IBM connects States with COBOL skills

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Featured migration resources

Enterprise COBOL for z/OS Migration Portal

Find information about Enterprise COBOL for z/OS compiler migration all in one place.

Read the documentation

COBOL Migration Assistant

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

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

Video: 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)

Videos

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.

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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

COBOL Turns 60

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

Read the article (link resides outside IBM)

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

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

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

Expert resources to help you succeed

IBM Knowledge Center

Get information about how to maintain and use the product.

Support

Find solutions by using Support Search or open a Support Case.

Community

Get technical tips and insights from others who use this product.