Before going through these steps, make sure the needed protocol file definitions are in the tree. Check this README for more information.

They are typically downloaded from the devtools source

• Edit //java/src/org/openqa/selenium/devtools:versions.bzl to include the new version number (and possibly delete the old one, we tend to support only the last 3 versions)
• Copy the most recent //java/src/org/openqa/selenium/devtools/vXX to //java/src/org/openqa/selenium/devtools/vXX+1.
• Do a search and replace in that directory, converting XX to XX+1
• Add //java/src/org/openqa/selenium/devtools/vXX:vXX.publish version to the Rakefile.
• Compile the code and fix the places where signatures have changed.