Hi @James Hennessey,
Welcome to the Microsoft Q&A Platform! Thank you for asking your question here.
Extended Support for Oracle Linux 7 is available through June 2028, which means you will continue to receive support for security issues and select critical bug fixes during this period.
It is recommended to start planning your migration to OEL8 well before the ELS period ends.
While there is no strict deadline for upgrading to OEL8, it is recommended to do so before the end of the Extended Lifecycle Support (ELS) period for OEL7, which ends on June 30, 2028.
If you have any further queries, do let us know.
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