I don't think that there is a proper document, but the few differences can be laid out here.

NTSC-U 1.0 -> Fastest for 100%. Base version, I'll use that one for comparison. NTSC-U 1.1 -> Based off 1.0, the only documented change is the fact that the slope abused has been fixed in the termite tower (in Mumbo's Mountain), making the termite transform unskippable, thus overall slower (by about a minute)

NTSC-J -> Based off NTSC-U 1.1, so again the termite tower can't be completed as Banjo (needs termite transform). Text is just a tad faster, but it doesn't make up for the time lost to termite transform until Furnace Fun (and since most of us can't do FF in Japanese language, noone knows if it ends up faster overall)

PAL (1.0?) -> Fastest for Any%. I am not sure if there is a 1.1 PAL version, and if so, the difference would be the same as NTSC1.0 vs 1.1. NTSC vs PAL differences are more noticeable so I'll try making a list here (prolly incomplete as some prolly haven't been found yet)

The game runs at an adjusted speed to compensate for different refresh rate (50hz vs 60hz), and therefore framerate. So it means that most of the game physics have been adjusted to reflect that change, and that overall clips work a bit differently. Movement can feel a bit different, though it is usually not noticed until a while. This'll explain most of the following points. RBA : While the RBA clip does have a working method on NTSC, it is not viable for Any% runs. PAL has a Bee clip possible in the CCW entrace area that makes RBA possible, that's why all RBA (called simply any%) runs are made on PAL. I am pretty sure that most of the bee clips are easier on PAL, but I can't tell to which extent they are. Ground & flying clips that are either PAL-exclusive, or more consistent on PAL. An example of a PAL-exclusive clip is clipping through one of the termite tower floors (by ground pounding from below iirc). Flutter cancelling cannot be done on PAL. (Because of the speed difference, first frame of jumping goes too high to flutter cancel) Language Selection : The game asks on boot to choose between 3 languages (FR, EN, DE). While technically DE is faster, again most of us can't answer FF questions as efficiently in another language, which makes for a very minor speed difference overall.

XBLA (NTSC?) -> Based of NTSC-U 1.1. Slowest version overall. Means that patch-wise, the only difference is that Termite tower needs to be done as a termite. But there are quite a few other differences.

Steady 60FPS in all areas (in 480p/720p). Means that most collision-based clips are harder to perform (some are easier though). DoG skip hasn't been done on Xbox yet, but it's most likely possible. The "L" button wasn't mapped on Xbox (LB acts as "R"), which means that the method to skip textboes on N64 cannot be done, and therefore this is why we say that Xbox cannot slip text. (Loses 7+ min overall to NTSC-U) This is also why Xbox runners usually use an FFM setup that has all moves learned (to not have to read through learning moves text) Faster loading. Saves quite a lot of time on loading zones (we don't know exactly how much). Full-circular movement and camera controls (movement feels less clamped to the 8 base angles). Control scheme is also different, but that doesn't affect runs, except for the inverted x camera. Notes & Jinjos save on death. Means that the version is not only "safer" than N64 for beginners, but also that some levels can benefit from slightly faster death-warp-based routes. Ingame leaderboards. Once you exit a level, the game saves and submits the IL & overall time to the leaderboards. Makes up for a great improvement/comparison tool for 100%.

Runners, don't hesitate to add/correct anything to those :) And Auddy, ask around if you have any other question !

I did not list the emulator differences, if there is an emu runner who could do that, it'd be nice (if needed)

The game also lags in areas while in 1080p on the xbox 360, but not on the xbox one.

Technically PAL is a bit faster for 100%. There is a route using RBA which saves 20 seconds over NTSC but it requires harder tricks. The route saves 40s and PAL is known to lose 20s over the run in cutscenes. Overall, NTSC v1.0 should be fine since the clunky movement on PAL will probably lose at least another 20 seconds over the course of the run and nobody knows the exact time difference between the versions.

However, anyone who has PAL should use the RBA route for 100% since it is quicker than doing the NTSC route on PAL. But NTSC runners probably shouldn't go out of their way to get PAL equipment for 100%.

Basically for 100% if you have NTSC, stick with that and do the normal route. If you have PAL, stick with that and do the RBA route.

For any% PAL is faster by far.

Also there is no version number for PAL. As far as I know termite skip works on all PAL carts.

WR is on NTSC v1.0.