State of the Thunder 5: Setting Roadmap Priorities

In the fifth volume of State of the Thunder, we're focusing on priorities. How do we begin on a priority roadmap project? How do we decide what to release and when to release it? And how do we adjust priorities for the benefit of our users? Additionally, we have news about Thunderbird Sync (!), what MZLA is doing to improve the open ecosystem, and updates on Thunderbird Pro and the mobile apps.