Cannot view changelog after upgrade from v3.0.8 to v3.1.6 and postgresql upgrade from 9.5 to 10.0 #5980

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opened 2025-12-29 19:35:07 +01:00 by adam · 0 comments
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Originally created by @michael-edobor on GitHub (Jan 20, 2022).

NetBox version

v3.1.6

Python version

3.9

Steps to Reproduce

  1. Upon sign-in on Netbox
  2. Click on the 'Change Log' https://{my_domain_name}/extras/changelog/

Expected Behavior

I should be able to view all changelogs as I could before the upgrade. It was working before my upgrade.

Observed Behavior

An AttributeError is raised.

<class 'AttributeError'>

'NoneType' object has no attribute '_base_manager'

Python version: 3.9.4
NetBox version: 3.1.6
Screen Shot 2022-01-20 at 18 14 54

Originally created by @michael-edobor on GitHub (Jan 20, 2022). ### NetBox version v3.1.6 ### Python version 3.9 ### Steps to Reproduce 1. Upon sign-in on Netbox 2. Click on the 'Change Log' `https://{my_domain_name}/extras/changelog/` ### Expected Behavior I should be able to view all changelogs as I could before the upgrade. It was working before my upgrade. ### Observed Behavior An AttributeError is raised. <class 'AttributeError'> 'NoneType' object has no attribute '_base_manager' Python version: 3.9.4 NetBox version: 3.1.6 <img width="894" alt="Screen Shot 2022-01-20 at 18 14 54" src="https://user-images.githubusercontent.com/97886385/150388549-52379c20-f9d1-4a0c-b32a-fb00324a7a80.png">
adam added the type: bug label 2025-12-29 19:35:07 +01:00
adam closed this issue 2025-12-29 19:35:07 +01:00
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Reference: starred/netbox#5980