We're kicking off our annual year-end roundup with a look back at the Linux content that engaged our readers the most in 2023. Linux remains a dominant player in the cloud thanks to its stability and flexibility, and Red Hat Enterprise Linux (RHEL) continues to evolve for the containerized future, with the General Availability release of RHEL 9.3 last month.
Our 10 most popular Linux articles of 2023
Here are 10 of our most-read articles on Linux from 2023, which cover a mix of topics including containers, new milestones for RHEL, and various ways to simplify Linux systems management with the latest compilers and tools.
New improvements in Red Hat Enterprise Linux
- How the new RHEL 9.2 improves the developer experience by Nikhil Mungale and Alex Krikos: This article highlights new features in Red Hat Enterprise Linux 9.2, which provides a flexible and stable foundation to support hybrid cloud innovations. You can download RHEL at no cost as part of the Red Hat Developer program subscription.
- Introducing the new Red Hat Enterprise Linux download experience by Nikhil Mungale and Alex Krikos: Learn about 3 new options that improve the traditional experience of downloading a RHEL ISO image.
GCC 13 and C++ debugging
- New C features in GCC 13 by Marek Polacek: The GNU Compiler Collection 13 release implemented a number of features in its C front-end. This article summarizes the most interesting ones.
- A leaner <iostream> in libstdc++ for GCC 13 by Patrick Palka: Learn about a change in GCC 13's libstdc++ that reduces executable size and improves startup times for C++ programs that use the header.
- Improvements to static analysis in the GCC 13 compiler by David Malcolm: This article covers enhancements to -fanalyzer, a static analysis pass that can identify issues at compile-time.
- How to debug C++ lambda expressions with GDB by Kevin Buettner: Learn how to use the GNU Project debugger to debug C++ lambda expressions and explore some of the challenges associated with debugging function objects.
Containers, C# 11, and more
- Why you should use io_uring for network I/O by Donald Hunter: This article dives into io_uring, an async I/O API for Linux that can potentially benefit networking. You'll also learn how to integrate it into your applications and I/O libraries.
- 5 new advanced features improving C# 11 by Tom Deseyn: Learn about 5 new features that improve C# applications, including UTF-8 string literals, file-scoped types, generic attributes, and ref fields.
- How to deploy .NET apps as systemd services using containers by Tom Deseyn: Find out how containers and recent .NET features make systemd easy to run a service under Linux in this demonstration.
E-books and cheat sheets
If you're considering a migration to Red Hat Enterprise Linux, check out our Convert CentOS Linux to RHEL cheat sheet. Nagesh Rathod walks you through the process of migrating a CentOS distribution to a Red Hat Enterprise Linux instance in just 7 steps using the Convert2RHEL utility.
If you're in the mood for a longer read, don't miss Daniel Walsh's guide to Podman, a daemonless tool for deploying, running, building and sharing Linux containers. Released in February 2023, Podman in Action introduces Podman’s features and capabilities, including how to work with containers, build container images, and convert containerized applications into either single-node services to run on edge devices or Kubernetes-based microservices.
Even more Linux resources
Looking for more? To view our full archive of Linux related articles, browse our Linux tag.
Last updated: November 5, 2025