How to publish application update on Android market?

I have to publish first update for my publish application. I want to do it right, but have no i开发者_开发百科dea how :( Any help please?

In your AndroidManifest.xml, increment the versionCode (e.g. from 1 to 2), and optional, increase the versionName.

Then just create the signed .apk exactly as before (same key) and upload it to the Market.

Edit In the developer console, select your application and go to the apk files tab. When your in 'simple' mode, you can indeed just upload the file and be done. When in advanced mode, you can upload the file, turn off the old apk, and turn on the new .apk file.

And, as @Eamorr said, don't forget to save ofcourse :)