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General 27 Nov 2024

​Release management: real practices that work

​Release management: real practices that work

Google performs over 500 releases per day across its services. What makes this possible isn't just their size - it's their carefully structured release process. This approach has influenced how many companies handle their releases today.

The real cost of release issues

In 2021, Facebook's configuration error during a routine release led to a 6-hour global outage, costing the company $79 million in lost revenue. Microsoft faced similar challenges 2023 when a Teams update caused worldwide service disruptions, affecting millions of business users.

Proven release patterns

Major tech companies have developed release practices that consistently show results. Google's practice of releasing to a small percentage of users first (their "canary" approach) has become an industry standard.

Netflix's automated deployment system handles thousands of releases per day through their Spinnaker platform, which they've made open source for other companies to use.

Core components

Build automation is no longer optional. GitHub Actions processes over 1.5 billion workflows per month, showing how central automated builds have become part of modern development.

Version control at Amazon goes beyond code - they version their infrastructure through AWS CloudFormation, treating infrastructure changes like code changes.

Real impact of good practices

Etsy reduced their deployment time from hours to minutes by implementing continuous deployment, allowing them to make over 50 daily deployments with a lower error rate.

Twitter's dark launch system lets them test new features under real load conditions before making them visible to users. This helped them successfully launch major features like threads and increased character limits.

When things break

In 2022, Slack released a new message search feature that caused unexpected server load. Their quick rollback system had them back online in 45 minutes, demonstrating the value of practiced recovery procedures.

Current tools making a difference

Feature flags have become central to release management. LaunchDarkly, used by companies like Square and IBM, handles over 20 trillion feature flag evaluations daily, showing the scale at which modern release controls operate.

Moving forward

The trend is clear: releases are becoming more frequent and more automated. CircleCI's 2023 State of Software Delivery report shows that the most successful teams deploy 25 times more frequently than average teams.

What changes could you make to your release process this week? Start with one improvement - data shows that's how lasting change happens.

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