The updates and improvements that preceded the launch of the Linux kernel 3.14 branch indicated that this was going to be one of the most interesting releases in quite a while, but the updates for this version have been lagging a little behind.
In the past, the first updates to the fresh kernel were quite large and featured a multitude of fixes and changes. Either the new kernels are more stable and require less work, or the developers are focusing more on the upcoming 3.15 branch.