You mentioned about HashNode as a Platform and also about the services. I couldn't understand the offerings from these ? Is there are anything for the existing devlogs to be worried or impacted by that?

"Hashnode as a Platform" helps businesses launch Hashnode-like communities for their users. We are calling them "Hubs". Hashnode is always going to be free for individual bloggers. So, there is nothing to worry.

Are Devblogs going to be independent of the HashNode platform itself?

There will be no separate tool called Devblog. Hashnode's core offering will be blogging. In a way, Hashnode is Devblog and Devblog is Hashnode.

The existing services like 'Series' going to be available in new platform?

Yes, they will be available.

For someone who has a blog with us, nothing really changes. In fact, you are going to enjoy more features such as advanced analytics, easy discoverability, more promotions and so on.