Short answers, pulled from the story.
Paul McCartney initiated the project to restore the band's original stripped-down aesthetic and remove Phil Spector's orchestral overdubs. He felt that the original album's producer did not capture the group's live-to-tape aesthetic intended for the album.
The traditional Liverpool folk song Maggie Mae and the improvisational piece Dig It were excised as they did not fit comfortably with the concept of a straight album. These tracks were removed by album remixer Allan Rouse.
The album was released on the 17th of November 2003 by Apple Records following an extensive promotional campaign. The world premiere occurred on the 13th of November 2003 with a two-hour radio special from Infinity Broadcasting.
A remix of the take recorded on the 27th of January 1969 was used for both the single and album without the coda recorded on the 28th of January featured in the single version or framing dialogue from the studio and rooftop concert added to the album version.