To view your Windows Defender Protection History, open Windows Security, and select the Protection History icon on its Home tab. There you will see the Windows Defender history. Related ...

Open Windows 10 Settings ( Win + I ... check for the definition update using Windows Update. Read: How to update Windows Defender definitions using Windows PowerShell. The last section is also ...

"It is not feasible to demand not-for-profit hobby [free open-source software] projects ... their applications or add exceptions in Windows Defender to maintain functionality.