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Learn about Java 26's upcoming changes to deep reflection and final field mutation in this 11-minute newscast. Discover how Java 26 will issue run-time warnings when final fields are mutated through reflection, preparing for future changes that will make such mutations illegal by default to improve Java's integrity. Explore the beneficial effects this will have on maintainability, security, and performance, while understanding the keyword `final` and its importance. Examine the migration path available to developers, including the new permanent command-line option `--enable-final-field-mutation` for selected modules and the temporary `--illegal-final-field-mutation` option to ease the transition. Understand the broader concept of "Integrity by Default" and how these changes align with Java's evolution toward better security and performance practices.
