Relentless Mutation is the third studio album by Canadian technical death metal band Archspire, released on September 22, 2017 through Season of Mist.

[2] In February 2018, Relentless Mutation was nominated for the 2018 Juno Awards Metal / Hard Music Album of the Year.

[3] A lyric video for the album's premiere single, "Involuntary Doppelgänger", was released on July 5, 2017.

[5] An instrumental lyric video was released via Season of Mist's YouTube channel to promote the fourth single "Calamus Will Animate".

[6] The album was made available for streaming in its entirety via Season of Mist's YouTube channel on September 21, 2017.