Hello:
Here is the AI response:
IBM has not published a separate "Integrated Web Services Server Administration and Programming Guide" specifically for IWS 3.0.
Instead, IBM has taken a different approach with IWS 3.0:
- The existing "Integrated Web Services Server Administration and Programming Guide" is still the primary guide. It remains the official administration and programming reference and is linked from IBM's Integrated Web Services page, even after the introduction of IWS 3.0.
- The IWS 3.0 differences are documented in IBM Technology Updates, not in a completely new manual. IBM published an "Introducing IWS 3.0" article that explains the major architectural changes, migration considerations, new features, prerequisites, and behavioral differences.
Major changes in IWS 3.0
The most significant change is that IWS 3.0 is now based on Jakarta EE rather than Java EE.
Some important differences include:
- Migration from Java EE packages to Jakarta EE packages.
- Requirement for Java 17 or later.
- Upgrade support from IWS 2.6, including automatic upgrading of deployed web services.
- OpenAPI enhancements, including aggregation of multiple OpenAPI specifications.
- Improved JSON processing (unknown JSON properties are now ignored rather than causing exceptions).
- New administrative scripts and enhancements to server property management.
- IBM recommends beginning migration because future IBM i releases will no longer allow creation of new IWS 2.6 servers.
Platform support
IBM's current support statement says:
| IBM i Release | IWS 2.6 | IWS 3.0 |
| IBM i 7.6 | Supported | Supported |
| IBM i 7.5 | Supported | Supported |
| IBM i 7.4 | Supported | Supported |
| IBM i 7.3 | Supported (Service Extension) | Not available |
Why there isn't a new guide
The administration model hasn't changed dramatically. Most tasks are still performed through:
- IBM Web Administration for i
- The Integrated Web Services deployment wizards
- The same deployment concepts for RPG, COBOL, C, and C++ ILE programs
- Similar server administration scripts
The largest changes are in the underlying runtime (Jakarta EE) and migration details rather than in day-to-day administration, which is why IBM appears to have supplemented the existing guide with technology update documents instead of rewriting the entire manual.
My recommendation
If you're beginning new development with IWS 3.0, I would use these three resources together:
- Integrated Web Services Server Administration and Programming Guide (the existing comprehensive guide)
- Introducing IWS 3.0 (for all version-specific changes and migration guidance)
- IBM Docs for IBM i 7.5/7.6 Integrated Web Services (for current command and API reference)
That combination provides essentially the same level of documentation that the standalone 2.6 guide did, with the 3.0-specific changes captured in IBM's technology updates rather than in a new edition of the manual.
Here is a link:
Integrated Web Services for IBM i - Web services made easy
https://www.ibm.com/support/pages/node/7248102
Regards,Laura
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Integrated Web Services for IBM i - Web services made easy
Integrated Web Services for i enables Integrated Language Environment (ILE) applications to play in the web serv...
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Laura A. UbelhorPresidentConsultech Services, Inc.www.consultechservicesinc.com
phone 248-701-7410
On Thursday, July 9, 2026 at 09:56:34 AM EDT, Martijn van Breden <m.vanbreden@xxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
Hi All
We're currently diving into IWS 3.0. We've found some documentation and proud announcements, but we lack a document like
"Integrated Web Services Server Administration and Programming Guide" that is available for version 2.6. I assume that, as this is a major release, there are more then a few relevant differences.
Is it not yet published or is Google letting me down on finding it.
Kind Regards,
Martijn van Breden
lead software architect
midrange.com
