Systems | Development | Analytics | API | Testing

The fundamentals of React Native over-the-air updates shouldn't sit behind a paid tier. Today we're shipping three additions to Bitrise CodePush: delta updates that help significantly reduce the size of your updates, CodePush code signing so you can secure every package you push to your users’ devices, and a dedicated Bitrise CI Step that publishes updates straight from your workflow. All three are available to every CodePush user, including everyone on the free plan.

Android app crashes will cost us users and damage our Play Store ranking. To prevent them from happening, we need to understand the most frequent causes of crashes, read the stack trace effectively, and have plans for common painpoints such as null values. This article will give you the tools to do that.

Self-hosting OTA updates became common after App Center and CodePush shut down in 2025. CodePush had been the popular free option, but the remaining hosted services easily hitting five or six figure bills for popular apps. For staging-only or use with small user bases, self-hosting is fairly straight forwards. But, as the user base grows, the architecture can start to struggle and bolt on pieces are required.

React Native OTA tools in 2026 split across two clients, Expo Updates and CodePush-style, and two ways of running them, hosted or self-hosted. The clients are not interchangeable. You still need the matching SDK.

The Configuration YAML view in the Bitrise Workflow Editor now reads your entire bitrise.yml, and tells you while you type whether it's correct for your project. That means real-time validation, autocomplete, hover docs, and go-to-definition/references for anyone who edits bitrise.yml by hand. No install, no setup, available on every plan down to Hobby.

An effective JavaScript debugging process is vital for any web developer. Over 95% of the web is built with JavaScript code, but the language carries its own distinct challenges due to its unique runtime model. This guide will help you master these challenges and become truly fluent in the Internet’s first language. You’ll learn about: You’ll leave with a process that works in any case, no matter how edgy.

If your builds on Bitrise target the Xcode 15.x stacks, you must switch to a supported stack before September 16, 2026.

Swift arrays are one of the most commonly used collection types in iOS and macOS development. They provide ordered, type-safe storage for values and include powerful higher-order functions such as map, filter, reduce, and sort. With value semantics, copy-on-write optimisation, and a rich set of built-in operations, Swift arrays make it easier to write safe, efficient, and expressive code. This guide will empower you to master the basics of Swift arrays and explore all the functionality they provide.

The pull request looked perfect. Two approvals, clean diff, all checks green. The team shipped it Thursday afternoon. By Friday morning, support tickets were coming in. On a popular mid-range Android device, the new checkout button rendered behind a promotional banner: visually present but physically untappable. Every reviewer read that code, yet none of them could have caught it, because the defect was never visible in the diff. It only ever appeared on the device.