Steps to reproduce:

1. Run the latest alpha and try to check for updates.

Actual behavior:

The following error dialog appears:
Error checking for update.
Make sure you are connected to the internet and try again.

The following error is logged:
Error checking for update
Traceback (most recent call last):
File "updateCheck.pyc", line 256, in checkForUpdate
File "updateCheck.pyc", line 148, in parseUpdateCheckResponse
ValueError: Missing required key(s): version, apiVersion, launcherUrl

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "updateCheck.pyc", line 378, in _bg
File "updateCheck.pyc", line 258, in checkForUpdate
RuntimeError: The update response is invalid. Ensure the update mirror returns a properly formatted response.

Expected behavior:

A successful update check is performed.

NVDA logs, crash dumps and other attachments:

NVDA update check fail.txt

System configuration

NVDA installed/portable/running from source:

Portable

NVDA version:

alpha-35622,495dee36 (2025.1.0.35622)

Windows version:

Windows 11 24H2 (AMD64) build 26100.3194

Name and version of other software in use when reproducing the issue:

None

Other information about your system:

None

Other questions

Does the issue still occur after restarting your computer?

Yes

Have you tried any other versions of NVDA? If so, please report their behaviors.

Works as expected with alpha-35536,b6897d11 (2025.1.0.35536)

If NVDA add-ons are disabled, is your problem still occurring?

Yes

Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?

Yes