Read the article "Apple is Beta-testing an Update that Kills Evasion Jailbreak." In the textbook, beta-testing is described as used for formative evaluation and for fine-tuning. How does the story of Apple's beta-test meet the criteria?
https://www.forbes.com/forbes/welcome/?toURL=https://www.forbes.com/sites/andygreenberg/2013/02/25/apple-is-beta-testing-a-fix-for-evasi0n-jailbreak/&refURL=&referrer=#1dbade24d0ad