Tesla CEO Elon Musk gave an update to employees in an email on Tuesday explaining the company is halting production of its Model 3 for "a comprehensive set of upgrades," that will double its production levels, Electrek reports.

Why it matters, per Axios' Ben Geman: This lays out in some detail how the company, which has repeatedly missed targets for ramping up production of the mass market Model 3, intends to meet the closely watched pledge to reach 5,000 per week by mid-year. Successful scale up of the vehicle, which Tesla has struggled to produce at scale, is key to the company’s future.