Twitter redesigns its app to make Spaces the center tab in the main navigation bar, initially on iOS for around 500 people from the original Spaces beta test (Sarah Perez/TechCrunch)

Sarah Perez / TechCrunch:
Twitter redesigns its app to make Spaces the center tab in the main navigation bar, initially on iOS for around 500 people from the original Spaces beta test  —  Twitter is updating its app to make its audio chat room feature, Twitter Spaces, a central part of the user experience.