[9] In 2015, Mitsubishi Heavy Industries (MHI) unveiled the frigate's first concept model (30FF), which they had been developing with their own funds.

[4][10] In August 2017, the Acquisition, Technology & Logistics Agency (ATLA) selected MHI and Mitsui Engineering and Shipbuilding as the prime contractor and subcontractor to construct the frigate.

In January 2023, ATLA announced the "Guidelines for Recruiting Applicants for the 'Plan Proposal Contract for the New FFM'".

[15][3] The overall intent of the 30DX design was to achieve a modern, frigate-sized vessel with capabilities similar to the Akizuki-class destroyer but with a reduced crew and having only half the VLS cells.

The 30FF design looked similar to the United States Navy's Freedom-class littoral combat ship with an integrated mast.

The Type 23 ship-to-air missiles are planned to be installed on the "Upgraded Mogami", for which construction will begin in fiscal year 2024.

[24] At Sea Air Space 2019, Mitsubishi Heavy Industries revealed their 'Advanced Integrated CIC' for the vessel.

The 30FF was shown in PACIFIC 2015 as a contender for the Royal Australian Navy's SEA5000 ASW Frigate Program and on display again at Sea Air Space 2017.

[52] The FFM design was shortlisted as a contender for the Royal Australian Navy's new general purpose frigates.

[54] The Mogami design is competing with Germany's MEKO A-200, South Korea’s FFX Batch II/III, and Spain’s Alfa 3000 as proposed entries for RAN's next frigate.

[13] In September 2024, it was announced that Canberra will decide on a frigate model for the GPFP before the end of the year.

[57] On November 28, 2024, it was announced that Tokyo will allow Canberra to be involved in joint development and production of the Mogami class, if it is selected to be the new Australian frigate.