Insurance managed package components, such as Apex classes, may remain on API versions lower than the latest Salesforce API version despite the managed package being on its latest release. This behavior does not impact the ability to enable ICU Locale Formats.
The ICU Locale auto-enforcement from Salesforce has been paused for now. But, if it is required, It can be enabled manually.
https://help.salesforce.com/s/articleView?id=xcloud.icu_migration_enable.htm&type=5
005387219

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