"The Book" has a bit to say on this track. Credit where it's due, the book is called "The Beatles Recording Reference Manual" by Jerry Hammack. I think there are four volumes but to date I have only volumes 1-3. Luckily volume 3 (1966-1967) covers You Know My Name as recording on this track commenced in May 1967. It didn't conclude until Nov 1969 when it was shortened from 6:08 to 4:19 and mixed to mono and appeared as the B Side to the Let It Be single.
As mentioned elsewhere, it appeared in stereo (for the first time) on Anthology two. That version runs 5:43, so it's pretty much the original running length but for some reason has the ending cut short.
There were 6 separate session used during the recordings, and much of the song was done in parts - see the right side of the chart below. There were also multiple bouncedowns, but listening to the A2 version they clearly still have access to the pre-bouncedown tapes. Here's the chart.
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I like that name. Insert the ready made "Strawberry Fields Forever " and "Penny Lane".
