Would Traditional WAS supports Java 11 Runtime or beyond in the future for ease of application upgrade from Java 8 without requiring major mission critical application(s) modernization to light weight liberty runtime.

However,according to the link below, there is no planned end of support date for TWAS on Java 8

WebSphere Application Server - Support FYI

The high availability,resiliency and clustering capabilities of TWAS is very strong and robust for complex and mission critical application workloads on On Premise Environments.

In particular, TWAS workload management and fail over capabilities enable zero-downtime operations and also provides comprehensive transactional integrity across multiple data sources and messaging systems, enabling complex enterprise integration scenarios 

Customers should have flexibility to upgrade to Java 11 and beyond on TWAS.Migrating to Liberty Runtime is a Journey that requires modernization preferably on containerized workloads

Liberty is more light weight and supports micro services architecture for modern day application development and cloud-optimized application used for agile development and micro services deployment.

Thanks

------------------------------
Adeoye Omoboya
------------------------------

Hi Adeoye,

Yes, some tWAS apps might need modernising to run on Liberty (many don't; it depends on the app itself). But beyond that, Liberty is absolutely capable of running complex, mission critical application workloads on premise.

I recommend reading our recent article for tWAS users which addresses many of the points you raise about Liberty: Demystifying Liberty for WebSphere Administrators. The article is based on a popular talk by Alasdair Nottingham, Chief Architect for WebSphere and Liberty. It includes embedded video clips from the talk to provide more detail and explanation about each of the points covered.

We also have a new information portal where we're pulling together all the relevant information that someone migrating from tWAS to Liberty might need. We recognise that there are still gaps in the information so we're working to fill them. We are also aware that there are probably questions that aren't even included, so if you have them I encourage you to raise issues with any questions that should be added (and any information you might have to help answer them).

Thanks,

Laura

------------------------------
Laura Cowen
Winchester

Original Message:
Sent: Wed December 03, 2025 12:17 PM
From: Adeoye Omoboya
Subject: Traditional WAS on Java 11

Would Traditional WAS supports Java 11 Runtime or beyond in the future for ease of application upgrade from Java 8 without requiring major mission critical application(s) modernization to light weight liberty runtime.

However,according to the link below, there is no planned end of support date for TWAS on Java 8

WebSphere Application Server - Support FYI

The high availability,resiliency and clustering capabilities of TWAS is very strong and robust for complex and mission critical application workloads on On Premise Environments.

In particular, TWAS workload management and fail over capabilities enable zero-downtime operations and also provides comprehensive transactional integrity across multiple data sources and messaging systems, enabling complex enterprise integration scenarios 

Customers should have flexibility to upgrade to Java 11 and beyond on TWAS.Migrating to Liberty Runtime is a Journey that requires modernization preferably on containerized workloads

Liberty is more light weight and supports micro services architecture for modern day application development and cloud-optimized application used for agile development and micro services deployment.

Thanks

------------------------------
Adeoye Omoboya
------------------------------

Thanks for the response

We are planning to continue on TWAS 9.0.5.23 and beyond which supports Modernized Runtime Extensions for Java(More)

With these, we can manage and maintain Liberty managed servers on TWAS with sumeru SDK runtimes for 17 and 21

https://www.ibm.com/products/enterprise-application-runtimes/modernize-runtime-extension?utm_source=ibm_developer&utm_content=in_content_link&utm_id=blogs_ibm-jsphere-suite-java-at-scale&cm_sp=ibmdev-_-developer-blogs-_-product

Is this configuration matured enough to be tested on customer environments

We have a lot of critical and legacy applications running on JDK 8 with TWAS 9.0.5.25/8.5.5.X

Regards,

------------------------------
Adeoye Omoboya

Original Message:
Sent: Thu December 04, 2025 04:36 AM
From: Laura Cowen
Subject: Traditional WAS on Java 11

Hi Adeoye,

Yes, some tWAS apps might need modernising to run on Liberty (many don't; it depends on the app itself). But beyond that, Liberty is absolutely capable of running complex, mission critical application workloads on premise.

I recommend reading our recent article for tWAS users which addresses many of the points you raise about Liberty: Demystifying Liberty for WebSphere Administrators. The article is based on a popular talk by Alasdair Nottingham, Chief Architect for WebSphere and Liberty. It includes embedded video clips from the talk to provide more detail and explanation about each of the points covered.

We also have a new information portal where we're pulling together all the relevant information that someone migrating from tWAS to Liberty might need. We recognise that there are still gaps in the information so we're working to fill them. We are also aware that there are probably questions that aren't even included, so if you have them I encourage you to raise issues with any questions that should be added (and any information you might have to help answer them).

Thanks,

Laura

------------------------------
Laura Cowen
Winchester

Original Message:
Sent: Wed December 03, 2025 12:17 PM
From: Adeoye Omoboya
Subject: Traditional WAS on Java 11

Would Traditional WAS supports Java 11 Runtime or beyond in the future for ease of application upgrade from Java 8 without requiring major mission critical application(s) modernization to light weight liberty runtime.

However,according to the link below, there is no planned end of support date for TWAS on Java 8

WebSphere Application Server - Support FYI

The high availability,resiliency and clustering capabilities of TWAS is very strong and robust for complex and mission critical application workloads on On Premise Environments.

In particular, TWAS workload management and fail over capabilities enable zero-downtime operations and also provides comprehensive transactional integrity across multiple data sources and messaging systems, enabling complex enterprise integration scenarios 

Customers should have flexibility to upgrade to Java 11 and beyond on TWAS.Migrating to Liberty Runtime is a Journey that requires modernization preferably on containerized workloads

Liberty is more light weight and supports micro services architecture for modern day application development and cloud-optimized application used for agile development and micro services deployment.

Thanks

------------------------------
Adeoye Omoboya
------------------------------