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Table of Contents

Release Schedule

We push a new release of Prebid.js every other week on Tuesday. During the adoption phase for 1.x, we are releasing updates for 1.x and 0.x at the same time.

While the releases will be available immediately for those using direct Git access, it will be about a week before the Prebid Org Download Page will be updated.

You can determine what is in a given build using the releases page

Announcements regarding releases will be made to the #headerbidding-dev channel in subredditadops.slack.com.

Release Process

  1. Make Sure all browserstack tests are passing. On PR merge to master travis will run unit tests on browserstack. Checking the last travis build here for master branch will show you detailed results.

    In case of failure do following,

    • Try to fix the failing tests.
    • If you are not able to fix tests in time. Skip the test, create issue and tag contributor.

    How to run tests in browserstack

    Set the environment variables. You may want to add these to your ~/.bashrc for convenience.

    export BROWSERSTACK_USERNAME="my browserstack username"
export BROWSERSTACK_ACCESS_KEY="my browserstack access key"

    gulp test --browserstack >> prebid_test.log

vim prebid_test.log // Will show the test results

  2. Prepare Prebid Code

    Update the package.json version to become the current release. Then commit your changes.

    git commit -m "Prebid 1.x.x Release"
git push

  3. Verify Release

    Make sure your there are no more merges to master branch. Prebid code is clean and up to date.

  4. Create a GitHub release

    Edit the most recent release notes draft and make sure the correct tag is in the dropdown. Click Publish. GitHub will create release tag.

    Pull these changes locally by running command

    git pull

    and verify the tag.

  5. Update coveralls

    We use https://coveralls.io/ to show parts of code covered by unit tests.

    Set the environment variables. You may want to add these to your ~/.bashrc for convenience.

    export COVERALLS_SERVICE_NAME="travis-ci"
export COVERALLS_REPO_TOKEN="talk to Matt Kendall"

    Run gulp coveralls to update code coverage history.

  6. Distribute the code

    Reach out to any of the Appnexus folks to trigger the jenkins job.

    // TODO Jenkins job is moving files to appnexus cdn, pushing prebid.js to npm, purging cache and sending notification to slack. Move all the files from Appnexus CDN to jsDelivr and create bash script to do above tasks.

  7. Post Release Steps

    Update the version Manually edit Prebid's package.json to become "1.x.x-pre" (using the values for the next release). Then commit your changes.

    git commit -m "Increment pre version"
git push

Beta Releases

Prebid.js features may be released as Beta or as Generally Available (GA).

Characteristics of a Beta release:

  • May be a partial implementation (e.g. more work needed to flesh out the feature)
  • May not be fully tested with other features
  • Limited documentation, focused on technical aspects
  • Few users

Characteristics of a GA release:

  • Complete set of functionality
  • Significant user base with no major issues for at least a month
  • Decent documentation that includes business need, use cases, and examples

FAQs

1. Is there flexibility in the 2-week schedule?

If a major bug is found in the current release, a maintenance patch will be done as soon as possible.

It is unlikely that we will put out a maintenance patch at the request of a given bid adapter or module owner.

2. What Pull Requests make it into a release?

Every PR that's merged into master will be part of a release. Here are the PR review guidelines.