Timeline of the Linux Kernel releases.
In gray are depicted the development branches and the small ticks
from the the 2.6 branch are the minor releases. The minor that
sticks out is the 2.6.16. The data was extracted from the
timestamps of the files served by kernel.org
. Tho dates,
for 2.1.25 and 2.1.26 were wrong and were manually adjusted. The
only omitted releases are the 2.2.0pre1 to 2.2.pre9.
Note that the proportion between the left (stable) and
right (development) axes is 1 to 3.