Posts from 2020

Supporting Wikipedia with more tools for editors

Tuesday, August 11, 2020

Google has a commitment to making information more accessible to people around the world, while ensuring that the information on the web is accurate and reflects the diversity of its users. Just like Google supports open source software development, WikiLoop is one of the explorations on better contributing to the open knowledge movement. To this day, Wikipedia, a Wikimedia movement project, remains a reliable information source that is also available with an open license, which makes it possible for Knowledge Engine of Google—as well as knowledge graph systems operated by others —to draw excerpts from it for Search features and other apps. With the project’s sustainability in mind, Google has contributed back to the Wikimedia movement in a number of ways since 2018. Building on this commitment, Google created the umbrella program WikiLoop in 2019, which hosts several tools for editors that focus on content quality, like WikiLoop DoubleCheck. 
WikiLoop is led by Zainan Zhou—a Googler for the last 7 years, and a Wikipedian for the last 5—who works as a software engineer in the Knowledge Engine team at Google. When he joined the free encyclopedia as an editor, he always wondered how his company could contribute to this open source project. Zainan involved the Wikipedia communities in every step of the development of WikiLoop, connecting with editors from different parts of the world at Wikimedia events, like WikidataCon, Wikimania, Wiki Conference North America, and WikiDevSummit, throughout 2019. The most recent involvement with the community of Wikipedia editors included a consultation and vote to change the name of the most popular WikiLoop artifact, a tool for peer-review of Wikipedia articles, DoubleCheck.

In the past few months, we focused on raising awareness of WikiLoop DoubleCheck. This tool allows registered and unregistered users to mark new edits with tags “looks good”, “not sure”, and “should revert”, a peer review system which editors could use to approve or revert new content on Wikipedia. Since its launch, the tool has witnessed a 309% quarter over quarter growth in tags added, and over 1,000 editors have used it to review Wikipedia content. With the help of volunteer translators and machine translation, WikiLoop DoubleCheck is now made available in 25 languages, and we hope to continue serving more Wikipedia editors in the months to come. In order for Google’s Knowledge Engine to organize the world's information, the knowledge source needs to be healthy. While peer-review on Wikipedia is an established process that has been going on for years, tools like WikiLoop DoubleCheck support the thousands of volunteers who dedicate their time to this task on Wikipedia by making information verification more accessible.

The WikiLoop program was originally conceived as a virtuous circle: providing data and tools to enhance human editor's productivity, and making the Wikipedia editorial input more machine-readable for open knowledge institutions, academia and researchers interested in advancing machine learning technology.

WikiLoop leverages Google’s talents at software development to contribute to global Wikipedia content accuracy by enhancing the existing suite of Wikimedia and community tools for content validation at scale. While WikiLoop is a contribution of Google to the Wikipedia communities, Google and the Wikimedia Foundation have partnered in other areas as well. Learn more about Google’s partnership with the Wikimedia Foundation on the partnership’s page on Meta-Wikimedia

While probably the most popular in the set, DoubleCheck is not the only tool under the WikiLoop umbrella. We are also building data sets and tools and continue to explore other opportunities to contribute to the open knowledge movement. Learn more about tools and other initiatives, like the Coalition call, on the program’s page on Meta-Wikimedia.

By María Cruz  Program Manager, Google Open Source Programs Office

Introducing TensorFlow Recorder

Friday, August 7, 2020

When training computer vision machine learning models, data loading can often be a performance bottleneck, causing your GPU or TPU resources to be underutilized while waiting for data to be loaded into the model. Storing your dataset in the efficient TensorFlow Record (TFRecord) format is a great way to solve these problems, but creating TFRecords can unfortunately often require a great deal of complex code.

Last week we open sourced the TensorFlow Recorder project (also known as TFRecorder), which makes it possible for data scientists, data engineers, or AI/ML engineers to create image based TFRecords with just a few lines of code. Using TFRecords is incredibly important for creating efficient TensorFlow ML pipelines, but until now they haven’t been so easy to create. Before TFRecorder, in order to create TFRecords at scale you would have had to write a data pipeline that parsed your structured data, loaded images from storage, and serialized the results into the TFRecord format. TFRecorder allows you to write TFRecords directly from a Pandas dataframe or CSV without writing any complicated code.

You can see an example of TFRecoder below, but first let’s talk about some of the specific advantages of TFRecords.

How TFRecords Can Help

Using the TFRecord file format allows you to store your data in sets of files, each containing a sequence of protocol buffers serialized as a binary record that can be read very efficiently, which will help reduce the data loading bottleneck mentioned above.

Data loading performance can be further improved by implementing prefetching and parallel interleave along with using the TFRecord format. Prefetching reduces the time of each model training step(s) by fetching the data for the next training step while your model is executing training on the current step. Parallel interleave allows you to read from multiple TFRecords shards (pieces of a TFRecord file) and apply preprocessing of those interleaved data streams. This reduces the latency required to read a training batch and is especially helpful when reading data from the network.

Using TensorFlow Recorder

Creating a TFRecord using TFRecorder requires only a few lines of code. Here’s how it works.
import pandas as pd
import tfrecorder
df = pd.read_csv(...)

TFRecorder currently expects data to be in the same format as Google AutoML Vision.

This format looks like a pandas dataframe or CSV formatted as:

  • split can take on the values TRAIN, VALIDATION, and TEST
  • image_uri specifies a local or google cloud storage location for the image file.
  • label can be either a text-based label that will be integerized or an integer
In the future, we hope to extend TensorFlow Recorder to work with data in any format.

While this example would work well to convert a few thousand images into TFRecords, it probably wouldn’t scale well if you have millions of images. To scale up to huge datasets, TensorFlow Recorder provides connectivity with Google Cloud Dataflow, which is a serverless Apache Beam pipeline runner. Scaling up to DataFlow requires only a little bit more configuration.

What’s next?

We’d love for you to try out TensorFlow Recorder. You can get it from GitHub or simply pip install tfrecorder. Tensorflow Recorder is very new and we’d greatly appreciate your feedback, suggestions, and pull requests.

By Mike Bernico and Carlos Ezequiel, Google Cloud AI Engineers

Open source by the numbers at Google

Wednesday, August 5, 2020

At Google, open source is at the core of our infrastructure, processes, and culture. As such, participation in these communities is vital to our productivity. Within OSPO (Open Source Programs Office), our mission is to bring the value of open source to Google and the resources of Google to open source. To ensure our actions match our commitment, in this post we will explore a variety of metrics intended to increase context, transparency, and accountability across all of the communities we engage with.

Why we contribute: Open source has become a pervasive component in modern software development, and Google is no exception. We use thousands of open source projects across our internal infrastructure and products. As participants in the ecosystem, our intentions are twofold: give back to the communities we depend on as well as expand support for open source overall. We firmly believe in open source and its ability to bring together users, contributors, and companies alike to deliver better software.

The majority of Google’s open source work is done within one of two hosting platforms: GitHub and git-on-borg, Google’s production Git service which integrates with Gerrit for code review and access control. While we also allow individual usage of Bitbucket, GitLab, Launchpad, and other platforms, this analysis will focus on GitHub and git-on-borg. We will continue to explore how best to incorporate activity across additional channels.

A little context about the numbers you’ll read below:
  • Business and personal: While git-on-borg hosts both internal and external Google created repos, GitHub is a mixture of Google projects, experimental efforts and personal projects created by Googlers.
  • Driven by humans: We have created many automated bots and systems that can propose changes on both hosting platforms. We have intentionally filtered these data to ensure we are only showing human initiated activities.
  • GitHub data: We are using GH Archive as the primary source for GitHub data, which is currently available as a public dataset on BigQuery. Google activity within GitHub is identified by self registered accounts, which we anticipate under reports actual usage as employees acclimate to our policies.
  • Active counts: Where possible, we will show ‘active users’ and ‘active repositories’ defined by logged activity within each specified timeframe (for GH archive data, that’s any event type logged in the public GitHub event stream).
As numbers mean nothing without scale, let’s start by defining our applicable community: In 2019, more than 9% of Alphabet’s full time employees actively contributed to public repositories on git-on-borg and GitHub. While single digit, this percentage represents a portion of all full time Alphabet employees—from engineers to marketers to admins, across every business unit in Alphabet—and does not include those who contribute to open source projects outside of code. As our population has grown, so has our registered contributor base:
This chart shows the aggregate per year counts of Googlers active on public repositories hosted on GitHub and git-on-borg

What we create: As mentioned above, our contributing population works across a variety of Google, personal, and external repositories. Over the years, Google has released thousands of open source projects (many of which span multiple repositories) and ~2,600 are still active. Today, Google hosts over 8,000 public repositories on GitHub and more than 1,000 public repositories on git-on-borg. Over the last five years, we have doubled the number of public repos, growing our footprint by an average of 25% per year.

What we work on: In addition to our own repositories, we contribute to a wide pool of external projects. In 2019, Googlers were active in over 70,000 repositories on GitHub, pushing commits and/or opening pull requests on over 40,000 repositories. Note that more than 75% of the repos with Googler-opened pull requests were outside of Google-managed organizations (on GitHub).
This charts shows per year counts of activities initiated by Googlers on GitHub

What we contribute: For contribution volume on GitHub, we chose to focus on push events, opened, and merged pull requests instead of commits as this metric on its own is difficult to contextualize. Note that push events and pull requests typically include one or more commits per event. In 2019, Googlers created over 570,000 issues, opened over 150,000 pull requests, and created more than 36,000 push events on GitHub. Since 2015, we have doubled our annual counts of issues created and push events, and more than tripled the number of opened pull requests. Over the last five years, more than 80% of pull requests opened by Googlers have been closed and merged into active repositories.

How we spend our time: Combining these two classes of metrics—contributions and repos—provides context on how our contributors focus their time. On GitHub: in 2015, about 40% of our opened pull requests were concentrated in just 25 repositories. However, over the next four years, our activity became more distributed across a larger set of projects, with the top 25 repos claiming about 20% of opened pull requests in 2019. For us, this indicates a healthy expansion and diversification of interests, especially given that this activity represents both Google, as well as a community of contributors that happen to work at Google.
This chart splits the total per year counts of Googler created pull requests on GitHub by Top 25 repos vs the remainder ranked by number of opened pull requests per repo per year.

Open source contribution is about more than code

Every day, Google relies on the health and continuing availability of open source, and as such we actively invest in the security and sustainability of open source and its supply chain in three key areas:
  • Security: In addition to building security projects like OpenTitan and gVisor, Google’s OSS-Fuzz project aims to help other projects identify programming errors in software. As of the end of 2019, OSS-Fuzz had over 250 projects using the project, filed over 16,000 bugs, including 3,500 security vulnerabilities.
  • Community: Open source projects depend on communities of diverse individuals. We are committed to improving community sustainability and growth with programs like Google Summer of Code and Season of Docs. Over the last 15 years, about 15,000 students from over 105 countries have participated in Google Summer of Code, along with 25,000 mentors in more than 115 countries working on more than 680 open source projects.
  • Research: At the end of 2019, Google invested $1 million in open source research, partnering with researchers at UVM, with the goal to deepen understanding of how people, teams and organizations thrive in technology-rich settings, especially in open-source projects and communities.
Learn more about our open source initiatives at

By Sophia Vargas – Researcher, Google Open Source Programs Office

Google joins the Open Source Security Foundation

Monday, August 3, 2020

In modern software development, much of the code developers use originates outside their organization and is open source. While the cloud and internet ecosystem depends on an open source foundation, the sheer scale and dependency chain of the libraries and packages we all use makes it difficult to validate and verify the origin of the code you’re ingesting; that it’s up to date on recent patches, and coming from projects following security best practices. To continue deriving benefits from open source, we need to ensure that as a community we are building on the strongest possible foundation. 

At Google, security is always top of mind, and we have developed robust systems and security tools—including open source ones—to protect our internal systems and our customers. We believe the more we share what we’ve learned about open source security, and the more we work with those who face similar challenges, the more we can improve the state of open source security for everyone.

We’re happy to announce that Google is joining the Open Source Security Foundation (OpenSSF) to work alongside the broader industry on this journey of improving the state of security of open source projects we all depend on. Google has key areas in open source security we want to work on, and we’re excited to share our ideas with the OpenSSF community and work together. Some of our key areas are:
  1. Shared schemas and metadata that enable automation for enforcing security best practices along the entire software supply chain.
  2. Dependency management and risk assessments through tooling and data. We want to make it easy to map vulnerabilities back to specific versions of code that are affected and take action.
  3. Verifiable builds through trusted build systems so that we know artifacts haven’t been tampered with. The Tekton project has been exploring this idea, and we’re excited to share some of these ideas with OpenSSF.
  4. A developer identity system to help associate code changes back to their original author and help code reviewers have developer authentication as part of their commit and PR review process.
  5. Securing critical OSS projects and helping projects respond to vulnerabilities. If you’re a maintainer who’s interested in getting help with vulnerability response or security engineering efforts, watch this space!
Security challenges are never going to disappear, and we must work together to maintain the security of the open source software we collectively depend on. If you're interested in getting involved in the OpenSSF initiatives, visit or OpenSSF on GitHub.You can be a part of how the OpenSSF serves the open source community and the world!

By Kim Lewandowski, Product Security Team, and Dan Lorenc, Infrastructure Security Team, Google

Announcing a new kind of open source organization

Wednesday, July 8, 2020

Google has deep roots in open source. We're proud of our 20 years of contributions and community collaboration. The scale and tenure of Google’s open source participation has taught us what works well, what doesn’t, and where the corner cases are that challenge projects.

One of the places we’ve historically seen projects stumble is in managing their trademarks—their project’s name and logo. How project trademarks are used is different from how their code is used, as trademarks are a method of quality assurance. This includes the assurance that the code in question has an open source license. When trademarks are properly managed, project maintainers can define their identity, provide assurances to downstream users of the quality of their offering, and give others in the community certainty about the free and fair use of the brand.

In collaboration with academic leaders, independent contributors, and SADA Systems, today we are announcing the Open Usage Commons, an organization focused on extending the philosophy and definition of open source to project trademarks. The mission of the Open Usage Commons is to help open source projects assert and manage their project identity through programs specific to trademark management and conformance testing. Creating a neutral, independent ownership for these trademarks gives contributors and consumers peace of mind regarding their use of project names in a fair and transparent way.

Understanding and managing trademarks is critical for the long-term sustainability of projects, particularly with the increasing number of enterprise products based on open source. Trademarks sit at the juncture of the rule of law and the philosophy of open source, a complicated space; for this reason, we consider it to be the next challenge for open source, one we want to help with.

To get the Open Usage Commons started, Google has contributed initial funding, and the trademarks of Angular, a web application framework for mobile and desktop; Gerrit, web-based team code-collaboration tool; and Istio, an open platform to connect, manage, and secure microservices, will be joining the Open Usage Commons. If you use a trademark of one of the projects currently, you can continue to use those marks, following any current guidance from the project. As the Open Usage Commons is focused on trademark management, the contributor communities and technical roadmaps of these projects are not changed by joining the Commons, although we hope this new model encourages anyone who has stood on the sidelines until now to participate in these projects.

As the Open Usage Commons board wrote in their announcement, this is uncharted territory, and the Commons intends to “walk before they run,” so you can expect more information and activity from the organization in the coming months.

Learn more about the role of trademarks in open source and the Open Usage Commons at

By Chris DiBona, Director, Open Source at Google

Expanding our Differential Privacy Library

Wednesday, June 24, 2020

All developers have a responsibility to treat data with care and respect. Differential privacy helps organizations derive insights from data while simultaneously ensuring that those results do not allow any individual's data to be distinguished or re-identified. This principled approach supports data computation and analysis across many of Google’s core products and features.

Last summer, Google open sourced our foundational differential privacy library so developers and organizations around the world can benefit from this technology. Today, we’re announcing the addition of Go and Java to our library, an end-to-end solution for differential privacy: Privacy on Beam, and new tools to help developers implement this technology effectively.

We’ve listened to feedback from our developer community and, as of today, developers can now perform differentially private analysis in Java and Go. We’re working to bring these two libraries to full feature parity with C++.

We want all developers to have access to differential privacy, regardless of their level of expertise. Our new Privacy on Beam framework captures years of Googler developer experience and efficiency improvements in a comprehensive and easy-to-use solution that handles computation end-to-end. Built on Apache Beam, Privacy on Beam can reduce implementation mistakes, and take care of all the steps that are essential to differential privacy, including noise addition, partition selection, and contribution bounding. If you’re new to Apache Beam or differential privacy, our codelab can get you started.

Tracking privacy budgets is another challenge developers face when implementing differential privacy. So, we’re also releasing a new Privacy Loss Distribution tool for tracking privacy budgets. With this tool, developers can maintain an accurate estimate of the total cost to user privacy for collections of differentially private queries, and better evaluate the overall impact of their pipelines. Privacy Loss Distribution supports widely used mechanisms (such as Laplace, Gaussian, and Randomized response) and can scale to hundreds of compositions.

We hope these new languages, tools, and features unlock differential privacy for even more developers. Continue to share your stories and suggestions with us at—your feedback will help inform our future differential privacy launches and updates.


Software Engineers: Yurii Sushko, Daniel Simmons-Marengo, Christoph Dibak, Damien Desfontaines, Maria Telyatnikova, Dennis Kraft, Jimmy Ross, Vadym Doroshenko
Research Scientists: Pasin Manurangsi, Ravi Kumar, Sergei Vassilvitskii, Alex Kulesza, Jenny Gillenwater, Kareem Amin

By: Miguel Guevara, Mirac Vuslat Basaran, Sasha Kulankhina, and Badih Ghazi – Google Privacy Team and Google Research

Welcoming 1,000+ Interns to Open Source at Google

Tuesday, June 23, 2020

One of the core tenets of open source is about finding ways for people to build great things by working together, regardless of location. This summer, through our intern program we’re gathering incredible talent from schools around the world, Googlers with a passion for open source, and project maintainers both inside and outside of Google to see what we can build together. 

Onboarding that many interns and turning them into new open source contributors was no easy task. So in partnership with the Intern Programs team and engineering teams across Google, we’ve grounded our planning by answering four key questions. 

How can we make our internship program a force for good in the open source ecosystem?

We knew that having more than a thousand interns contribute to open source projects could have a huge impact, however, many projects aren’t set up to onboard dozens of new contributors at one time and many maintainers can’t take on hundreds of new pull requests. Early on, we established best practices for intern placement and support. We committed to:
  • Aligning interns’ work with project priorities to advance the project while also allowing the interns to learn and grow their skills.
  • Proactively communicating with project maintainers and contributors, keeping them in the loop on timelines and logistics.
  • Looking beyond Google. While we prioritized projects that have full-time Google engineerings support. That includes Google-owned projects like Go, TensorFlow, and Chromium, as well as Google-created projects we invest heavily in, such as Kubernetes, Apache Beam, and Tekton. But Google also has full-time engineers working on outside projects we rely on, so our interns will also be working on projects like Envoy, Rust, and Apache Maven.

How can we introduce the interns to open source at Google?

We are determined to support and empower the interns as they become lifelong contributors to open source. Every Noogler in engineering learns about using and contributing to open source in a training run by our Open Source Programs Office. With an unprecedented number of interns working on open source projects, we are also providing additional resources; from offering a platform for questions, office hours, enrichment talks, and partnerships with external open source organizations.

How can we learn from our interns about the experience of contributing to open source at Google and beyond?

We see a huge opportunity to listen to our interns this summer. By meeting with interns and hosts—as well as surveying the entire class of interns at the end of the summer—we can look for ways to improve open source at Google and the contributor experience for projects they’re working on. We’re excited to learn from the internship program and from interns’ perspectives working in and contributing to open source.

How can we have an impact on these students that carries on throughout their careers?

One of my favorite questions to ask Googlers who are active in open source is how they were first introduced to open source. There’s a well-trodden path of a developer fixing an annoying bug, then a few more bugs, then adding small features, becoming a core contributor, and eventually a project maintainer. That process requires persistence and patience, and projects lose a lot of great developers along the way.

But... What if your first experience with open source is being welcomed into a large and thriving community of contributors? What if you get to contribute to open source full time, mentored by creators and maintainers of the project you’re working on, collaborating across organizations and across time zones? Our hope is that this kind of experience will leave a lasting impression on this summer’s interns and that they’ll continue to contribute to open source for a long time to come.

By Jen Phillips, Google Open Source

COVID-19: How Google is helping the open source community

Monday, June 22, 2020

COVID-19 has affected so much of the world around us, and open source is no exception. Project resilience is being challenged by COVID-19. Community members have even less time to contribute. Event cancellations are impacting networking, collaboration, and fundraising.

Google wants to do everything it can to help. This means that it’s even more important for the Google Open Source Programs Office to step up our commitment to citizenship. We’re taking several steps to support industry organizations and the projects that we participate in to help them operate during this time.

Virtual Events Support

  • Participating in talks internally and externally to Google to share knowledge and insight into open source projects and practices with the wider open source communities.
  • To support the shift from an offline to online events model, we created an online guide to share resources and event planning knowledge: Open Source Virtual Events Guide.


  • COVIDActNow is a multidisciplinary team working to provide disease intelligence and data analysis on COVID in the U.S. Google contributed to this project by improving their data pipeline allowing for county level data visualization, providing more localized insight for crisis planning.
  • Nextstrain is a platform for real-time tracking of pathogen evolution. Google contributed engineering, design, and translation resources to help scientists conduct research into real-time tracking of pathogen evolution.
  • - Google led rapid response designs for structured data markup to contribute to the COVID-19 global response, leading to the UK making similar announcements.
  • Google’s annual internship program was converted to a digital program where interns will focus on open source projects, allowing projects to gain new contributors in a non-traditional environment.
  • Google Summer of Code brings over 1100 university students from around the world together with open source communities, many of which are working on various humanitarian efforts related to COVID-19. The program is completely online so students can work with their mentors remotely, allowing all organizations to continue receiving the support they need.
The impact from COVID-19 will have long-term effects on many organizations and projects that may not be immediately apparent. In the coming months, we will monitor the needs of projects and organizations across open source. We understand the value of open source not just to the tech world, but the impact it has on bringing communities together; Google has a long standing history in open source and we will continue supporting our community to stay strong during and after the passing of COVID-19.

We encourage folks who have the time and ability to support open source communities to do so by getting involved and reaching out directly to organizations that interest you. This is a time for all of us to come together and lift up each other and open source.

By Megan Byrd-Sanicki and Radha Jhatakia, Google Open Source

Tsunami: An extensible network scanning engine for detecting high severity vulnerabilities with high confidence

Thursday, June 18, 2020

We have released the Tsunami security scanning engine to the open source communities. We hope that the engine can help other organizations protect their users’ data. We also hope to foster collaboration, and encourage the security community to create and share new detectors on top of Tsunami.

When an attacker begins to exploit security vulnerabilities or security misconfigurations, such as weak passwords, an organization needs to react quickly in order to protect potentially vulnerable assets. With attackers increasingly investing in automation, the time window to react to a newly released, high severity vulnerability is usually measured in hours. This poses a significant challenge for large organizations with thousands or even millions of internet-connected systems. In such hyperscale environments, security vulnerabilities must be detected and, ideally, remediated in a fully automated fashion. To make this possible, information security teams need to be able to roll out detectors for novel security issues at scale in a very short amount of time. Furthermore, it is important that the detection quality is consistently very high. To handle these challenges, we created Tsunami: an extensible network scanning engine for detecting high severity vulnerabilities with high confidence.

Google leverages Google's Kubernetes Engine (GKE) to continuously scan and protect all of our externally facing systems with the Tsunami scanning engine. When scanning a system, Tsunami executes a two-step process:
  1. Reconnaissance: In the first step, Tsunami detects open ports; then subsequently identifies protocols, services, and other software running on the target host using a set of fingerprinting plugins. To avoid reinventing the wheel, Tsunami leverages existing tools such as nmap for some of these tasks.
  2. Vulnerability verification: Based on the information gathered through reconnaissance, Tsunami selects all vulnerability verification plugins matching the identified services. To confirm that a vulnerability indeed exists Tsunami executes a fully working, benign exploit.
In its initial version, Tsunami ships with detectors for the following security issues:
  • Exposed sensitive UIs: Applications such as Jenkins, Jupyter, and Hadoop Yarn ship with UIs that allow a user to schedule workloads or to execute system commands. If these systems are exposed to the internet without authentication, attackers can leverage the functionality of the application to execute malicious commands.
  • Weak credentials: Tsunami uses other open source tools such as ncrack to detect weak passwords used by protocols and tools including SSH, FTP, RDP, and MySQL.
In the coming months, we plan to release many more detectors for vulnerabilities similar to remote code execution (RCE). Furthermore, we are working on several other new features that will make the engine more powerful and easier to use and extend.

In order to make contributions easy, we split our codebase into two Github Repositories:
  1. A repository for the main scanning engine
  2. A repository for Tsunami scanning plugins
If you have any questions or if you would like to contribute, don't hesitate to reach out to us.

By Guoli Ma, Claudio Criscione & Sebastian Lekies, Vulnerability Management Team

Three opportunities to connect with Google Open Source in June

Monday, June 15, 2020

One of our biggest challenges this year has been finding opportunities to stay connected with the many open source communities that we collaborate with across projects. As we continue to develop new ways of creating convenings with our different stakeholders, here are three opportunities to connect with Google Open Source later this month.

24 hours of Google Cloud Talks by DevRel

When: June 23, 2020
What: This is a free, digital series, organized by Google Developer Relations team, offering practitioners an opportunity to connect with our technical experts and deepen their awareness and knowledge of a variety of Google Cloud solutions including ML/AI, Serverless, DevOps, and many more.

Talks by Google Open Source:

June 23

OpenJS World

When: June 23-24, 2020
What: Organized by The Linux Foundation, and sponsored by Google, this annual event brings together the JavaScript and web ecosystem including Node.js, Electron, AMP and more. In 2020, we’re going virtual to learn and engage with leaders deploying innovative applications at massive scale.

Talks by Google Open Source:

June 23
June 24

Open Source Summit North America

When: June 29 – July 2, 2020
What: Organized by The Linux Foundation, and sponsored by Google, this event connects the open source ecosystem under one roof, summoning over 2,000 participants across 15 conference rooms. It’s a unique environment for cross-collaboration between developers, sysadmins, devops, architects, program and product managers and others who are driving technology forward.

Talks by Google Open Source:

June 29
June 30
If you attend any of these talks, and plan to share, you can tag @GoogleOSS on Twitter. We hope to see and connect with many of you at these virtual events!

By María Cruz, Google Open Source

Google Summer of Code 2020 Statistics: Part 1

Friday, June 12, 2020

Since 2005, Google Summer of Code (GSoC) has been bringing new developers into the open source community every year. This year, we accepted 1,199 from 66 countries into the 2020 GSoC program to work with 199 open source organizations over the summer. Students began coding June 1st and will spend the next 12 weeks working closely under the guidance from mentors from their open source communities.

Each year we like to share program statistics about the GSoC program and the accepted students and mentors involved in the program. 6,626 students from 121 countries submitted 8,903 applications for this year’s program.

Accepted Students

  • 86.6% are participating in their first GSoC
  • 71.7% are first time applicants to GSoC


  • 77.4% are undergraduates, 16.8% are masters students, and 5.8% are in PhD programs
  • 72.5% are Computer Science majors, 3.6% are Mathematics majors, 23.9% are other majors including many from engineering fields like Electrical, Mechanical, Aerospace, etc.
  • Students are studying in a variety of fields including Atmospheric Science, Finance, Neuroscience, Economics, Biophysics, Linguistics, Geology, Pharmacy and Real estate.


There were a record number of students submitting proposals for the program this year:
  • 6,626 students (18.2% increase from last year)
  • 121 countries
  • 8,902 proposals submitted


We had a record breaking 51,244 students from 178 countries(!) register for the program this year—that’s a 65% increase in registrations from last year’s record numbers!

In our next GSoC statistics post, we will do a deeper dive into the schools and mentors for the 2020 program.

By Stephanie Taylor, Google Open Source

Season of Docs now accepting technical writer applications

Tuesday, June 9, 2020

The technical writer applications for Season of Docs are now open.

Technical writers can submit project proposals based on the project ideas of participating organizations, or propose their own ideas. Refer to the guidelines on the website for how to create a technical writer application. The technical writer application form is located here.

The deadline for technical writer applications is July 9, 2020 at 18:00 UTC.

What is Season of Docs?

Documentation is essential to the adoption of open source projects as well as to the success of their communities. Season of Docs brings together technical writers and open source projects to foster collaboration and improve documentation in the open source space. You can find out more about the program on the introduction page of the website.

During the program, technical writers spend a few months working closely with an open source community. They bring their technical writing expertise to the project's documentation and, at the same time, learn about the open source project and new technologies.

Mentors from open source projects work with the technical writers to improve the project's documentation and processes. Together, they may choose to build a new documentation set, redesign the existing docs, or improve and document the project's contribution procedures and onboarding experience.

How do I take part in Season of Docs as a technical writer?

First, take a look at the technical writer guide on the website, which includes information on eligibility and the application process.

Explore the list of participating organizations and their project ideas. When you find one or more projects that interest you, you should approach the relevant open source organization directly to discuss project ideas.

Then, read the information on creating a technical writing application and submit it via this form. The deadline for technical writer applications is July 9, 2020 at 18:00 UTC.

Is there a stipend for participating technical writers?

Yes. There is an optional stipend available to the accepted technical writers. The stipend amount is calculated based on the technical writer's home location. See the technical writer stipends page for more information.

What kind of mentor will I be working with?

Season of Docs mentors are not necessarily technical writers, and they may have little experience in technical communication. They're members of an open source organization who know the value of good documentation and who are experienced in open source processes and tools.

The relationship between you and your mentors is a collaboration. You bring documentation experience and skills to the open source organization. Your mentors contribute their knowledge of open source and code. Together, you can develop technical documentation and improve the open source project's processes.

What if I have a full time job and don't have many hours per week to devote to Season of Docs?

In the technical writer application, there is an option to apply for a long-running project, which allows technical writers to complete their project in five months instead of the standard three months. This must be agreed upon with the open source organization before work begins.

If you have any questions about the program, please email us at

General timeline

June 9 – July 9Technical writers submit their proposals to Season of Docs
August 16Google announces the accepted technical writer projects
August 17 – September 13Community bonding: Technical writers get to know mentors and the open source community, and refine their projects in collaboration with their mentors
September 14 – December 5Technical writers work with open source mentors on the accepted projects, and submit their work at the end of the period
January 6, 2021Google publishes the list of successfully-completed projects
See the full timeline for details, including the provision for projects that run longer than three months.

Join us

Explore the Season of Docs website at to learn more about participating in the program. Use our logo and other promotional resources to spread the word. Examine the timeline, check out the FAQ, and apply now!

By Kassandra Dhillon and Erin McKean, Google Open Source

Celebrating 10 years of WebM and WebRTC

Wednesday, May 27, 2020

Originally posted on the Chromium Blog

Ten years ago, Google planted the seeds for two foundational web media technologies, hoping they would provide the roots for a more vibrant internet. Two acquisitions, On2 Technologies and Global IP Solutions, led to a pair of open source projects: the WebM Project, a family of cutting edge video compression technologies (codecs) offered by Google royalty-free, and the WebRTC Project building APIs for real-time voice and video communication on the web.

These initiatives were major technical endeavors, essential infrastructure for enabling the promise of HTML5 with support for video conferencing and streaming. But this was also a philosophical evolution for media as Product Manager Mike Jazayeri noted in his blog post hailing the launch of the WebM Project:
“A key factor in the web’s success is that its core technologies such as HTML, HTTP, TCP/IP, etc. are open and freely implementable.”
As emerging first-class participants in the web experience, media and communication components also had to be free and open.

A decade later, these principles have ensured compression and communication technologies capable of keeping pace with a web ecosystem characterized by exponential growth of media consumption, devices, and demand. Starting from VP8 in 2010, the WebM Project has delivered up to 50% video bitrate savings with VP9 in 2013 and an additional 30% with AV1 in 2018—with adoption by YouTube, Facebook, Netflix, Twitch, and more. Equally importantly, the WebM team co-founded the Alliance for Open Media which has brought the IP of over 40 major tech companies in support of open and free codecs. With Chrome, Edge, Firefox and Safari supporting WebRTC, more than 85% of all installed browsers globally have become a client for real-time communications on the Internet. WebRTC has become a stable standard and it is now the default solution for video calling on the Web. These technologies have succeeded together, as today over 90% of encoded WebRTC video in Chrome uses VP8 or VP9.

The need for these technologies has been highlighted by COVID-19, as people across the globe have found new ways to work, educate, and connect with loved ones via video chat. The compression of open codecs has been essential to keeping services running on limited bandwidth, with over a billion hours of VP9 and AV1 content viewed every day. WebRTC has allowed for an ecosystem of interoperable communications apps to flourish: since the beginning of March 2020, we have seen in Chrome a 13X increase in received video streams via WebRTC.

These successes would not have been possible without all the supporters that make an open source community. Thank you to all the code contributors, testers, bug filers, and corporate partners who helped make this ecosystem a reality. A decade in, Google remains as committed as ever to open media on the web. We look forward to continuing that work with all of you in the next decade and beyond.

By Matt Frost, Product Director Chrome Media and Niklas Blum, Senior Product Manager WebRTC

Google Cardboard XR Plugin for Unity

Tuesday, May 26, 2020

Late in 2019, we decided to open source Google Cardboard. Since then, our developer community has had access to create a plethora of experiences on both iOS and Android platforms, while reaching millions of users around the world. While this release has been considered a success by our developer community, we also promised that we would release a plugin for Unity. Our users have long preferred developing Cardboard experiences in Unity, so we made it a priority to develop a Unity SDK. Today, we have fulfilled that promise, and the Google Cardboard open source plugin for Unity is now available via the Unity Asset Store

What's Included in the Cardboard Unity SDK

Today, we’re releasing the Cardboard Unity SDK to our users so that they can continue creating smartphone XR experiences using Unity. Unity is one of the most popular 3D and XR development platforms in the world, and our release of this SDK will give our content creators a smoother workflow with Unity when developing for Cardboard.

In addition to the Unity SDK, we are also providing a sample application for iOS/Android, which will be a great aid for developers trying to debug their own creations. This release not only fulfills a promise we made to our Cardboard community, but also shows our support, as we move away from smartphone VR and leave it in the more-than-capable hands of our development community.

If you’re interested in learning how to develop with the Cardboard open source project, please see our developer documentation or visit the Google VR GitHub repo to access source code, build the project, and download the latest release.

By Jonathan Goodlow, Product Manager, AR & VR

Knative elects new Technical Oversight Committee members

Monday, May 18, 2020

Towards the end of 2019, Knative project initiated a series of changes to its governance to ensure sustainability in the long term. Over the last week, the project reached a new milestone by successfully wrapping up its first Technical Oversight Committee (TOC) elections, bringing more vendor diversity to the technical stewardship of Knative.

Google has grown thousands of open source projects throughout the years, and it is this collective knowledge that informed the changes proposed to Knative governance. Over the last six months, we worked together with the other members of the Knative Steering Committee, and with the project’s contributors to create a clear set of rules for technical leadership and governance, describing the many ways in which contributors could engage with the project. This process was key to developing trust with Knative’s community, the project’s most valued stakeholder. In the exercise of this vote, the community was able to test the new election process, which proved to be solid: it will be repeated annually for this project, and can serve as a model for other projects as well.

The TOC election, which had a turnout of 70% of active contributors to the project, yielded a new technical stewardship for Knative, with members representing RedHat, VMWare and Google, as follows:

Nghia Tran (Google) - new member
Markus Thömmes (Red Hat) - new member
Grant Rodgers (Google) - new member
Matt Moore (VMWare) - existing member
Evan Anderson (VMWare) - existing member

Members of Knative TOC not only have the technical stewardship of the project in their hands for the next two years, they also model the community’s values: they have strong technical skills, they contribute to the project, and they are collegial, mentoring other contributors and helping the project to grow in a sustainable and healthy way.

We celebrated this important milestone for Knative at the last community meetup. Watch the video to meet the new TOC members, and check out the contribution guidelines to join the project.

By María Cruz, Google Open Source

SoD: experiences and tips for participation

Thursday, May 14, 2020

Have you ever heard about a program that lets technical writers contribute to open source documentation? Towards this effort, Google launched its pilot program for Season of Docs (SoD) around April 2019. SoD immediately caught my attention because it is the first-ever program that seamlessly brings tech writing to the open source world. By carefully selecting open source organizations and their projects, SoD allows seasoned or aspiring technical writers around the world to work closely with an open source organization, and understand their open source product, processes, and tools.

Luckily, I discovered SoD 2019, submitted my application—and after being selected to work for Tor—started my journey into the world of open source. I successfully completed my project in March 2020, and my project report was called out on the Results page for SoD 2019 that lists all successful contributions.

Now in its second year, SoD has gained momentum and is the talk of most technical writing communities and student circles. For the benefit of SoD aspirants, I am recounting my participation experiences along with useful tips in this blog post. I have included answers to questions that I am frequently asked, along with some simple tips to help you successfully complete your project.
  • Firstly, all aspiring participants for SoD 2020 must go through the program and its timeline hosted on the Season of Docs website. Make sure you read the Technical writer guide to understand the different phases of the program.
  • It’s a common myth that only seasoned technical writers who have coding knowledge are at fit for this program as SoD 2019 saw a lot of students participating in the program. Experienced technical writers or even students, who can show their interest in tech documentation are free to participate. From the highly to moderately technical projects available, you can opt for a project depending on your expertise and knowledge.
  • During the application phase, try to shortlist organizations closest to your domain knowledge and work area, and submit project proposals for two or three organizations. This increases your chance of being accepted by an organization. I shortlisted Tor and Hydra because of my interest in anonymous communications and my experience of working with APIs.
  • Before submitting your proposal, it’s a good idea to establish interaction with the org mentors to understand if you’re going in the right direction with your project proposal and most importantly to break the ice for future communications. I found some interesting project ideas and reached out to the mentors to understand their expectations of the project before submitting my application. In hindsight, this proved to be extremely valuable, as I was able to fine-tune my proposal in collaboration with my mentor, and I had already built a rapport with them.
  • Build your project proposal based on whether you’re opting for a three- or a five-month program. Break down details by months and weeks, which will testify your commitment to the project. I had chosen a standard three-month long project and detailed my work by months. When scoping your project, always allow time for roadblocks and unforeseen situations.
  • After your proposal is selected by an organization, it’s community-bonding time. Take this phase seriously and use this time to get to know your peers in the organization, build a rapport with your mentors, set up a communication channel with them, and prepare your work environment. My project proposal for Tor was accepted, and my mentors reached out to me to quickly get me up-to-speed with their communication tools, meeting timings, and smoothly inducted me into the networking team that I was going to work with. Even before I started working on the project, I was attending their weekly meetings and learning more about the work they do.
  • During the doc development phase, try to accomplish everything you promised in your proposal. At the same time, don’t feel bogged down by any changes that arise due to the complexity of your proposal. I faced hiccups during this phase because some of my ideas were not possible to implement and I had to rescope my proposal. Thanks to the invaluable support from my mentors and my peers at Tor, I was able to overcome all the obstacles and move forward with my project. The key to overcoming hurdles during your project is to keep your mentors updated about your work with frequent communication.
  • Once the work’s done complete your project report which will serve as the final assessment. Ensure that this report clearly shows all the work you’ve done; nothing is too big or too small to highlight in this report. A well-written report is more important than your project proposal as this decides whether your project has been successful. Based on this report, your mentor gives you a pass or fail mark for your project.
  • If your project is successful, you receive a stipend at the end of the program if you opted for one. Choosing to opt out of the stipend does not increase your chances of being selected to the program. This depends solely on your project proposal and your efforts at bonding with the chosen communities before applying.
For any more questions or concerns that you may have at any point in the program, I’d suggest looking up the FAQ for technical writers. You can also give a shout out to the extremely helpful program admins at

I hope I have inspired SoD 2020 applicants to make their participation successful. I wish each one the very best.

By Swati Thacker, guest writer from Oracle

Insights from mixing writers with open source

Wednesday, May 13, 2020

The OSGeo Foundation participated in Google’s first Season of Docs, where Google sponsored technical writers to contribute to open source projects. The Open Geospatial Foundation (OSGeo), is an umbrella organization for around 50 geospatial open source projects. I’ve contributed to a number of these projects over the years and co-mentored the two Season of Docs technical writers allocated to us.
Screenshot from the OSGeoLive distribution we've been documenting, available under a CC-By license.
During our involvement we discovered that, like many open source projects, we knew little about:
  • The state of our docs.
  • What we were aiming for.
  • What our priorities were.
  • The details of the challenges we faced.
  • How to improve.
We learned:
  • How hard it is to keep tech docs current.
  • Skillsets from multiple roles are needed to create good docs.
  • Open source’s docs and writing processes are immature when compared to software development.
It is an exciting problem space with high-value challenges ready to be tackled. It reminds me of the early days of open source before it became trendy with business.

What should tech writers work on?

Open source communities welcomed the chance to have tech writers improve our docs, and expressed a pressing need for it, but found it challenging to articulate what exactly needed fixing.
  • People explained that their project docs often hadn’t been updated between doc releases.
  • Some projects had noticed new features that had not been documented.
  • Other projects had issue lists—collating observed deficiencies—but had no systematic review.
  • Most observed that docs were created by developers with no formal tech writing training.
  • Many noted that docs written by non-native language speakers and would benefit from grammatical review.
But where should we start? We needed to decide on what we wanted, what we should work on first.

What’s the definition of good docs?

And then we realized that we didn’t have a good definition of “good documentation.” For our software projects, we have a comprehensive incubation process to assess the maturity of software and the project’s community, but we couldn’t find a similar set of metrics to define “good documentation.” So we started TheGoodDocsProject, to collate “best-practice templates and writing instructions for documenting open source software.” This helped us define what we were aiming for, and prioritize what we can achieve with our available resources.

Documentation audit

Once we knew what good docs looked like, we were then able to audit the status of project’s docs:
  • What documentation do we have?
  • Does it cover all the functionality?
  • Does it cover end-user needs?
  • Is the documentation any good?
We discovered that the quality, currency, and completeness of our OSGeo docs were immature when compared to the quality software they described.

It takes a village to raise good docs

In researching open source projects’ documentation needs, it’s become clear that crafting good docs requires multiple skillsets. Ideally, a doc team would have access to:
  • A developer with a deep understanding of the software being described.
  • A software user who’s able to explain the application within the context of the application’s domain.
  • An educator who understands the principles of learning.
  • An information architect who understands how to structure material.
  • A writer who writes clearly and concisely with good grammar.
  • A translator who can translate docs into multiple languages.
  • A DevOps person who can set up doc build pipelines.
  • A community builder, facilitator, and coordinator, who can inspire collective action, capture offers of help, and help all these different personas collaborate together.
Technical writers usually have a high-level understanding of most of these domains and their skills are often under-appreciated and under-utilized, especially if directed with a vague “just clean up the grammar and stuff”. The best docs typically have been influenced by multiple stakeholders, which can be partly achieved using templates to collaborate between domains, timeframes, projects and organizations.

Tools for documenting open source projects are painful

We experienced significant difficulties trying to convert between writing and software toolsets. We love the versioning of git, are frustrated by clunky Markdown interfaces, and want access to editing and review workflows of Word and Google docs, along with grammar and syntax plugin tools such as Grammarly. Translation tools such as Transifex are pretty cool, too.

If a project were to address this use case, it would be an awesome gift to the open source community. Having someone write an application which addresses this use case would be helpful. Maybe there is an idea in here for a future Google Summer of Code?

Achievements during OSGeo’s Season of Docs

We’re quite proud of our achievements during OSGeo’s participation in the Season of Docs. Our allocated tech writers have amplified the effectiveness of our existing documentation communities, and our documentation communities have amplified the effectiveness of these tech writers.
  • Felicity Brand worked with around 50 of OSGeo’s open source projects to update their Quickstarts as part of our OSGeoLive distribution of software.
  • Swapnil Ogale worked directly with GeoNetwork’s documentation team, auditing the breadth of docs, and their quality, setting up templates for future docs to work towards, and updating a number of the docs.
  • We kicked off TheGoodDocsProject—“Best practice templates and writing instructions for documenting open source software.”
  • In conjunction with the OGC and ISO spatial standards communities, we kicked off an OSGeo Lexicon project, to coordinate official definitions for terminology used within the OSGeo context. This will apply best practice definitions to prior haphazard glossaries.
  • We did a deep-dive analysis of the documentation challenges faced by QGIS, one of OSGeo’s most successful projects. Surprisingly, their biggest problem isn’t a lack of tech writers or complicated tools (although they are factors). The key problems center around:
    • Poorly capturing community goodwill and offers of assistance.
    • A lack of direction.
    • Struggling to keep up with a rapidly evolving software baseline.
    • Insufficient writing expertise.
    • A high technical barrier to entry.
    • Documentation and training being generated outside of the core project.
    • Awkward documentation tools and processes.

Season of Docs 2020

Does tech writing interest you? If so, check the Season of Docs projects for 2020 and consider taking part.

By Cameron Shorter, Google technical writer and geospatial open source developer

Apache Beam presents its mascot to the world

Tuesday, May 12, 2020

Four years after it graduated from The Apache Software Foundation’s incubator, Apache Beam welcomes a new addition to the family: its mascot, the Beam firefly! Apache Beam is an open source data streaming programming model that runs on the back end of some of your favorite apps. It is the technology behind many popular apps that need to process big data in real time. And the reason it has come this far is the community of developers that contribute to this open source project every week. In the last few months, we worked with Apache Beam contributors to collaboratively design a mascot for the project—a creative asset that can represent the values of the project and attract new users and contributors—to keep growing the project and expanding its reach.

In these four years, the Apache Beam project has been a busy… firefly. According to the Apache Software Foundation’s 2019 Annual Report, Beam ranks fourth in the top five most active projects by commits, and it ranks first in the top five most active dev@ mailing list, showing a strong and transparent communication exchange within the community of developers. On top of that, 53 Meetup groups across the globe are directly or indirectly connected to sharing knowledge about Apache Beam use cases, applications and functionalities.

With this much momentum and enthusiasm for this project, it was a good opportunity to cement some of Apache Beam’s most valued characteristics, to help raise awareness of this rapidly growing project, and convert more users to contributors. “Projects with a mascot are more relatable. They signal that there is more to the project than its technical vision. It signals that there is more to the project than its code,” said project contributor Maximilian Michel. In November of last year, the community discussed adopting a mascot and as a result, 11 animal ideas emerged for a possible mascot: beaver, hedgehog, lemur, owl, salmon, trout, robot dinosaur, firefly, cuttlefish, dumbo octopus, and angler fish. After 48 contributors expressed their vote, the collective decision was a firefly. In January of this year, artist Julián Bruno set out to bring the mascot to life. There were four rounds of feedback on different iterations of the mascot, plus a final vote, where 18 people participated; Engagement increased with every new round. In the end, this process produced an original mascot, a model sheet (so that anyone may reproduce it), and two adaptations of the Beam firefly: one where it is learning, and one where it is doing what it does best… stream data! You can read more about this process on the Apache Software Foundation’s blog.

In a year that has presented a lot of challenges to bring people together, working on the mascot project with the Apache Beam community was refreshing, and felt like a medium for contributors to connect beyond code and technical questions. It is our wish that Apache Beam continues to grow as a project, and we hope to continue to support its community to: support newcomers, share what works, and collaborate with others to build great solutions.

By María Cruz, Google Open Source

Season of Docs announces participating organizations for 2020

Monday, May 11, 2020

Season of Docs has announced the 50 participating open source organizations! You can view the list of participating organizations on the website.

During the technical writer exploration phase, which runs from now until June 8, 2020, interested applicants explore the list of participating organizations and their project ideas. They should reach out to the organizations to gain a better understanding of the organizations and discuss project ideas before applying to Season of Docs. Technical writer applications open on June 9, 2020 at 18:00 UTC. 

For more information about the technical writer exploration phase, visit the technical writer guide on the website.

What is Season of Docs?

Documentation is essential for the adoption of open source projects as well as to the success of their communities. Season of Docs brings together technical writers and open source projects to foster collaboration and improve documentation in the open source space. You can find out more about the program on the introduction page of the website.

During the program, technical writers spend a few months working closely with an open source community. They bring their technical writing expertise to the project's documentation and, at the same time, learn about the open source project and new technologies.

The open source projects work with the technical writers to improve the project's documentation and processes. Together, they may choose to build a new documentation set, redesign the existing docs, or improve and document the project's contribution procedures and onboarding experience.

How do I take part in Season of Docs as a technical writer?

First, take a look at the technical writer guide on the website. The guide includes information on eligibility and the application process.

Then participate in the technical writer exploration phase, create a technical writing application and prepare your application materials. On June 9, 2020 at 18:00 UTC, Season of Docs will begin accepting technical writer applications and publish a link to the application form on the website. The deadline for technical writer applications is July 9, 2020 at 18:00 UTC.

Is there a stipend for participating technical writers?

Yes. There is an optional stipend that technical writers can request as part of their application. The stipend amount is calculated based on the technical writer's home location. See the technical writer stipends page for more information.

If you have any questions about the program, please email us at

General timeline

May 11 – June 8Technical writers explore the list of participating organizations and project ideas
June 9 – July 9Technical writers submit their proposals to Season of Docs
August 16Google announces the accepted technical writer projects
August 17 – September 13Community bonding: Technical writers get to know mentors and the open source community, and refine their projects in collaboration with their mentors
September 14 – December 5Technical writers work with open source mentors on the accepted projects, and submit their work at the end of the period
January 6, 2021Google publishes the list of successfully-completed projects
See the full timeline for details, including the provision for projects that run longer than three months.

Care to join us?

Explore the Season of Docs website at to learn more about participating in the program. Use our logo and other promotional resources to spread the word. Examine the timeline, check out the FAQ, and apply now!

By Kassandra Dhillon and Erin McKean, Google Open Source