Like every year, GitHub has released its annualOctoverse 2019report where it highlights the major changes and trends in the developer community.
As far as programming languages are concerned, Python has outranked Java as the second most popular language on GitHub. Meanwhile, Dart was named the fastest-growing programming language on the platform.

Top 10 Open Source Projects By Contributors On GitHub
Open source projects are growing on GitHub, ranging from one-line programs to projects with nearly 20,000 contributors. Since last year, there has been a massive increase in open source repositories.
The open-source repositories created in 2019 account for nearly 30% of all open-source projects on GitHub. In the list of top 10 open-source projects by contributors,microsoft/vscodeandansible/ansibleare two projects that are present since 2016.
The new names added in 2019 in the top ten list areflutter/flutter,firstcontributions/first-contributions, andhome-assistant/home-assistant.
Number of contributors to open source projects
10 Fastest Growing Open Source Projects By Contributors On GitHub
There is also significant contributor growth in kits and frameworks for building apps and websites across languages and platforms this year.
aspnet/AspNetCoretopped the list of growing open source projects on GitHub this year whereasflutter/flutter, since its 1.0 release in December 2018, has climbed to the second position.
Change in contributions to open source projects
Some Noteworthy Projects
These projects aren’t the fastest growing or highest-grossing, but the GitHub community thought they were star-worthy.