Nutanix has released a new version of their AOS 5.20, this release is a LTS release. AOS 5.20 is a long-term supported (LTS) release that builds upon a mature and proven AOS codebase that contains the new and updated features from the following AOS 5.19 (short-term supported (STS)) releases since the previous LTS release and the bug fixes from all the releases in the AOS 5.19 branch.

The AOS 5.20 Software Bundle includes these updates:

• AOS 5.20
• AHV-20201105.2030
• Foundation 4.6.2
• NCC 4.0.1
• NGT 2.1.2

To determine your cluster’s current release type (LTS or STS) from the nCLI command line.
Run: ncli –version

• Is LTS: true indicates an LTS release.
• Is LTS: false indicates an STS release.

To learn more about the product releases click here support portal.

Whats new in AOS 5.20

AHV-Management

• Resolved an issue where after an AOS upgrade to 5.19.1 and later releases, you are unable to use Prism Central to manage VMs created in AOS 5.15.x.
• Resolved an issue where saving the VM configuration boot order set to network interface in the Prism UI resets the guest VM boot order to default.

Data Protection

• Resolved an issue where no application consistent groups are available after crash consistent snapshots are taken during failover to Xi.

Infrastructure / Services

• Column name validation added to resolve an issue where silent disk or network corruption results in corruption of the stats and Pithos column family leading to cluster-wide degradation.
• Resolved an issue where pre-upgrade checks fail to progress due to incorrect handling of exceptions.
• Resolved an issue where during attempts to upgrade to Hyper-V 2019 through the web console Upgrade Software page, the page did not allow you to select the Hyper-V SKU type leading to the upgrade operation to either stall or install Hyper-V Datacenter Core incorrectly.

Linux Kernel

• Updated Linux Kernel to kernel version 3.10.0-1160.24.1.el7 that includes a fix for a kernel panic issue.
• The latest kernel update resolves an issue where the mdadm raid value shows unrealistic numbers.

Networking

• The OVS rules limit increased to 32768.
• The NSX-T manager version v3.1 is now qualified on AOS 5.20

Security-AOS

• New certificate regeneration script added to resolve an issue where attempts to restart the cluster fail due to an expired encryption certificate.
• The ctrl + alt + del option is not displayed in the GUI to avoid its usage while PC is in middle of first-boot-after-upgrade script as it might result in the PC to restart and break PC permanently.