Chromium Home page
First go to this url:
You'll see a single number displayed, for example:
Remember this number.
Click on the url below and replace the xxxx with the number from above:
Paste the url into your address bar, change the xxxxx to the number you saw on the "LATEST" page from step #1.
Open the web page using the completed url and you'll see a list of files. You want to download the file called:
After the installer runs, you'll have the latest update of chromium installed.