Lets Encrypt - Wildcard SSL Support

I started using Lets Encrypt for free SSL in 2016. Since then I have used it in an excessive of 21 projects. I have loved it. But as a developer working on SaaS applications (predominantly sub-domain type) I have always wished that they provide wildcard SSL support. That is exactly what is going to happen.

According to their FAQ wildcard SSL were expected to be available by February 27, 2018. But their engineering teams had to work on a different issue for 2 weeks.

This would likely push back the feature by at least 2 weeks.

I am particularly interested in wildcard SSL because of a personal SaaS application that I am working on.