why need render?

[mehasa]

do i need render before exporting my final project at adobe premier pro?

is that a function from adobe official? if not than adobe must announce to users a renderless export. 

[Peru Bob]

You do not need to render the timeline before exporting.

Rendering is only for previewing the timeline.

You may, however, render the timeline and choose "Use Previews" in the export settings for faster exporting.  Depending upon the media, sequence settings, and export settings the export may or may not be at a lower quality than not using previews.