We're always striving to bring you relevant, insightful, and actionable articles on cloud-native application development, open source tools, and innovations in enterprise tech. As we sail past the halfway mark of 2025, it's a great time to look back at the content that has resonated most with our readers so far this year. If you missed any of these posts, now's your chance to catch up.
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Our top 10 articles of 2025 (so far)
GitOps, virtualization, and cloud-native platforms like Red Hat OpenShift remain areas of significant interest to developers and other tech practitioners, reflecting the industry's focus on scalable and efficient infrastructure.
Readers also sought out posts related to compiler advancements, performance, and developer experience in core programming languages like C++, particularly around the April release of the GNU Compiler Collection (GCC) 15.
Finally, articles on large language models (LLMs) and related optimization techniques underscore the rapid adoption and deep curiosity surrounding AI and its practical applications.
10. An overview of virtual routing and forwarding (VRF) in Linux
Deepen your understanding of network segmentation with this detailed overview of Virtual Routing and Forwarding (VRF) and its practical implementation in Linux. VRF domains are a lightweight solution for isolating L3 traffic and are useful in a number of cases in both routers and endpoints.
Read the article here: An overview of virtual routing and forwarding (VRF) in Linux
9. OpenShift GitOps recommended practices
By Gerald Nunn
Unlock the full potential of GitOps on OpenShift. This essential guide covers recommended practices to ensure efficient and reliable application deployments.
Read the article here: OpenShift GitOps recommended practices
8. Why I switched from VMware to OpenShift Virtualization
By Ryan Capra
This article dives into the benefits of migrating from VMware to OpenShift Virtualization for a more integrated cloud-native experience. If you're ready to make the move, check out our OpenShift Virtualization for VMware administrators cheat sheet.
Read the article here: Why I switched from VMware to OpenShift Virtualization
7. How we optimized vLLM for DeepSeek-R1
By Michael Goin, Robert Shaw, Nick Hill, Tyler Smith, and Lucas Wilkinson
Explore the techniques and strategies used to optimize vLLM, leading to significant performance improvements when working with the DeepSeek-R1 model.
Read the article here: How we optimized vLLM for DeepSeek-R1
6. Llama 4 herd is here with Day 0 inference support in vLLM
By the vLLM team at Red Hat
Learn about the immediate support for Llama 4 inference using vLLM, enabling rapid experimentation and development with the latest large language models.
Read the article here: Llama 4 herd is here with Day 0 inference support in vLLM
5. A quick look at MCP with large language models and Node.js
Model Context Protocol (MCP) is an open source standard that enables AI systems, particularly large language models, to discover, access, and use real-time context and external tools, serving as a universal API for AI integration. In this helpful overview, you’ll see how MCP can integrate with LLMs and Node.js for building powerful, practical, and scalable AI applications.
Read the article here: A quick look at MCP with large language models and Node.js
4. How to automate multi-cluster deployments using Argo CD
By Radu Domnu and Ilias Raftoulis
The first of a two-part series, this article presents an approach to automate application and infrastructure deployments across multiple OpenShift multi-tenant clusters, leveraging OpenShift GitOps (Argo CD) as the core component. Once you've got your instance up and running, Part 2 explains how to manage and configure your Argo CD instances.
Read the article here: How to automate multi-cluster deployments using Argo CD
3. Getting started with RHEL on WSL
By Eliane Pereira, Sanne Raymaekers, and Terry Bowling
You can now use Red Hat Enterprise Linux (RHEL) directly on your Windows machine with Windows Subsystem for Linux (WSL). This integration empowers developers, system administrators, and other users to run RHEL locally within their Windows environment. This comprehensive guide walks through the process of setting up and integrating RHEL into your Windows development workflow using WSL.
Read the article here: Getting started with RHEL on WSL
2. New C++ features in GCC 15
Explore new features implemented in the C++ front end in GCC 15, which offers developers powerful tools and capabilities for modern C++ programming.
Read the article here: New C++ features in GCC 15
1. 6 usability improvements in GCC 15
Our most popular article so far this year rounds up enhancements in GCC 15 that make the compiler even more user-friendly and efficient. Learn about improvements in diagnostic output that make it easier to use and understand errors and warnings, streamlining your overall development workflow.
Read the article here: 6 usability improvements in GCC 15
Get the latest downloads
We’ve also added new e-books and cheat sheets for Red Hat Developer program members. These titles help you advance your automation skills, leverage generative AI in the Java enterprise, navigate OpenShift as a .NET developer, and more:
- Red Hat Certified Engineer (RHCE) Ansible Automation Study Guide by Alex Soto Bueno and Andrew Block (O’Reilly)
- Quarkus in Action by Martin Štefanko and Jan Martiška (Manning Publications)
- OpenShift for .NET Developers by Don Schenck
- Applied AI for Enterprise Java Development (preview chapters) by Alex Soto Bueno, Markus Eisele, and Natale Vinto (O’Reilly)
- Open source AI for developers
Our latest cheat sheets are quick reference guides to the latest version of Red Hat Enterprise Linux, performing an OpenShift disconnected installation in a secured environment, and transitioning from VSphere to OpenShift Virtualization:
- Red Hat Enterprise Linux 10 cheat sheet by Seth Kenlon
- OpenShift disconnected installation cheat sheet by Allen Fouladi
- OpenShift Virtualization for VMware administrators cheat sheet by Ryan Capra and Carolyn May
Check back for new tutorials, technical deep dives, and practical advice from the world of open source and cloud development.
