Updates and evaluations of recent publications on the Al-Fe-P-Zn, Al-Fe-V-Zn, C-Fe-Mn-Nb and C-Fe-N-Ti-V systems are presented. Information on their phase diagrams includes isothermal sections and at 450 °C at 93% Zn for both the Al-Fe-P-Zn and Al-Fe-V-Zn systems, the solubility of NbC in austenitic C-Fe-Mn-Nb steel at 1150 °C, and the composition and fraction of titanium carbonitride in C-Fe-N-Ti-V steels on C and N content at 1100 °C.