systemd is a set of basic building blocks of a Linux system. It provides a system and service manager running as PID 1 and starts the rest of the system.With ever-increasing capabilities and features, the Linux System and service managers have long since become million-linethe codeheavyweight applications.from its According to GitStats data, there will be as many as 5,094 systemd warehouse files in 2022, with a total of 1.71 million lines of code, 2,209 contributors, and a total of 61,756 historical submissions.

Systemd in 2022 has 6,271 commits compared to last year’s all-time high of 6,787 commits. This year, 201,000 lines of new code have been added to systemd, and another 110,000 lines of code have been deleted, for a net increase of more than 90,000 lines. Yu Watanabe is still the most prolific systemd maintainer this year, taking the title of “systemd’s most commits of the year” contributor last year from systemd original author Lennart Poettering and retaining that title. (Of course, Lennart is still a well-deserved No. 1 when it comes to total submissions.)

There are also some news about systemd this year, such as Lennart Poettering, the author of Systemd, left Red Hat and joined Microsoft, which also promoted the cooperation between Microsoft and Canonical and introduced systemd into WSL. In terms of version updates, this year there are two major versions, systemd 251 and systemd 252, which bring a large number of new features.