Thanks for your answer. According to that page, version 3.1.4880 adds "ICS(IceCream Sandwich) support for AIR Android".

One would think that adding support for a whole new version of Android would warrant at least a minor version bump, not just the build.

Anyway, even if this 4880 update build is supposed to be only about ICS, I've found a weird bug in iOS that only happens with 3.1.4880 and not with the original 3.1 from November 2011:

https://bugbase.adobe.com/index.cfm?event=bug&id=3121219

@BDindeblender: Are you having the same issue? If you can't find the original 3.1 version I can try uploading it somewhere, but I think it's Adobe the one that should be providing the archived versions, even if it's just a different build of the "same version" (3.1).

Or, even better, please fix this regression. In the original 3.1 SDK, splash screens worked fine in iOS (tested today with both versions; old version works correctly, new one doesn't).

Edit: I've noticed there's a dropdown option in BugBase that suggests there's a new build: 3.1.5560

Where can we download that version?

These little updates where version number doesn't change (only build number) are pretty confusing, specially when a bug is inadvertently introduced and you can't download the old version because you don't provide it anymore from Adobe's site.

Sorry, I don't have the Mac version of SDK 3.1.

I hope you can solve the problem.

WTF?! Well, I guess that since Adobe AIR is free, they don't provide phone support. Maybe if you try Flash support they can help you, but I guess they would only give support for AIR 2.6 (the version included with Flash CS5.5)

Did Adobe finally provide you with the original AIR 3.1?

BTW, I've seen AIR 3.2 is in Release Candidate stage:

http://labs.adobe.com/technologies/flashplatformruntimes/air3-2/

I hope this bug wasn't carried over to that version!

Hi again. I've seen that Abhayjit Singh has replied in the BugBase page (why doesn't the BugBase system send me an e-mail so I know when somebody has replied, like this forum does?)

He suggests that this is happening because this is a "known issue" that happens when using the iOS 5 SDK to compile, triggered by using the -sdkplatform switch, which I never used.

I've looked for documentation about the -sdkplatform switch of the ADT tool and I haven't found any mention of changing the iOS SDK used.

I didn't even know I could do that!

Anyway, I always use ADT to compile (not Flash Builder), and I had never used that switch before, so since I'm not specifying anywhere the iOS 5 SDK, I'm thinking that maybe it's a Native Extension the one that's triggering the usage of the iOS 5 SDK. The extension I'm using is DoNotBackup by JamPot.ie, and since it uses an API available since iOS 5.0.1, maybe that extension is automatically triggering the iOS 5 SDK instead of the old one.

@BDindeblender: Are you using a Native Extension of some sort?

Anyway, even if that's the case, this should be fixed when using the iOS5 SDK, since it's the latest one, and this didn't happen anyway then using the original AIR 3.1, no matter if I used native extensions or not.