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'All I Need' was one of the titles that appeared on the blackboard the band used during two weeks of rehearsals from september 19th to 30th 2005. At the end of that session, Colin posted a picture of this board on Dead Air Space on september 30th, unfortunately (and probably intentionally) in rather low resolution, so that some of it can't be deciphered:
On june 20th 2006, the song was premiered live in Chicago. The audio track of this video was replaced by a better recording for this website:
The lyrics changed slightly on the first three live performances. The main difference of these three versions compared to all later ones is the first verse, most of which would be rewritten soon. At San Diego 2, the fourth performance, the lyrics had reached their final state already:

Chicago 2 (debut):

i'm the next act
waiting in the wings
I'm a flash flood
running through your ground floor
I am all the things

that you choose to ignore

you are all I need
you are all I need
i'm in the middle of the picture
lying in the reeds

I'm a cloud of moths
that just wants to share your light
I'm an insect
who wants to get out of the night
you only stick with me
because there are no others

you are all I need
you are all I need
I'm in the middle of the picture
lying in the reeds
Berkeley 2:

I'm the next act
waiting in the wings
I'm a flash flood
running through your ground floor

I am all the days
that you choose to ignore

you are all I need
you are all I need
I'm in the middle of your picture
lying in the reeds

I'm a [...] moth
who just wants to share your light
I'm just an insect
trying to get out of the night
you only stick with me
because there are no others

you are all I need
you are all I need
I'm in the middle of your picture
lying in the reeds
San Diego 1:

I'm the next act
waiting in the wings
I'm a flash flood
running through the ground floor

I am all the days
that you choose to ignore

you are all I need
you are all I need
I'm in the middle of the picture
lying in the reeds

I am a moth
who just wants to share your light
I am an insect
trying to get out of the night
I am all the days
that you choose to ignore


you are all I need
you are all I need
I'm in the middle of your picture
lying in the reeds
Sometime in late 2006 or early 2007, the following video clip, depicting the band working on "All I Need", was recorded. The clip was shown almost 5 years later during Adam Buxton's comedy show "Bug":
On june 7th 2007, a picture titled 'lyinginthereedssm' appeared in the Hodiau Direkton section of radiohead.com:

lyinginthereedssm
On june 12th 2007, another picture, titled 'allineedsm', was posted:

allineedsm
On june 15th 2007, Nigel posted a video on Dead Air Space which showed the playback of a reel of assembled tape snippets, which were cut out during the editing process.
The reel contains 4 fragments from the finished recordings of 'All I Need'. Below you find these fragments, two of which actually flow seemlessly into each other and can be combined if one switches the order around (third audio clip here). The first two clips were backwards on Nigel's reel:
Click here for a more detailed description of this reel, including all 20 snippets in isolation.
An instrumental mix of the song was prepared by the band for licensing purposes and was available shortly after the release of In Rainbows on the website of Radiohead's publisher Warner/Chappell Music:
Live performance #81 during the making of The King of Limbs:
81. january 24th 2010 The Music Box Theatre at The Fonda Los Angeles, CA USA Link
Live performances #82 to #88 during the touring for The King of Limbs:
82. june 28th 2011 Glastonbury Festival Pilton UK Link
  The King of Limbs tour (1st half) 09/'11 02/'12 march 2012 april 2012 05/'12 june 2012
15 Step [23] 28 29 03 05 09 11 15 09 11 12 14 17 18 21 29 31 01 03 05 06 08 10 13
Weird Fishes/Arpeggi [23] 28 29 27 29 01 03 05 06 07 09 11 13 15 09 12 14 18 21 29 31 06 08 10
All I Need [6] 28 29 29 03 11 15
Videotape [1] 09
'All I Need' was not performed during the second half of touring for The King of Limbs.
  2016 A Moon Shaped Pool tour may 2016 06/2016 july 2016 august 2016 sept./oct. 2016
15 Step [1] 26
Weird Fishes/Arpeggi [17] 20 23 27 01 03 17 02 27 29 31 04 06 20 11 30 03 07
All I Need [4] 21 03 04 07
Videotape [1] 20
  2017 A Moon Shaped Pool tour march/april 2017 june 2017 july 2017
15 Step [23] 05 08 09 11 14 17 18 21 06 07 09 11 14 16 18 20 23 28 30 02 04 07 19
Weird Fishes/Arpeggi [17] 30 05 09 14 18 06 09 11 14 16 23 28 30 02 04 07 19
All I Need [19] 30 01 05 09 11 17 21 06 07 11 16 18 20 28 30 02 04 07 19
Videotape [5] 30 03 18 07 02