Swimming was Mac Miller's fifth studio album and the final album released during his lifetime. Issued in 2018 through REMember Music and Warner Bros. Records, it arrived at a moment when Miller's music had moved far beyond the bright, youthful rap image that first made him famous. By this point, he had become a restless songwriter, producer, rapper, and singer whose work drew from hip hop, jazz, soul, funk, and left-field studio experimentation. The album was shaped over a long creative period and involved a wide group of producers and musicians, including Miller himself, Jon Brion, DJ Dahi, Cardo, J. Cole, Tae Beast, Pomo, Steve Lacy, ID Labs, and others. Although Swimming has no credited guest features, it includes vocal contributions from artists such as Thundercat, Syd, Snoop Dogg, Dev Hynes, Dâm-Funk, and JID. That choice helped the album feel deeply personal: other voices appear as texture and support, but the emotional center remains Miller. Swimming is often understood as an album about trying to stay afloat. Its title fits the sound and mood: the music rarely explodes, but it keeps moving, circling through reflection, humor, exhaustion, acceptance, and self-repair. Miller's delivery is more conversational than combative, and his singing is used not as a pop shortcut but as part of the album's wounded, inward tone. The production gives him warm bass lines, soft keys, live-feeling drums, funk grooves, jazz colors, and open space, making the record feel less like a conventional rap album than a late-night interior monologue. 'Come Back to Earth' opens the album with a quiet sense of isolation and emotional weight, setting a tone of honesty rather than spectacle. 'Hurt Feelings' brings sharper drums and a more direct rap performance, while 'What's the Use?' turns Thundercat-assisted funk into one of the album's brightest grooves. 'Self Care' became one of the record's defining songs, moving from a heavy, hypnotic first half into the more spacious 'Oblivion' section, where Miller sounds both trapped and determined to keep going. The middle and later tracks deepen the album's reflective quality. 'Wings' and 'Dunno' show the softer side of Miller's writing, while 'Ladders' uses brass and lift to suggest movement out of darkness. 'Small Worlds', released before the album, became one of its clearest statements of perspective, mixing self-awareness, regret, and resilience. '2009' is one of the album's emotional peaks, with orchestral touches and a calm vocal performance that looks back without trying to recreate the past. The closing 'So It Goes' leaves the album unresolved but strangely peaceful, ending with a drifting ascent rather than a hard conclusion. Swimming was well received by critics and debuted at number three on the Billboard 200. It was later nominated for Best Rap Album at the Grammy Awards. Its legacy changed after Miller's death in September 2018, just over a month after the album's release, but the record does not need that tragedy to matter. Swimming stands on its own as one of his most mature works: a patient, soulful, carefully built album about endurance, self-knowledge, and the difficult act of moving forward when life feels heavy.