Su-24M2 Upgrades?

Lenta.ru (Russian link) reported during MAKS-2007 that the Russian Air Force plans on upgrading all of its Su-24s to Su-24M2 standards. However, the news piece does not include an original source, technical details or contactors involved, which lends the report questionable credibility. The fact that the Air Force is pursuing such an upgrade is well established, but its current status is unclear.

In general, the M2 upgrade has been described as including modernization of the navigation and weapons control systems and expanding the list of usable munitions. At least 4 airframes are reported (Russian link) to have been received by the Russian Air Force (in December of 2006, along with the first two Su-34s).