Apple has in the meantime a release candidate version (RC) from MacOS 15.7 this week. This is unusual because MacOS 15.6 was only released on July 29 and there was no beta phase of MacOS 15.7. Usually it takes at least several weeks (if not months) before the RC and finally the final version are published.
Apparently it is about security
Keep interesting: on Apple’s Developer website If MacOS 15.7 is currently no more listed in the beta area, instead only the Betas from MacOS 26, iOS 26 and Co. can be downloaded there, as well as the final versions of MacOS 15.6, iOS 18.6 and Co. The Apple-Blog 9to5mac Speculates that MacOS 15.7 is a backporting update that in MacOS 26 (currently: Developer-Beta 5) brings already implemented stuffed security holes to the current MacOS version.
In addition to MacOS 15.7, MacOS 14.8 also appeared as a release candidate version. The package inserts from MacOS 15.7 and MacOS 14.8 speak for security measures: Apple only writes that the respective update “important security fixes” contains and “recommended for all users”-the usual Sätzlein for pure security updates.
“Backporting” instead of Rapid Security Response
How quickly MacOS 15.7 and MacOS 14.8 are released is unclear. With important security problems, Apple would also have the option of rolling out so-called rapid security response updates, but so far the group has only been extremely rare. RSRS is possible to react faster than with regular updates, and they should also be installed faster, which is not always the case in practice.
It is currently expected that there will only be an update – MacOS 15.7 – before MacOS 26 appears. However, this should contain more than just security fixes, since it would be the last “real” update for MacOS Sequoia. With the appearance of MacOS 26 in September, there will only be safety-relevant error fixes for the MacOS 15 series if Apple adheres to its usual approach.
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