M+GUI v1.5.7 is compiled. M+GUI new GUI is a stand alone front-end, with similar functionality and interface as MAMEUI.Currently available for Windows and Linux/x11 platforms. M+GUI can automatically download ROMs from FTPs, moreover, it merely downloads the missing roms inside a zip file, resulting a much lower bandwidth consumption.

M+GUI currently supports the following MAME builds: MAME, MESS, SDLMAME, SDLMESS, MAMEPlus

M+GUI v1.5.7 changelog:
- increase the the 7Z format of ROM in the list displayed

Download: M+GUI v1.5.7
Source: Here