Hardcoded API Version "2025-01-01" Causes Failures with Future System Dates

[don-hicks]

Describe the bug

Azure CLI containerapp module fails with "InvalidApiVersionParameter" when system date is set to 2025. The core module has a hardcoded API version "2025-01-01" that is not valid. This affects all containerapp commands when using the core module (not extension) on systems with dates in 2025.

Related command

az containerapp list
az containerapp logs show
az containerapp show

Errors

ERROR: (InvalidApiVersionParameter) The api-version '2025-01-01' is invalid. The supported versions are '2025-04-01,2025-03-01,2024-10-01-preview,2024-11-01,2024-08-01,2024-07-01,2024-06-01-preview,2024-03-01,2023-07-01,2023-07-01-preview,2023-03-01-preview,2022-12-01,2022-11-01-preview,2022-09-01,2022-06-01,2022-05-01,2022-03-01-preview,2022-01-01,2021-04-01,2021-01-01,2020-10-01,2020-09-01,2020-08-01,2020-07-01,2020-06-01,2020-05-01,2020-01-01,2019-11-01,2019-10-01,2019-09-01,2019-08-01,2019-07-01,2019-06-01,2019-05-10,2019-05-01,2019-03-01,2018-11-01,2018-09-01,2018-08-01,2018-07-01,2018-06-01,2018-05-01,2018-02-01,2018-01-01,2017-12-01,2017-08-01,2017-06-01,2017-05-10,2017-05-01,2017-03-01,2016-09-01,2016-07-01,2016-06-01,2016-02-01,2015-11-01,2015-01-01,2014-04-01-preview,2014-04-01,2014-01-01,2013-03-01,2014-02-26,2014-04'.

Issue script & Debug output

# Reproduction script
#!/bin/bash
# Show system date (2025-09-26)
date

# Ensure core module is used (not extension)
az extension remove -n containerapp 2>/dev/null

# Try to list container apps
az containerapp list --resource-group "myresourcegroup" --debug 2>&1 | grep -A5 -B5 "api-version"

Debug output shows:

Request URL: https://management.azure.com/subscriptions/{subscription-id}/resourceGroups/myresourcegroup/providers/Microsoft.App/containerApps?api-version=2025-01-01
Response status: 400
Response headers: {...}
Response content: {"error":{"code":"InvalidApiVersionParameter","message":"The api-version '2025-01-01' is invalid..."}}

Expected behavior

Commands should execute successfully using a valid API version like "2024-03-01" instead of the hardcoded "2025-01-01".

Environment Summary

azure-cli                         2.77.0

core                              2.77.0
telemetry                          1.1.0

Dependencies:
msal                            1.31.0
azure-mgmt-resource             23.2.0

Python location '/opt/az/bin/python3'
Extensions directory '/home/glucose/.azure/cliextensions'

Python (Linux) 3.13.0 (main, Oct  8 2024, 01:04:00) [GCC 11.4.0]

Legal docs and information: aka.ms/AzureCliLegal

Additional context

The root cause is in /opt/az/lib/python3.13/site-packages/azure/cli/command_modules/containerapp/_clients.py line 19:

CURRENT_API_VERSION = "2025-01-01"

This hardcoded value is not a valid API version. The issue only affects the core module - when the containerapp extension is installed, it masks this bug.

Workaround:

sudo sed -i 's/CURRENT_API_VERSION = "2025-01-01"/CURRENT_API_VERSION = "2024-03-01"/' \
  /opt/az/lib/python3.13/site-packages/azure/cli/command_modules/containerapp/_clients.py

System Information:

• OS: Linux 6.6.87.2-microsoft-standard-WSL2
• System Date: 2025-09-26
• Python: 3.13

[azure-client-tools-bot-prd]

Hi @don-hicks,

2.64.0 is not the latest Azure CLI(2.77.0).

If you haven't already attempted to do so, please upgrade to the latest Azure CLI version by following https://learn.microsoft.com/en-us/cli/azure/update-azure-cli.

[yonzhan]

Thank you for opening this issue, we will look into it.

[don-hicks]

Yes, sorry, I put the wrong version in the initial report, it is the latest 2.77 where the bug has surfaced

[Greedygre]

Hi @don-hicks
Did you still occur this issue?
May I ask what is the Location that you got this issue?

[Greedygre]

Hi @don-hicks

After investigation, we found issue cause by the command run with --resource-group/-g with empty value, repro:

az containerapp list --resource-group "" --debug --query "[].name"

Can you specify a valid resource group name or without --resource-group/-g in the command?

Edit:

Here is the request we found for your request

https://management.azure.com:443/subscriptions/{sub-id}/resourceGroups/providers/Microsoft.App/containerApps?api-version=2025-01-01

There is no myresourcegroup shown in the URL, Can you check why the resource group value didn't set correctly?

Thanks