Summary of changes for each API level?

Question

As the title says, are there any sources (web pages etc) of summarised changes at each API level?

I have an app which I've put out to a small group of beta testers and I already fell foul of Context.getExternalFilesDir(), which I hadn't noticed was introduced in API Level 8, when a couple of the guys tried it on Android v2.1 devices.

The majority of my code should be pretty generic but it would be useful if I could find a condensed/summarised list/table or similar that I can quickly glance over.

Answer 1

The Android docs provide a diff between each major API revision. For example, here is the diff between API 10 and 11. Unfortunately, it looks like it's only sequentially available between revisions (not from 8 to 11). I can't find the landing page for the diffs, but you can change the API revision in the URL to see other reports.

Answer 2

You should be running the app yourself on the lowest version of the platform you are supporting. Always. Run it in the emulator. There is no replacement for doing this.