Where can I download Avast 4.9?
By the way the latest is 4.8. If you use avast then whenever 4.9 will be released by its developer, the same cane be updated either via your programme update feature or through the avast website
Avast Antivirus 4.9 is not available anymore because nowadays, the antivirus reached to 9.0 version. You can download and install this version from the developer web page.