Taken from the following article regarding the BAF Mig-29 in Belarus possibly being upgraded to Mig-29BM standard.
https://www.defenseworld.net/featur...e_Refurbished_Fighter_Jet_Market#.Xstv2mhKguU
Belarus
The MiG-29BM (possibly Bolyshaya Modernizaciya - large modernization) is an upgrade to the MiG-29 conducted by the ARZ-558 aircraft repair plant in Baranovichi, Belarus.
The MiG-29BM is a strike variant of the MiG-29 pure fighter, the Belarussian counterpart to the Russian MiG-29SMT. This work is being done by the 558th Aviation Repair Plant with participation of Russian Avionics and in interaction with RSK MiG. Details of the upgrade are listed below.
Armament of air-to-air class is supplemented with additional medium-range missiles RVV-AE, R-27ER and R-27ET, precision-guided weapons such as KAB-500Kr and KAB-500L bombs. Overall, MiG-29BM can carry two air-to-surface missiles and two or four corrected bombs.
The radar homing system of modernized fighter MiG-29BM uses a number of new working modes. Modernized radar N019P of this airplane provides for observation of earth and water surface with the detection of single and group, pinpoint and prolonged ground and water-surface radio-contrast targets.
A new navigation system N-911 includes a navigation computer, a receiver of satellite navigation system GLONASS/NAVSTAR, radio technical system of close-range navigation A-323 and navigation and landing system VOR/ILS and DME.
MiG-29BM is complemented with an aerial refueling system. An easily dismantled refueling rod that is not retracted in flight is installed in the nose part of the fuselage on the left side.
Tests of the MiG-29BM (aircraft "9-11") were successfully completed by July 2003, and plant in Baranovichi began the delivery of the first modernized "MiGs" to the Belarus Air Force. A modernised MiG-29BM was on show at the international aviation and space salon MAKS 2005 in Moscow and evoked much interest of representatives of many countries. By mid-2007 several examples of this aircraft, together with a modernized Su-27UBM, were on duty in the Belarusian air force fleet.
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It looks like the first batch were sent over to Belarus on 10/19.
So perhaps expecting delivery around 4/21??