Today I updated Joomla to version 3.8.1 from from the 3.7.5 version. Update method I used was, downloading the upgrade zip and extract.
Result I got was a blank administration page (in blue) and blank web page.
However I was able to get the site up with following steps:
Note: Make sure to take web root and SQL backup before proceeding.
Step 1: Apply the 3.8.1 upgrade by unzipping the upgrade zip to web root. (You will see blank pages and blue admin page)
