The weekly will be a comprehensive, 184-page print title concentrating on business and political news and analysis and is a result of the recent wide-ranging consultation on the future of the Post, says Trinity Mirror.
Also featuring an enhanced leisure pull-out, an exclusive property magazine, and a monthly commercial property supplement, the first weekly Post features a report on the controversial shake-up of Birmingham's council-run marketing agency and the simmering budget row between Birmingham airport and the Regional Development Agency.
This week's edition also features an interview with local pop diva Beverly Knight, and the profile of Birmingham's oldest businessman Ken Smith, who at the age of 91, draws on memories of the 30s depression to help him cope with the credit crunch.
Already this week, the Post's reinvigorated online services have been enhanced with news and business updates to the website driving a 25% growth in hits on Monday and Tuesday alone.
The paper's new daily email service was also launched on Monday, with clickable headlines and a printable 'E-zine' edition that can also be downloaded to Kindle devices - believed to be a first in the regional press.
Birmingham Post editor Marc Reeves said: "Anyone who thought moving to a weekly format would make life a more relaxed affair would have been sorely mistaken this week.
"We have three main story upload 'editions' to the website through the day, and the last job at night is to prepare the next day's E-zine service. We take that as seriously as ever we did the daily print edition of the Post, because for many readers, this is a way they can get their daily Birmingham Post fix."
"We've been signing up subscribers to the new service in their hundreds every day, and our marketing campaign has gone to the inboxes of more than 250,000 people this week. The early response has been overwhelmingly positive
"The breaking news service will be sent to 15,000 subscribers every day who will have the opportunity to read it online, print it out or download it to their Kindle e-book - surely a first for the regional press."
Managing Director, BPM Media, John Griffith, said: "This is an ambitious and brave step and one that puts the Post in a strong position to meet the challenges of the economy and the changing media environment as we continue to develop our print and online services."
