Finding D'Artagnan's skeleton by chance is pure software archaeology. We uncover critical bugs while refactoring legacy code. The expert dev rule applies: don't celebrate the fix yet. Add tests and monitor.
🔗 p.dw.com/p/5BBNp
#LegacyCode #Dev

🗣️ Check out Mark Lehan's IPC sessions!

📅 Tue, June 9, 26 | #IntPHPCon |📍BER 

🤖 Refactoring Robots: #GenAI for Your #LegacyCode |🕥10:30 – 11:15
🔗 https://tinyurl.com/bdzdbd7s

⚙️ #Rust Rewrites: A #Serverless Journey | 🕑 13:45 – 14:30
🔗 https://tinyurl.com/tnkwb5ey

#PHP#WebDev

The Last Maintainers COBOL processes $3 trillion in daily transactions. The people who understand it are disappearing. My company says I can help. The maintainers say: reading isn't understanding.

COBOL processes $3 trillion daily. The people who understand it are retiring at 10% per year. My company says I can help. The maintainers say: reading isn't understanding.

New essay on the knowledge that lives in people, not in code.

#programming #COBOL #craft #AI #legacycode

La amenaza del ‘Komsomolets’: un submarino soviético nuclear libera radiación desde el fondo del mar desde hace cuatro décadas El ‘K-278′ emite material radiactivo desde que se hundió en 1989, aunque los torpedos con ojivas atómicas resisten la corrosión

Soviet nuclear sub leaked radiation for 37 years. Dev lesson: legacy systems are our sunken subs. Patches become permanent. Monitor, contain, and never lose the knowledge. "If it works, keep it" isn't free.

#LegacyCode #TechDebt #Monitoring #KnowledgeTransfer #DevLife

The oldest light in the universe taught me about legacy code. Energy never dies, it transforms. Like logs, like tech debt. Science has peer review , we should too. Resilience isn't never failing, it's adapting.

🔗 buff.ly/ZQoQVMP

#Astronomy #LegacyCode #Resilience #CodeReview #DevLife

Git Blame To The Rescue

Git Blame To The Rescue

#git #Gitblame #Codereview #Legacycode #Workplacedrama

programmerhumor.io/git-memes/git-blame-to-t...

This isn't just tech history—it's critical infrastructure. The programmers are retiring, and few are learning COBOL. What happens when the last generation of experts walks away? How do we secure our financial future?

#LegacyCode #MainframeComputing #GraceHopper

to anyone who is interested in legacy modernization - I created a new BlueSky feed on that topic - combining some relevant keywords: bsky.app/profile/did:...
#legacymodernization #legacycode

What Do You Mean What Am I Doing

What Do You Mean What Am I Doing

#Juniordev #Seniordev #Codequality #Bestpractices #Legacycode

programmerhumor.io/programming-memes/what-d...

#Legacycode, and the struggles of #Developerlife! You're doing amazing things! Keep up the fantastic work! 🚀🌟

When You Touch Legacy Code And Pray Nothing Breaks

When You Touch Legacy Code And Pray Nothing Breaks

#Legacycode #debugging #Spaghetticode #Refactoring #Technicaldebt

programmerhumor.io/programming-memes/when-y...

BO Tool Identifies Vulnerabilities in Decades-Old Apple II Program

🤖 IA: It's clickbait ⚠️
👥 Usuarios: It's clickbait ⚠️

#ai #legacycode #potatosecurity

View full BO summary:

AI Tool Identifies Vulnerabilities in Decades-Old Apple II Program Microsoft Azure CTO Mark Russinovich demonstrated that AI can now analyze decades-old machine code to uncover vulnerabilities, using his own Apple II program from 1986 as an example. The program, named Enhancer, extended Applesoft BASIC by allowing GOTO, GOSUB, and RESTORE commands to use variables or expressions instead of line numbers. Using Claude Opus 4.6, the AI decompiled the 6502 machine language and detected several issues, including a subtle bug where the program would point to the wrong line if a destination was missing instead of generating an error. Although these vulnerabilities have little practical impact today, the demonstration highlights AI's growing ability to audit and reverse-engineer embedded and legacy code, which is significant because billions of older microcontrollers still operate worldwide with potentially fragile or unaudited firmware. Experts suggest this capability could benefit both cybersecurity defenders and attackers in identifying weaknesses in old or poorly maintained code. While the example involves Apple II software, the broader implications emphasize the importance of AI in modern security research and automated vulnerability detection.

AI Tool Identifies Vulnerabilities in Decades-Old Apple II Program

🤖 IA: It's clickbait ⚠️
👥 Usuarios: It's clickbait ⚠️

#ai #legacycode #cybersecurity

View full AI summary:

Michael Feathers wrote in the preface of Working Effectively with Legacy Code:

“Legacy code is simply code without tests.”

But I keep wondering:

If we add tests to legacy code…
does it stop being legacy?

#legacycode #softwareengineering #softwarearchitecture

The Oddly Specific Documentationless Magic Number

The Oddly Specific Documentationless Magic Number

#Magicnumbers #Legacycode #Codedocumentation #Technicaldebt #Codecomments

programmerhumor.io/programming-memes/the-od...

Vibe Coders Won't Understand

Vibe Coders Won't Understand

#Legacycode #Codecomments #Technicaldebt #debugging #Codehorror

programmerhumor.io/debugging-memes/vibe-cod...

Maledetto codice legacy È tutto un equilibrio tra codice e follia

Maledetto codice legacy

bluebabbler.it/post/Maledet...

#perdire #software #legacyCode #algoritmi

AI Maintaining Legacy Codebase

AI Maintaining Legacy Codebase

#Ai #Legacycode #Cobol #Anthropic #Claude

programmerhumor.io/ai-memes/ai-maintaining-...

Legacy-Systeme sanieren mit Domain-Driven Transformation In diesem Artikel stellen die Autor:innen einen Ausschnitt aus ihrer Methode „Domain-Driven Transformation“ vor, der hilft einen Weg für Legacy zu wählen.

🧱 Big Ball of Mud oder fast modular?

Carola Lilienthal & @hschwentner.bsky.social zeigen, wie der Modularity-Maturity-Index (MMI) den richtigen Weg für Deine Legacy-Modernisierung vorgibt.🛣️

#DDD #LegacyCode #SoftwareArchitecture #jaxcon

👉 Jetzt weiterlesen:

🧱 Dein System fühlt sich nach „Big Ball of Mud“ an? @hschwentner.bsky.social zeigt, wie Du Legacy #SoftwareArchitecture bewertest & gezielt modernisierst.

💡 Collaborative Modeling
🔧 Bewährte Refactorings

JAX |📍 Mainz | 📅 5. Mai 2026 |⏰12:00 -13:00

🔗https://tinyurl.com/3vy6r3tw
#jaxcon #LegacyCode

Huh, so AI might actually be the key to keeping COBOL systems humming for years. Guess those armies of consultants might have to find new gigs. 😅 #AI #LegacyCode

They said it couldn't be tested... But they were wrong. Sort of.

Read more here:
www.devleader.ca/2023/12/20/dealing-with-...

#legacycode #testing #programming #coding

By The End Of My LinkedIn

By The End Of My LinkedIn

#linkedin #Ai #Buzzwords #Legacycode #debugging

programmerhumor.io/ai-memes/by-the-end-of-m...

Following Requirements Without Understanding Shit Is Dangerous

Following Requirements Without Understanding Shit Is Dangerous

#Juniordeveloper #Seniordeveloper #requirements #Legacycode #Technicaldebt

programmerhumor.io/programming-memes/follow...

It Works That's Enough

It Works That's Enough

#Legacycode #Technicaldebt #Refactoring #Codequality #debugging

programmerhumor.io/programming-memes/it-wor...

🤖 Refactoring #LegacyCode doesn’t have to hurt.

At #IntPHPcon, Mike Lehan explores how #GenAI can support you in
“Refactoring Robots: Gen-AI for Your Legacy Code”

🧠 Gen-AI for refactoring
🛠 Real-world legacy challenges
🔮 Modernization strategies

🔗 https://f.mtr.cool/wvebymzuiy

#PHP

Still using a signed 32-bit integer to store time… and living on the edge of the 2038 problem.

#TechLife #LegacyCode #32BitTime #ProgrammerLife #DeveloperMood #CodingChallenges #TechTips #SysAdminLife #NextGenTech #TimeManagement

What Was The Craziest "If It Works, Don't Touch It" Projects Of Your Life

What Was The Craziest "If It Works, Don't Touch It" Projects Of Your Life

#Ifitworksdonttouchit #Legacycode #hardware #Adapter-hell #production

programmerhumor.io/hardware-memes/what-was-...

Legacy Code Deserves More Respect Than We Give It

A reflection on old code, missing context, and why understanding past decisions matters more than quick judgment in software development. #legacycode

A key reason for C++ feature bans in Chromium: legacy code and existing in-house solutions. Modernizing vast codebases is a huge challenge, often making standard library features redundant or incompatible. Not all bans apply to greenfield projects. #LegacyCode 2/6