Nothing new was unveiled, it was just an exhibition of MAPNA's past achievements for president.
also news was the same, "test of an engine which has domestic components on domestic test stand", and each time, morons change the news. don't expect the MAPNA to publish a new statement each few months!
Let me give you an example how truth changes gradually in media, check the picture in the following link:
روشن شدن موتور ایرانی هواپیما؛ خبری دردناک برای جامعه برانداز و غربگدا - مشرق نیوز
The small line in the newspaper says:
successful test of
airplane engine by
domestic components and test platform (there is no space for elaboration in this short line)
Then the big line (title) on the page says:
Iran turned the airplane's engine on (double meaning)
The tweeter guy says:
Iran turned it's future plane's engine on (totally new concept)
And this is the title which mashreghnews has chosen for the link:
Turning the
Iranian engine on