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Upgrade Basic Load Balancer without Upgrading AKS

Pranil Bhilare 20 Reputation points
2025-07-18T12:05:40.6733333+00:00

I have a load balancer internally used in an AKS. The AKS Version is 1.23. Now i need to Upgrade Load Balancer from Basic to Standard due to the retirement.

Upgrading from Basic Load Balancer on AKS - Azure Kubernetes Service | Microsoft Learn

This documentation says I need AKS Version 1.27 atleast to upgrade. Due to certain reasons, we don't want to upgrade our AKS, So I wanted to know if its possible to upgrade Load Balancer without touching the AKS.

Thanks!

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

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Answer accepted by question author

Akram Kathimi 2,001 Reputation points Microsoft Employee
2025-07-18T13:12:31.73+00:00

Hi @Pranil Bhilare

AKS version 1.23 is out of support. It is actually very old (end of life April 2023). We strongly recommend upgrading to a supported version.

Going to your question, unfortunately it's not possible to upgrade the load balancer if your cluster does not meet the requirement (1.27).

Please Accept the answer if the information helped you. This will help us and others in the community as well.

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