The question was not much about "new release" posting, more about spreading the word about a new project. And news could be written in a more "creative" way.

I asked the original question because a one shot news will not necessary gets "enough" attention, depending on the time or the day it has been posted for example.

Also I've read that: https://news.ycombinator.com/item?id=11237340

I think you misread the comment from Dan (dang); he clearly qualified his statement with, "in about a year." Which is the same as stated in the HN FAQ:

https://news.ycombinator.com/newsfaq.html

>"Are reposts ok?"

>"If a story has had significant attention in the last year or so, we kill reposts as duplicates. If not, a small number of reposts is ok."

If you want to spread the word about your project, you'll be better served by doing something interesting with it, blogging about the interesting thing you did, and submitting said blog post to HN. As long as you can keep doing interesting things with your project, you'll keep getting plenty of attention here.

Fair enough, thanks for taking the time to answer