We released version 1.4.0 of the Migrate to Containers modernization plugins
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## Announcement
On November 29, 2023 we released version 1.4.0 of the Migrate to Containers modernization plugins.
Learn how to [Upgrade Migrate to Containers plugins](https://cloud.google.com/migrate/containers/docs/upgrade#upgrade%5Fplugins).
## Change
The following changes have been made to the migration plan format for Tomcat workloads:
* A new field `baseImage` of type `object` has been added that lets you do the following:
* Specify the Docker community image or provide your own Docker image to use as the base image for the migration using the `baseImage.name` property of type `string`.
* Specify a custom Tomcat installation path using the `baseImage.catalinaHome` property of type `string`.
* The `fromImage` field of type `string` has been replaced by the `baseImage.name` property.
* Two new fields `userName` and `groupName` of type `string` have been added that let you specify a custom user and group under which you want the application to run.
## Change
Support for IBM WebSphere Application Server migrations has been enhanced. The `websphere-container` plugin now supports WebSphere Application Server traditional as a source and as a target.
## Deprecate
The `websphere-traditional` plugin is now deprecated. For existing customers, it is still supported till December 2023, after which it will no longer be available. If you're new to WebSphere workload modernization, then use the `websphere-container` plugin with the Migrate to Containers CLI instead.