: Many of these files are modified "trial" or "free" certificates where the expiration date has been artificially extended in the file metadata to dates like 2038 or 2050 to bypass renewal prompts. Discontinued Product
Downloading and applying an unofficial license file from a non-Avast source carries severe risks: avast pro antivirus license file till 2050
If a “till 2050” license is non-negotiable for you, consider security products that truly offer lifetime licenses: : Many of these files are modified "trial"