[7] The X'Trapolis 2.0 will replace the ageing Comeng fleet on the Craigieburn, Upfield, and Frankston lines.

[8] In the 2021-22 state budget, the Victorian Government announced $986 million in funding for an initial order of 25 new X'Trapolis 2.0 trains to be built by rolling stock manufacturer Alstom, which built the original X'Trapolis 100 trains used on much of the Melbourne rail network.

[10] The $986 million funding also included an upgrade to the Craigieburn train maintenance facility, to support maintaining and storing the new fleet.

[8] The government claims the project will support 750 jobs and ensure continued operation of the Ballarat North Workshops,[11] following concern by Alstom and trade unions about the facility's future.

[12] On 19 November 2024, the first X'Trapolis 2.0 train manufacturing was completed at Alstom Ballarat Workshops,[13][14] with testing on the Melbourne railway lines scheduled to commence in early 2025.