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(cvs.info)Revision numbers

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Revision numbers
================

   Each version of a file has a unique "revision number".  Revision
numbers look like `1.1', `1.2', `1.3.2.2' or even `1.3.2.2.4.5'.  A
revision number always has an even number of period-separated decimal
integers.  By default revision 1.1 is the first revision of a file.
Each successive revision is given a new number by increasing the
rightmost number by one.  The following figure displays a few
revisions, with newer revisions to the right.

            +-----+    +-----+    +-----+    +-----+    +-----+
            ! 1.1 !----! 1.2 !----! 1.3 !----! 1.4 !----! 1.5 !
            +-----+    +-----+    +-----+    +-----+    +-----+

   It is also possible to end up with numbers containing more than one
period, for example `1.3.2.2'.  Such revisions represent revisions on
branches (Note: Branching and merging); such revision numbers are
explained in detail in Note: Branches and revisions.