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By Balazs Hajagos
A React Native build is really two builds stacked on top of each other. On Android, Gradle compiles your Kotlin and Java, then drops down into cmake and ndk-build to compile the C++ that ships inside Hermes, Folly, ReactCommon, and your own turbo modules. On iOS, Xcode does the equivalent: Swift and Objective-C on top, the same C++ underneath via Clang. Two build systems, two languages on top, one shared set of C++ underneath.
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By Zsolt Márta
Build Cache can meaningfully shorten CI feedback loops, but only if it’s connected to workflows where it’ll actually make a difference. So how do you figure out which workflows will benefit? That’s the part that’s been easy to get wrong — until now. Quick Connect is a new feature that takes the guesswork out of estimating time savings: it looks at your last 30 days of build data and surfaces the workflows that will benefit themost from caching.
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By Miklós Tóth
WWDC 2026 delivered plenty for app developers to talk about, but some of the most consequential announcements were aimed squarely at the people running the infrastructure underneath. We've already covered the under-the-radar announcements for iOS developers and what Xcode 27's Device Hub means for CI/CD. This one is for the fleet operators. If you run Mac infrastructure at any scale, the Virtualization framework is already part of your life. On Apple Silicon, it's the only way to run a macOS guest.
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By Ben Boral
If you're building iOS apps on Bitrise and using one of the Xcode 26 edge stacks, you must switch to the Xcode 26 stable stack before July 31, 2026.
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By Arpad Kun
AI-assisted builds grew 164x in a year. The rate teams ship to users fell by a fifth. Arpad Kun, VP of Engineering and Infrastructure at Bitrise, on the gap that opened up in between, and what his team built to close it.
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By Gabor Nadai
An outdated build environment can slow down your team, introduce security risks, and cause hard-to-debug issues. With our upgraded Linux stacks, you get a faster, more secure, and fully maintained build environment: so your team can focus on shipping great apps, rather than managing infrastructure. Ubuntu Noble 24.04 - Bitrise 2025 Edition is now available as a stable stack, bringing Noble Numbat as the default Ubuntu version to Bitrise.
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By Oliver Falvai
At WWDC 2026, Apple shipped a long list of changes, and we covered the ones flying under the radar in our round-up of the less-reported announcements. One of them deserves a closer look on its own: the way Xcode 27 reshapes how developers manage devices and simulators. Xcode 27 ships with a new app called Device Hub, replacing Simulator.app found in older Xcodes. Device Hub is where both physical devices and simulators can be managed from now on.
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By Ben Boral
WWDC 2026 delivered plenty to talk about. Apple's renewed AI push, Xcode 27 (that we shipped to customers in beta within 24 hours of the keynote!), and refreshing Liquid Glass. It also delivered a notable absence: no M5 Mac minis yet, which we covered separately. Now that the dust has settled, Bitrise’s Ben Boral went looking for the announcements that slipped past the highlight reel. If you're a mobile developer, these three are worth your time.
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By Catherine Doyle
Apple didn't announce the M5 Pro at WWDC, and the M4 Pro Mac Mini industry shortage isn't going anywhere either. Neither should affect your CI. Apple pulled the base model from its store and discontinued the 32GB config. What's still available ships in weeks with some configs months out. Resellers are asking $979 for $599 machines and Tim Cook confirmed the constraints will last several more months.
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By Naveen Nazimudeen
Last year, Nathan Hillyer's iOS platform engineering team at ForeFlight had self-hosted Mac hardware in their office, two engineers keeping them alive, and a codebase with over 2 million lines of Objective-C, Swift, and C++. Every Xcode update was a fire drill. Every capacity spike during a merge meant somebody was physically racking hardware in the Austin office. ForeFlight didn't want a new CI system. They wanted to stop being a data centre.
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By Bitrise
Get your iOS app working with recently released Xcode 27 beta using Claude Code running in an RDE. Spin up a trial, and try for yourself! You can power your Agentic AI Development Loop with Bitrise Remote Developer Environments (RDE). Cloud VMs that run on the same infrastructure as Bitrise CI used and trusted by thousands of mobile customers.
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By Bitrise
Maven Central introduced rate limits for high volume users. Bitrise is protecting its users from rate limiting errors on dependency resolution by hosting a repository manager, a sort of pull-through cache, to reduce load on Maven Central and provide faster dependency downloads. This is enabled by default at not additional cost for all Bitrise hosted builds.
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By Bitrise
Learn how to leverage Bitrise Build Cache to reuse build outputs and compilation data in your React Native projects. This guide from Lex Zavala walks you through the essential steps for configuring Build Cache for React Native: adding the required workflow steps, configuring command-line prefixes for better data segmentation, and using the Bitrise dashboard to track cache hit rates and invocation durations for every build.
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By Bitrise
With all the online chatter about Copy Fail, DirtyFrag, and Fragnesia, we prepared this simple explainer about what these local privilege escalation vulnerabilities are and how they affect Bitrise customers. Bitrise provides a full-stack, vertically integrated mobile DevOps solution that unites the tools, processes and testing frameworks engineering teams need to build best-in-class mobile experiences. Over 400,000 developers use Bitrise’s products: Bitrise CI, Build Cache, Release Management, and Insights.
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By Bitrise
Bitrise Build Hub: A drop-in replacement for GitHub's macOS runners. The largest dedicated Apple Silicon fleet for mobile CI/CD. M4 Pro Apple Silicon with 54GB RAM, Xcode updates within 24 hours, co-located build cache. One line of YAML. Bitrise provides a full-stack, vertically integrated mobile DevOps solution that unites the tools, processes and testing frameworks engineering teams need to build best-in-class mobile experiences. Over 400,000 developers use Bitrise’s products: Bitrise CI, Build Cache, Release Management, and Insights.
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By Bitrise
In this fast demo, Naveen Nazimudeen walks you through the Bitrise AI features. Unlike typical agents that only suggest changes, Build Fixer applies the fix for you, then runs a build to validate and opens a PR. Code Reviewer automatically reviews new PRs with zero noise. Bitrise provides a full-stack, vertically integrated mobile DevOps solution that unites the tools, processes and testing frameworks engineering teams need to build best-in-class mobile experiences. Over 400,000 developers use Bitrise’s products: Bitrise CI, Build Cache, Release Management, and Insights.
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By Bitrise
In this five-minute video, we answer four key questions about CodePush in Bitrise Release Management and how it helps React Native teams ship updates instantly without waiting for App Store or Google Play review. If you want to learn more, join our live webinar on April 9th (or watch it on-demand later)!
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By Bitrise
In this demo, Naveen Nazimudeen, Solutions Engineer at Bitrise, explores the Build Details page and shows how to quickly get to the root cause of a failed build. He looks at key tabs like Build Logs, Tests (including flaky test detection and quarantine), Artifacts, Build Cache, and VM Monitoring for performance and out-of-memory debugging.
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By Bitrise
Pipelines allow you to organize your CI/CD tasks into modular workflows that can run sequentially or in parallel. In this demo, Senior Solutions Engineer Ben Boral shows a simple pipeline that runs a fast linting check first, then executes two test suites in parallel to reduce wall clock time, and gates the build step on the success of those tests - speeding up the feedback loop and avoiding wasteful tasks.
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By Bitrise
See what the Bitrise Step Library can do for you with Senior Solutions Engineer Ben Boral. Instead of relying on custom scripts for functionality, you can use these off-the-shelf components to quickly build a workflow. These steps are open source, allowing you to view their code, fork them, and make changes, or you can write a custom script directly in the Workflow Editor.
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By Bitrise
With the holidays coming up, teams may already have started the season's annual code freeze to avoid downtime, unexpected bugs, crashes, or faulty releases. In this whitepaper - featuring mobile engineers behind popular shopping apps - we dive into the latest tendencies, main motives, and technical decision-making factors behind this practice, and discuss whether there's a better way of going forward.
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Bitrise is a Continuous Integration and Delivery (CI/CD) Platform as a Service (PaaS) with a main focus on mobile app development. It saves developers hours every day by automating tasks that are boring and repetitive from the moment they finish coding till the app lands in an app store. These tasks include unit tests, distributing apps to testers and submitting apps to stores automatically.
Thanks to its open source library with 180+ integrations, developers can seamlessly connect all the tools they love and use for testing, distribution, notification and more. The former Y Combinator startup has already raised over $3.5M and became the choice of mobile CI/CD platform of companies like InVision, Mapbox and Duolingo.
Features you must love:
- Automatic code signing: We know that iOS code signing is a pain. Connect your Apple Developer Account and let us handle your profiles. Just set the export method and you’re good to go, no messing about.
- Bitrise deployment: Bitrise integrates with all the major third party beta testing and deployment services, but we wanted to provide an integrated solution to help you distribute your apps to your testers without the need of registering yet another account after signing up to Bitrise.
- Support by devs for devs: We don’t just have a support staff, we have engineers, and you can talk to them whenever you want. Provided they aren’t on a space walk or having tea with a Klingon (i.e. virtually always!)
- Smart caching done fast: Bitrise automatically configures caching right at project setup for all your dependencies. Adding source code or derived data caching is only a few clicks so you could go out bragging about your superfast build times.
- Security with no compromise: Every build runs on its own virtual machine, and all data is discarded at the end of the build. We also hired sharks with laser beams on their head, just in case. Click for our detailed security policy.
- Fast and reliable emulators: Run your Android UI tests on solid and snappy virtual devices. Bitrise fully integrates with Firebase Test Lab, showing your test reports with videos and screenshots right on the build’s page.
Continuous Integration and Continuous Delivery for mobile apps.