Feature toggles (aka feature flags) are a set of patterns that enable dev teams to deliver features to users rapidly and safely. Pete Hodgson leads you on a journey with a dev team as they adopt feature toggles, covering what they are, why they're helpful, and how to use them successfully.

Transport for London (TfL) and WSO2 have been working together on broader integration projects focused on getting the most efficient use out of London transport. Roland Major and Sriskandarajah Suhothayan explain how TfL and WSO2 bring together a wide range of data from multiple disconnected systems to understand current and predicted transport network status.

So you've carefully crafted your first Kubernetes service, and you're ready to deploy it to production. Well, not quite: there are still some important unknowns to understand before your service will …

Susan Sons demonstrates how to refactor complex and possibly very broken systems and software while in operation, covering architecture, project management, and security aspects.

What happens when you take the index out of the database and make it a separate applicationperhaps one that is distributed, scalable, and takes full advantage of modern, multicore, high-memory hardware? Matthew Jaffee has spent the past few years finding out. He shares fruits of his labor: Pilosa, an open source distributed, sparse bitmap index.

Transport for London (TfL) and its partners have been working together on broader integration projects focused on getting the most efficient use out of road networks and public transport. Roland Major explains how TfL brings together a wide range of data from multiple disconnected systems for operational purposes while also making more of them open and available, all in real time.