2017 is coming to a close, and unless someone commits something very soon, WordPress Core development is at rest (since we have an API to do that now). This is the third year I’ve compiled these stats, see the 2016 committer stats for some of the background information. I’m going to share the stats and then share my reactions to seeing them. An important caveat, in the post I’ll mention employers but we need to remember that people change jobs and that not everyone works on donated time. In fact, the vast majority of WordPress core committers are volunteering their time when they review, write, and commit code to WordPress.
2017 will end the year with 1731 changesets to trunk. This is down from 2967 last year. These changesets were committed by 35 individuals, down from 37 in 2016.
2017’s most prolific committer was Sergey Biryukov who was responsible for 20.57% of all WordPress commits. He takes this crown from Dominik Schilling. In raw numbers, Dominick had 4 more commits in 2016 than Sergey did in 2017. This is the first time since I started keeping these stats that a non-release lead has had the lead.
Other notable committers (by volume of commits) in 2017 were Weston Ruter (18.14%)