One mistake to avoid when sending product update

TL;DR
Make sure to add Call To Action (CTA) in all sections.

After launching Job Description AI - Professional job description generator with few clicks on Product Hunt, I spent the following three weeks fixing bugs and adding features requested by users to improve the service.

I have created a notion page for releases and included a link inside the portal. This will show the progress to regular users but how do I inform everyone who had registered?

I decided to send my first email update to all registered users informing them about the progress in the last 3 weeks.

The mistake I made? I didn't include a CTA. The only links I had was the logo and social media links at the end of the email. This has resulted in a click rate of only 0.8%.

If anyone is interested in the other metrics (open rate, bounce, unsubscribe ... etc), you can find it here Metrics from my first email update to all users