For Developers‎ > ‎  Version Numbers   Chromium version numbers
consist of 4 parts: MAJOR.MINOR.BUILD.PATCH.    • MAJOR and
MINOR may get updated with any significant Google Chrome release
(Beta or Stable update). MAJOR must get updated for any
backwards incompatible user data change (since this data
survives updates).   • BUILD must get updated whenever a release
candidate is built from the current trunk (at least weekly for
Dev channel release candidates). The BUILD number is an ever-
increasing number representing a point in time of the Chromium
trunk.   • PATCH must get updated whenever a release candidate
is built from the BUILD branch.  MAJOR and MINOR track updates
to the Google Chrome stable channel. In this sense, they reflect
a scheduling or marketing decision rather than anything about
the code itself. These numbers are generally only significant
for tracking milestones. In the event that we get a significant
release vehicle for Chromium code other than Google Chrome, we
can revisit the versioning s