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EDITED BY HOWARD OAKLEY
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RSRs return from the dead
Apple announced Rapid Security Responses in June 2022, as a new means of applying urgent security patches in between macOS updates. Although limited to fixing Safari and its supporting software, the first released in May 2023 worked well. But the second in July inadvertently blocked many from Facebook and other websites by changing Safari’s User Agent. Thankfully, that could be removed, and was fixed in a third RSR a little later.