Hey Alex,
The question is, how will version 1.0 installation have the updates applied? Will the pre- & post-update scripts associated with version 1.1 be executed first, followed by pre- & post-update scripts associated with version 1.2?
wyBuild 2.6.x (and prior) creates only "direct patches". This means, if we use your example, when a user running 1.0 updates to 1.2 they download and install the "direct patch" to 1.2. In other words only the pre/post execution scripts from the 1.2 version tab in wyBuild will be executed.
In wyBuild 2.7.0 we're adding the ability for "incremental patches" (in addition to "direct patches"). This "incremental" patch means the end user running 1.0 will download and install version 1.1 followed by downloading and installing 1.2 of your app.
Does that make sense?