mercurial-1.9.2 is built for F14, F15, and rawhide (F17), but F16 is still at 1.9.
Thanks for the report, Kalev!
The package was built, but it is still in testing repository.
You can get it with:
# su -c 'yum update --enablerepo=updates-testing mercurial-1.9.2-1.fc16'
Please go to the following url:
then log in and leave karma (feedback) to help push it to stable repository..
Closing as NOTABUG.