In a statement, creator and writer Heidi Thomas said she's "overjoyed" by the commissioning news.
"Call the Midwife is the pride and joy of all who work on it, but it's our fantastic, loyal audience that matters most," she said. "We are a family behind the scenes, on the screen, and in front of the telly, and I'm thrilled that we're all heading into the 1970's together."
The first season was set in 1957, with Jessica Raine starring as new midwife Jenny Lee, but the narrative has since extended far beyond that, with lots more to come in seasons 13, 14 and 15.
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Over the last 11 years, the drama has seen cast members come and go, but plenty of familiar faces are still kicking about, including Jenny Agutter (Sister Julienne), Judy Parfitt (Sister Monica Joan), Helen George (Trixie Franklin), Laura Main (Shelagh Turner), Stephen McGann (Dr Patrick Turner) and Cliff Parisi (Fred Buckle).
The ongoing season of Call the Midwife has delivered plenty of drama, with Trixie (Helen George) and Matthew (Olly Rix) wobbling over their wedding plans, and Lucille and Cyril's marriage facing its biggest test yet.
In the season finale, which is being postponed due to the 2023 BAFTA Film Awards, Trixie and Matthew are supposed to tie the knot – but will the big event take place?
Call the Midwife airs on Sundays on BBC One at 8pm and is also available to stream on BBC iPlayer. Check out more of our Drama coverage or visit our TV Guide and Streaming Guide to see what's on tonight.