• CICS User Group
  • Db2 User Group
  • IMS User Group
  • Arcati Navigator
Planet Mainframe on LinkedIn
Planet Mainframe on LinkedIn
Planet Mainframe
  • Latest
  • Cheryl Watson’s Tuning Letter
  • Influential Mainframers
  • Podcasts
  • Jobs
  • Events
The Spectrum of Trust: How Mainframers Are Embracing Agentic AI

The Spectrum of Trust: How Mainframers Are Embracing Agentic AI

by Eric Odell | Nov 10, 2025

A few years ago, the idea of letting artificial intelligence (AI) tweak a production mainframe system on its own would’ve made even the most daring system programmer break out in a cold sweat. We would have heard, “Let the machine make the change? Not on my watch.” ...

read more
Why It’s Finally Time to Retire Your TN3270 Emulator

Why It’s Finally Time to Retire Your TN3270 Emulator

by Sebastian Dewar | Nov 3, 2025

For decades, TN3270 terminal emulators have been a staple for accessing mission-critical mainframe applications. However, as cyber threats evolve and legacy systems strain under new compliance demands, it is becoming increasingly clear that traditional...

read more
Modernizing Mainframe Security: RACF and MFA Misconceptions

Modernizing Mainframe Security: RACF and MFA Misconceptions

by Julie Bergh | Oct 28, 2025

Passwords Aren’t Enough to Modernize Mainframe Security Security is the backbone of any organization’s control environment. In today’s hyper-connected economy, protecting against IT threats is not just a technical requirement—it’s a business imperative. A single...

read more
Mainframe Security: The Quiet Frontline of Enterprise Defense

Mainframe Security: The Quiet Frontline of Enterprise Defense

by Amanda Hendley | Oct 23, 2025

For decades, the mainframe has been viewed as one of the most secure computing platforms on Earth. With tightly controlled access, centralized data management, and unmatched reliability, it earned its reputation as the “fortress” of enterprise IT. But, as evidenced in...

read more
Open source on z/OS – Don’t let breaking changes break you

Open source on z/OS – Don’t let breaking changes break you

by Ed Jaffe | Aug 20, 2025

Running open source on z/OS allows it to better integrate with off-platform solutions. It also provides user interfaces familiar to engineering and computer science students, who, we hope, will become the next generation of z/OS programmers and sysadmins. Of course,...

read more
July 2025 CICS Highlights: AI, APIs, and the Rise of Modern Mainframe

July 2025 CICS Highlights: AI, APIs, and the Rise of Modern Mainframe

by Penney Berryman | Aug 1, 2025

Planet Mainframe brought together thought leaders and experts to celebrate CICS's 55th birthday. From AI-infused monitoring to API turbocharging, CICS proudly proved it was anything but obsolete. Here’s what stood out and why CICS users should be excited about what’s...

read more
How Izzi Software is Flipping Technology Takeovers

How Izzi Software is Flipping Technology Takeovers

by Jennifer Nelson | Jul 24, 2025

In the world of enterprise software, acquisitions often follow a familiar pattern: buy, cut, flip. It’s a process driven by short-term gains that often loses the heart of a company – its people, culture, and long-term value. Izzi Software is flipping the script and...

read more
How AI and Mainframes Work Together: Breaking the Legacy Myth

How AI and Mainframes Work Together: Breaking the Legacy Myth

by Uwe Graf | Jul 16, 2025

Artificial Intelligence Day on July 16 invites a fresh look at an evolving reality: AI and mainframes are no longer at odds. Instead, they’re allies in modern enterprise innovation. AI and Mainframes: Misconception or Modern Reality? Artificial Intelligence (AI) and...

read more
Modernizing CICS APIs with z/OS Connect: Fast, Simple, and Code-Light

Modernizing CICS APIs with z/OS Connect: Fast, Simple, and Code-Light

by Penney Berryman | Jul 11, 2025

Mainframe teams need faster, easier ways to modernize COBOL applications. With IBM z/OS Connect 3.0.88, exposing CICS services as REST APIs is now simpler, faster, and less complex than traditional CICS web services.Whether you're building mobile apps, partner...

read more
CICS at 55: The Evolution of Mainframe Transaction Processing

CICS at 55: The Evolution of Mainframe Transaction Processing

by Penney Berryman | Jul 8, 2025

Globally, 1969 was a noteworthy year - socially, politically, and technologically. Significant moments included: First humans landed and walked on the Moon, catapulting space exploration forward  Beatles released the Abbey Road album, a landmark and final album  First...

read more
« Older Entries
Next Entries »
The cover for Cheryl Watson's Tuning Letter Issue for 2025 Volume 2

Discover the latest issue of Cheryl Watson's Tuning Letter

Get Access Today!

Latest
About Planet Mainframe
Become a Contributor
Tuning Letter
Events

Planet Mainframe 315 Deaderick Street, Suite 1700 Nashville TN 37238
IMS, Db2, CICS, and z/OS are registered trademarks of IBM Corporation. All other trademarks, registered trademarks, product names, and company names and/or logos are the property of their respective holders.

© 2026 Planet Mainframe