Enterprise COBOL for z/OS Migration Portal

If you are migrating from Enterprise COBOL 4 or earlier versions to COBOL 6, you can visit the COBOL Migration Portal, which is a centralized place of all the Enterprise COBOL for z/OS migration-related information.

The one-stop portal provides detailed information, including case studies, COBOL experts interview videos, the cloud-based COBOL Migration Assistant, COBOL Migration and Performance Tuning Webinars, FAQs, other IBM products to support your migration, and many other resources, which help ease your migration efforts from COBOL 4 or earlier to COBOL 6 compiler.

Go to the portal

Describes COBOL migration assistant

Featured resources

COBOL Migration Assistant

Use this interactive, cloud-based tool to navigate the compiler migration process from COBOL 4 or earlier to COBOL 6.

Go to COBOL Migration Assistant

Webinar: COBOL migration and performance

Register to get service issue help with the code generator and optimizer.

Watch the webinar

White paper: Migrating to the COBOL 5 and 6 compiler is different!

Learn how to get up and run with Enterprise COBOL 5.1 or later.

Read the documentation

Customer stories

DATEV modernizes their COBOL environment

See how DATEV helps customers stay on the right side of the taxman.

Read the case study

DATEV migrations from COBOL 4 to 5

Watch Armin Kramer from DATEV explain his experience when migrating from COBOL 4 to 5 and debunks misconceptions about COBOL and DevOps.

Watch the video (08:16)

A large North American bank sends customer satisfaction and revenues soaring

See how a large North American bank invested in flexible, cost-effective DevOps tools to make banking safe, simple and convenient for customers.

Read the case study

Videos

How to Identify Top CPU Consuming COBOL Modules

Learn how to identify top CPU-consuming COBOL modules to significantly reduce CPU consumption, processing time, and operating costs.

Watch the video (05:28)

What's new in IBM Enterprise COBOL for z/OS 6.3

Discover new features and enhancements in Enterprise COBOL for z/OS, 6.3.

Watch the video (04:04)

JSON support in IBM Enterprise COBOL for z/OS

Get an overview of JSON support with the Enterprise COBOL for z/OS 6.1 or later compiler.

Watch the video (04:45)

Debug Non-Optimized and Optimized COBOL Programs with IBM Debug for z Systems

Learn how to debug COBOL-optimized modules using IBM Debug for z/OS.

Watch the video (21:51)

Video gallery

Watch all other video resources for Enterprise COBOL for z/OS.

Go to video gallery

White papers

IPCS (Interactive Problem Control System) dump format enhancements in COBOL 5+

Know the improvements of IPCS dump formatting routine to easily locate a program's Working Storage in COBOL 5.1 or later.

Read the white paper

COBOL Applications: Techniques to Make them Efficient

Understand why it is important to stay current with the COBOL compiler versions and gain performance advantages.

Read the white paper

Other resources

Enterprise COBOL for z/OS documentation library

See a collection of announcement letter, data sheet, product documentation, and white paper for Enterprise COBOL for z/OS.

Read the documentation

Enterprise COBOL for z/OS resources

Discover how these resources help you tune and migrate your COBOL applications.

Take the tutorial

COBOL Turns 60

See why COBOL and IBM Z hardware are powerful and how to speed up your digital transformation with the latest COBOL compiler.

Read the article (link resides outside of ibm.com)

Should we still use COBOL?

Approach the topic of "Why COBOL" from several different angles.

Read the blog

Lifecycle for Enterprise COBOL for z/OS products

See lifecycle details (lifecycle dates, announcement letters, and other information) for Enterprise COBOL for z/OS products.

Check the lifecycle

Fix list for Enterprise COBOL for z/OS

See a complete list of releases, refreshes, fix packs and interim fixes sorted by version for IBM Enterprise COBOL for z/OS.

Read the documentation

Rational COBOL RFE community

Visit the Request for Enhancement (RFE) Community to collaborate with IBM product development teams and other product users.

Go to the community

Hardware and Software support for IBM Z, IBM Power and Storage

Focus on keeping IBM Z infrastructure operational

Proactive Support for IBM Z can help you get personalized support with priority response handling through a dedicated IBM Z Technical Account Manager (zTAM).

Get Proactive Support for IBM Z (PDF, 724 KB)

Upgrade warranty and maintenance for IBM Z

Maintain the highest level of availability with best in-class IT support to keep your mission-critical systems running smoothly.

Buy or upgrade now

IDC MarketScape names IBM as a Leader in Support Services

Based on the IDC study, 85% of enterprises mentioned support services as a key differentiator when choosing a vendor to purchase datacenter systems.

Download the IDC report

Expert resources to help you succeed

Support

Find solutions by using support search or open a support case.

Documentation

Get information about how to maintain and use the product.

Community

A rich community of business and technical expert blogs and forums.