Adobe AIR – common auto-update issues when upgrading your app to AIR 2.0

Earlier this week, I was updating an AIR app originally built on AIR 1.1 to AIR 2.0.   I changed my namespace to 2.0 (so I could take advantage of some new AIR 2.0 specific APIs), built my .airi file, signed it and tried to install it.  I expected it to prompt me to upgrade [...]