THE FOUR HUNDRED - Power Systems & IBM i Insights

1. Liam Allan Shares What’s Coming Next With Code For IBM i

   The rise of Code for IBM i arguably is the best IBM i technology story of the past few years. The VS Code development environment came out of nowhere to challenge Rational Developer for i as the pre-eminent developer tool on the platform. And according to Liam Allan, who started this whole thing, Code for i is only going to get better in the months and years to come.

   There is clear and unmistakable momentum behind VS Code and Code for IBM i, the VS Code plug-in that Liam Allan created back in 2021 while working at Seiden Group …

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2. From Stable To Scalable: Visual LANSA 16 Powers IBM i Growth – Launching July 8

   IBM i remains one of the most trusted enterprise platforms in the world, running mission-critical operations across industries like manufacturing, logistics, and finance. Its unmatched reliability and performance have made it a mainstay for organizations running high-volume, always-on business systems.

   But as innovation speeds up, IBM i teams are under pressure to do more: modernize applications, integrate with newer systems, and deliver modern user experiences – all without compromising business operations. The problem? Most legacy environments weren’t built for agility, and rewrites are often expensive and risky.

   That’s where Visual LANSA 16 comes in. Originally built for IBM i and …

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3. VS Code Will Be The Heart Of The Modern IBM i Platform

   For application programmers, the workspace is not a place to sit with a screen, a keyboard, a chair, but rather is an integrated development environment within which code can be created, shared, compiled, and managed either inside the tool itself or through plug-in extensions that link it to other tools. IDEs have been around for decades and are not anything new. What is new is how suddenly popular one particular IDE – VS Code – has become.

   For the past several years, nearly three quarters of the programmers in the world polled for the Stack Overflow Developer Survey say that …

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4. The AS/400: A 37-Year-Old Dog That Loves To Learn New Tricks

   In the early years of the AS/400 platform, when we were new to the IT business and there were so many different datacenter computing platforms and even more operating systems, we didn’t think about the longevity of the AS/400 and its System/38 and System/36 predecessors. It was a new platform with a heritage, a system with both a past and a future out as far as we could see with our own youth and limited experience.

   But over the years, in the early 2000s in particular, we started to keep track of the years the AS/400 was around and celebrated …

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5. IBM i PTF Guide, Volume 27, Number 25

   Happy Monday, everyone. The IBM i stack is starting out your week with a security issue and two security vulnerabilities.

   First, we have PH65394, which is a notification that IBM WebSphere Application Server Liberty is vulnerable to a denial of service due to Apache CXF (CVE-2025-23184 CVSS 7.5). You can find out more about it at this link.

   Second, we have Security Bulletin: IBM i is affected by a user gaining elevated privileges due to an unqualified library call vulnerability in IBM Advanced Job Scheduler for i [CVE-2025-33122]. More information is available here. The PTF number to remediate …

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