The most current edition of MHRA is the fourth edition, which was released in 2024. It is mostly the same as the third edition, there are only four changes that need to be noted, and they are as follows:
Previously: Susan Sontag, ‘Persona’, Sight and Sound, 36 (1967), 186–212
Now: Susan Sontag, ‘Persona’, Sight and Sound, 36.4 (1967), pp. 186–212
Previously: Claudia Dellacasa, ‘Troubled Religiousness in La cognizione del dolore by Carlo Emilio Gadda’, MLR, 115 (2020), 834–51
Now: Claudia Dellacasa, ‘Troubled Religiousness in La cognizione del dolore by Carlo Emilio Gadda’, MLR, 115.4 (2020), pp. 834–51, doi:10.5699/modelangrevi.115.4.0834
Previously: Roya Biggie, ‘The Botany of Colonization in John Fletcher’s The Island Princess’, Renaissance Drama, 50 (2022), 159–87
Now: Roya Biggie, ‘The Botany of Colonization in John Fletcher’s The Island Princess’, Renaissance Drama, 50.2 (2022), pp. 159–87, doi:10.1086/722938
Previously: Susan Harrow, Zola, the Body Modern: Pressures and Prospects of Representation (London: Legenda, 2010)
Now: Susan Harrow, Zola, the Body Modern: Pressures and Prospects of Representation (Legenda, 2010)