Hi, I've noticed that all of my project which either try to set :auto-postamble to nil, or set a custom value for :postamble have these settings ignored.
Digging in, in the `org-export-as-html' function, when the project plists are combined with the infile plists, the :postamble and :auto-postamble options are removed from the project plist, and a new :html-postamble option appears. Through setting the :html-postamble option directly in my project specification I am able to control the postamble contents on export, so maybe the fix is as simple as updating the documentation to remove the :auto-postamble and :postamble options and add the :html-postamble option, or perhaps (probably preferable) `org-export-as-html' should be updated to recognize these two options. Thanks -- Eric