UI Breadcrumbs for Android Error Events

In [many] cases, when a crash happens in your Android application, you want more context on what occurred before the issue — kind of like following breadcrumbs ...

How to monitor Lambda functions in your SST application

Jay V is one of the founders of Serverless Stack (SST), an open-source framework that makes it easy to build serverless apps. He spends his time trying to figur...

2021: A Year in Review

The last year has undoubtedly been a challenge for all of us. But humor us one final retrospective as we (happily) leave 2021 in the dust. Our mission remains t...

Deprecation From U2F API to WebAuthn

If you’re using the U2F API for registration and authentication of your U2F devices, you will notice a dire situation is coming soon: Google Chrome will no long...

Yes, Open Source Is Sustainable

Two months ago, we announced our annual investment in open source maintainers, mostly folks whose work we depend on to deliver Sentry to you, plus a few researc...

Sentry's response to Log4j vulnerability CVE-2021-44228

Sentry is not impacted by the log4j vulnerabilities, CVE-2021-44228 or CVE-2021-45046, also known as log4shell. On December 9th, 2021 CVE-2021-44228 was announc...

Bytecode transformations: The Android Gradle Plugin

This is the first part of a blog post series about bytecode transformations on Android. In this part we'll cover different approaches to bytecode manipulation i...

Prioritize the Right Performance Monitoring Metrics

Now every developer can customize the performance monitoring charts and data views on the Performance page to see what is most important to them and their team,...

Bringing Specto into the Sentry Family

We’re delighted to announce that we’ve acquired Specto, a powerful mobile profiling tool from ex-Facebook mobile experts who share our determination for buildin...

Monitoring our Local Development Environment with Sentry

At Sentry, we’re always looking for innovative ways to dogfood our product. Over the last year we added Sentry’s error monitoring to our developer environment s...

Measure, Track, Improve: Streamlined event exploration and increased visibility into team health

For many engineering leaders, measuring their team’s impact can be hard to quantify and a face:palm process, filled with searching through logs and exporting da...

Change Happens - Get Alerted

To give you enough notice to fix an issue before it escalates, we’re evolving our alerts and making them more proactive with Change and Crash Rate Alerts. So wh...

Keep Gamers Gaming — Application Monitoring for Unity

Given the millions of registered Unity developers worldwide, Unity is arguably the most popular engine used to develop games. But, whether you’re building the ...

We Just Gave $154,999.89 to Open Source Maintainers

Sentry is an Open Source-aligned company. We started out in 2008 as a small open source side project, and we grew within the community for years before commerci...

Automate, Group, and Get Alerted: A Best Practices Guide to Monitoring your Code - Part 2

Missed part one? Check out the full guide here. As companies grow, so do their products, teams, and the number of external tools. For engineers, that can mean c...

Hacktoberfest is Upon Us

Ah, October. Pumpkin spice fills the nostrils of Northern Hemispherians, spring stirs the air in the South, and DigitalOcean & Friends bring us yet another inst...

Automate, Group, and Get Alerted: A Best Practices Guide to Monitoring your Code - Part 1

*Missed part two? Check out the full guide here As companies grow, so do their products, teams, and the number of external tools. For engineers, that can mean c...

Find the right person at the right time to fix the right issue with SCIM for Okta, Code Owners with GitHub, and more

If you know someone who actually likes managing work across projects, we’d love to meet this mythical being. Because we can’t imagine who enjoys hand-sifting th...

Use Suspect Tags to improve App Performance

When you’re optimizing your application for performance, it helps to understand the user conditions where the slowest transactions occurred, such as OS, browser...

Performance Monitoring in GraphQL

Enrique Fueyo Ramírez is the Co-founder and CTO of Lang.ai. Here's a post on how him and his team at Lang.ai instrumented performance monitoring for GraphQL res...

Four Mobile Vitals Every Mobile Developer Should Monitor

Slow apps frustrate users, which leads to bad reviews, or customers that swipe left to competition. Unfortunately, seeing and solving mobile performance issues ...

Distributed Tracing 101 for Full Stack Developers

In the early days of the web, writing web applications was simple. Developers generated HTML on the server using a language like PHP, communicated with a single...

Guest Post: Troubleshooting Feature Flags with Komodor and Sentry

Mickael Alliel is a DevOps Engineer who enjoys experimenting with new technologies and methodologies. Mickael is currently developing the next-gen K8s troublesh...

Sentry's New Mobile App for Managing Releases

Once a year we let our imagination go wild for a whole week during our annual Hackweek event. It's where we come up with product updates, like dark mode support...

Instrumenting Our Frontend Test Suite (...and fixing what we found)

Adding Instrumentation to Jest Here at Sentry, we like to dogfood our product as much as possible. Sometimes, it results in unusual applications of our product ...

Root out the odd operation with Operations Breakdown

Transactions are sent when your service receives a request and sends a response, like an API call or a page load. Within each transaction is a series of operati...

Become A Hidden Champion. Work With Me In Vienna.

A term of business endearment — if there is such a thing — is to call a company a hidden champion. It’s bestowed on businesses who quietly sustain their success...

Jamstack June: A Recap

Like any jam session, Jamstack June must end. But not before we reprise a few of our greatest licks of the month: Our Next.js SDK monitors your Next.js projects...

Why Debugging JavaScript Sucks — And What You Can Do About It

What makes JavaScript great is also what makes it frustrating to debug. Its asynchronous nature makes it easy to manipulate the DOM in response to user events, ...

Jamstack, Next.js, Netlify, and Sentry: How The Pieces Fit

Jamstack (Javascript + APIs + Markup) is a web architecture that combines the convenience of pre-built websites with the capacity to handle custom APIs and serv...

Find the Root Cause Faster with Trace View and Trace Navigator

Like a bratty teenager, traditional monitoring answers your questions, but does so in a terse, unhelpful manner: Why is my page slow? Guess it’s the API call. I...

Sentry Application Monitoring for Next.js

As you could probably tell from the title, we shipped an SDK for Next.js. This means you can capture errors, measure performance, manage releases, configure sus...

Better Alerts [as in, far more specific and just generally way better]

A couple of weeks back, we broke sign-ups. And in the most meta fashion, we learned about this because someone here had the foresight to set up an alert in Sent...

Dogfooding Chronicles: Never Be Content With Your Content (Security Policies)

As the Internet evolves, so must our security mechanisms. It’s why same-origin policies (a Netscape-era directive in which resources from one origin are unable ...

Establishing the New Normal in Pandemic-Aftertimes

[Three Hundred and Eighty-One] [Three hundred and eighty-one]. The number of days it's been since our Sentry offices shut down, in what we believed at that time...

No-code AWS Lambda Monitoring

Auto-instrumenting AWS Lambda Monitoring didn’t originate through a focus group or business plan. It started as a hackathon project that addressed the tedium of...

Great Moments in Application Monitoring

The consequences of poor application performance are both real and terrifying: lost customers, lost trust from your team, and lost confidence in your abilities....

Measuring Success with Sentry

In the early days of web development, there was one way to measure code: WTFs per minute. It was a metric that could be applied across all languages, as every d...

Supporting Native Android Libraries Loaded From APKs

Like mechanics who restore their own cars or plastic surgeons who self-rhinoplasty, our developers put their skills to interesting uses during their free time. ...

Measuring User Experience with Web Vitals

Top of search for you means top of mind for your customers. And with Google’s upcoming Page Experience update to Web Vitals taking place in a few weeks, now’s t...

Silencing Distractions with Review List and Automations

Responding to and ignoring notifications can be a full-contact sport. It makes sense, though, from GitHub, Slack, to Jira and Sentry; our world revolves around ...

Slow and Steady: Converting Sentry’s Entire Frontend to TypeScript

Recently, Sentry converted 100% of its frontend React codebase from JavaScript to TypeScript. This year-long effort spanned over a dozen members of the engineer...

Using Feature Flags in Sentry

From testing in production to running A/B tests, feature flags have a range of uses. At Sentry, one way we use feature flags is to safely allow beta access to n...

A Sanity Listicle for Mobile Developers

Just like that Mobile March Madness 2021 is almost in our rearview. Before we look to April, let’s recap some of our most notable mobile updates from this past ...

Using Sentry Performance To Make Sentry Performant

Like many companies, Sentry uses feature flags to determine when certain users see certain features. Recently, we decided to switch our feature flag software to...

Performance Monitoring for Android Applications

Android is arguably the most ubiquitous operating system in the world. Whether it's a tablet, phone, folding phone, computer, TV, or IoT device, chances are you...

Building Dark Mode

Like many companies, we have a Hack Week at Sentry. In 2017, we coded an app which blared entrance music for anyone who stepped foot in our office. In 2019, we ...

Performance Monitoring Support for React Native

March Mobile Madness continues with Performance support for React Native. Our friend, Jenn Mueng shares how Performance supports his mobile appliction. In addit...

Issue Detail Performance Improvements

One of Sentry’s most-trafficked pages is our issue details page, as it helps our customers understand the root cause of an error. For those of you who are new t...

With Flutter and Sentry, You Can Put All Your Eggs in One Repo

This month we’re updating several of our mobile SDKs. You might think it’s madness… Mobile March Madness. First up is Flutter. It’s fair to say that all of us h...

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