundle) to any release earlier than 4.3(5a).

6.0(1)

—

—

—

—

—

—

—

—

—

—

—

—

—

—

6664, 6536, 6454, 64108

4.3(6)

—

—

—

—

—

—

—

—

—

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6664, 6536, 6454, 64108

4.3(5)

—

—

—

—

—

—

—

—

—

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6664, 6536, 6454, 64108

4.3(4)

—

—

—

—

—

—

—

—

—

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6664, 6536, 6454, 64108

4.3(3)

—

—

—

—

—

—

—

—

—

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6664, 6536, 6454, 64108

4.3(2)

—

—

—

—

—

—

—

—

—

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6664, 6536, 6454, 64108

4.2(3)

—

—

—

—

—

—

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6332, 6332-16UP, 6454, 64108, 6536

6664, 6536, 6454, 64108

4.2(2)

—

—

—

—

—

—

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

6332, 6332-16UP, 6454, 64108

6332, 6332-16UP, 6454, 64108

6332, 6332-16UP, 6454, 64108

6332, 6332-16UP, 6454, 64108

6332, 6332-16UP, 6454, 64108

—

4.2(1)

—

—

—

—

—

—

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

6332, 6332-16UP, 6454, 64108

6332, 6332-16UP, 6454, 64108

6332, 6332-16UP, 6454, 64108

6332, 6332-16UP, 6454, 64108

6332, 6332-16UP, 6454, 64108

—

4.1(3)

—

—

—

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

6332, 6332-16UP, 6454, 64108

6332, 6332-16UP, 6454, 64108

6332, 6332-16UP, 6454, 64108

6332, 6332-16UP, 6454, 64108

6332, 6332-16UP, 6454, 64108

—

4.1(2)

—

—

—

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

—

—

—

—

—

—

4.1(1)

—

—

—

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

6200, 6332, 6332-16UP, 6454, 64108

—

—

—

—

—

—

4.0(4)

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

—

—

—

—

—

—

4.0(2)

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

—

—

—

—

—

—

4.0(1)

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

6200, 6332, 6332-16UP, 6454

—

—

—

—

—

—

The following table lists the mixed A and B bundle versions that are supported on Cisco UCS X-Series Direct:

Table 2. Mixed Cisco UCS Releases Supported on Cisco UCS X-Series Direct

Host FW Versions (B Bundles)

Infrastructure Versions (A Bundles)

4.3(4)

4.3(5)

4.3(6)

6.0(1)

6.0(1)

—

—

—

UCSX-S9108-100G

4.3(6)

UCSX-S9108-100G

UCSX-S9108-100G

UCSX-S9108-100G

UCSX-S9108-100G

4.3(5)

UCSX-S9108-100G

UCSX-S9108-100G

UCSX-S9108-100G

UCSX-S9108-100G

4.3(4)

UCSX-S9108-100G

UCSX-S9108-100G

UCSX-S9108-100G

UCSX-S9108-100G

Note

 

In a setup equipped with Cisco UCS X210c M8 Compute Node, you cannot downgrade Infrastructure Version (A Bundle) or Host Firmware Version (B bundle) to any release earlier than 4.3(6a).

In a setup equipped with Cisco UCS X-Series Direct, you cannot downgrade Infrastructure Version (A Bundle) to any release earlier than 4.3(4b).


Important

If you implement cross-version firmware, you must ensure that the configurations for the Cisco UCS domain are supported by the firmware version on the server endpoints.