Good Morning @all,

Looking at the table on the AIX support lifecycle information page and the below, I would expect Dec 2025 for TL4 and July for SP1

https://www.ibm.com/support/pages/system/files/inline-images/AIXcurrent.jpg" title="AIX Current" data-title="AIX Current" width="400" data-modalsrc="https://higherlogicdownload.s3.amazonaws.com/IMWUC/UploadedImages/N52fOLliQWmfmr7wnZzg_AIXcurrent.jpeg" data-imgbase="https://higherlogicdownload.s3.amazonaws.com/IMWUC/UploadedImages/N52fOLliQWmfmr7wnZzg_AIXcurrent.jpeg" data-imgthumbnail="https://higherlogicdownload.s3.amazonaws.com/IMWUC/UploadedImages/N52fOLliQWmfmr7wnZzg_AIXcurrent-T.jpeg" data-imgmedium="https://higherlogicdownload.s3.amazonaws.com/IMWUC/UploadedImages/N52fOLliQWmfmr7wnZzg_AIXcurrent-M.jpeg" data-imglarge="https://higherlogicdownload.s3.amazonaws.com/IMWUC/UploadedImages/N52fOLliQWmfmr7wnZzg_AIXcurrent-L.jpeg">

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Alexander Pettitt
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Hello Alexander,

Thanks for the information. I will check that website for the Release Notes too.

Kind regards.

Original Message:
Sent: Fri October 10, 2025 08:00 AM
From: Alexander Pettitt
Subject: Realease Notes AIX 7.3 TL4

Looking at the table on the AIX support lifecycle information page and the below, I would expect Dec 2025 for TL4 and July for SP1

https://www.ibm.com/support/pages/system/files/inline-images/AIXcurrent.jpg" title="AIX Current" data-title="AIX Current" width="400" data-modalsrc="https://higherlogicdownload.s3.amazonaws.com/IMWUC/UploadedImages/N52fOLliQWmfmr7wnZzg_AIXcurrent.jpeg" data-imgbase="https://higherlogicdownload.s3.amazonaws.com/IMWUC/UploadedImages/N52fOLliQWmfmr7wnZzg_AIXcurrent.jpeg" data-imgthumbnail="https://higherlogicdownload.s3.amazonaws.com/IMWUC/UploadedImages/N52fOLliQWmfmr7wnZzg_AIXcurrent-T.jpeg" data-imgmedium="https://higherlogicdownload.s3.amazonaws.com/IMWUC/UploadedImages/N52fOLliQWmfmr7wnZzg_AIXcurrent-M.jpeg" data-imglarge="https://higherlogicdownload.s3.amazonaws.com/IMWUC/UploadedImages/N52fOLliQWmfmr7wnZzg_AIXcurrent-L.jpeg">

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Alexander Pettitt
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HI

always check the IBM FLRT ( Power System Recommendations )

Hello Anas,

thanks for the tip. That helps. The Release Notes are not available any earlier?
Too bad. But the release date will help planning our next upgrade.

kind regards.

Hello Joerg,

welcome anytime 

https://esupport.ibm.com/customercare/flrt/

The formal announce letter for the 2025 AIX 7.3 TL4 release should be published in the next 3 to 4 weeks. It will communicate the TL4 availability date along with an overview of new features and enhancements. When the announce letter is published, I will make a post to this community.

Thanks.

Hello Joerg 

Check the AIX and Availability Enhancements below link

https://www.ibm.com/docs/en/announcements/aix-availability-enhancements

Thanks

It would be available when GA'd in November. 

hello Jeorge,

I have checked IBM's published lifecycle documentation, IBM announcements, and community sources, but was unable to locate an official release schedule or release notes availability for AIX 7.3 TL4 or a confirmed date for TL4 SP1.

The announce letter is how IBM formally communicates the general availability date of product updates. Until then the release date is not public. The documentation updates for AIX 7.3 TL4, including release notes, generally become available about a week before the actual TL4 availability.

TechU...  I mean TechXchange just isn't the same without the Carl and Petra show telling us all about the new stuff!

See also  AIX support lifecycle information

especially the "Next SP" column.

FYI, the documentation updates for AIX 7.3 TL4 are now available

What's new: https://www.ibm.com/docs/en/aix/7.3?topic=whats-new

Commands what's new: https://www.ibm.com/docs/en/aix/7.3?topic=commands-whats-new

AIX 7.3.4 Release Notes: https://www.ibm.com/docs/en/aix/7.3.0?topic=notes-aix-734-release

AIX 7.3.4 Expansion Pack Release Notes: https://www.ibm.com/docs/en/aix/7.3.0?topic=notes-aix-734-expansion-pack-release