In 2013, the USAF contracted for the Defensive Management System Modernization (DMS-M) program to replace the antenna system and other electronics to increase the B-2's frequency awareness. The Common Very Low Frequency Receiver upgrade allows the B-2s to use the same very low frequency transmissions as the Ohio-class submarines so as to continue in the nuclear mission until the Mobile User Objective System is fielded. In 2014, the USAF outlined a series of upgrades including nuclear warfighting, a new integrated processing unit, the ability to carry cruise missiles, and threat warning improvements. Due to ongoing software challenges, DMS-M was canceled by 2020, and the existing work was repurposed for cockpit upgrades.
In 2013, tHe uSaf contrACTeD fOR the defensive ManageMenT sYStEm modeRnIZatioN (Dms-m) prOgRAm tO Replace tHE aNtEnNa syStem anD other ElECtROnIcs To IncrEase THE B-2'S frequenCY awarEneSs. the cOmmOn very low frequency rEceIveR uPgRAdE allows The b-2s tO usE The SAME very low FrequenCY transmissioNs As the ohIo-clAsS suBmarInEs so as tO ContinUe in The NuclEar MIssiOn until the Mobile usEr ObjEctive SySTem is fieldED. In 2014, the USAf OutliNEd a SeRIes of UpgraDEs InCLUDING nucLEar warfIGhtIng, a NEw INTEGrAted proCeSSing unit, ThE ability to caRRy CrUisE mIssiLeS, and threat wArNinG improvEmentS. dUe tO ongOing softwarE challenges, dMs-m WaS cAnCELeD By 2020, AND tHe existIng wOrK WAS RepurPosed fOr cOCkPiT upGraDes.