Programming Language Design and Implementation has collected the necessary number of commitments to proceed to the Private Beta phase, where you will be able to ask and answer questions and show that your subject has sufficient interest to make it as a full Stack Exchange Site!
This private beta phase is an important stepping stone, and its success relies on the committers inviting other people from the programming language design and implementation community to create high-quality questions and answers about this subject for it to progress from private beta to public beta.
During private beta, the site will not be visible from the rest of the network but may be accessed by visiting the Area 51 proposal or through a link shared by an existing user. If the proposal meets specific activity targets and contains high-quality content, it will go public and be visible from the network as a beta site.
The current plan is to start the private beta the week of May 16th, so start thinking of questions you want to ask and people you want to invite!
If you have any questions about this, please let me know.