Is it too much to ask for specifics on bugs fixed in software updates? People shouldn't be having to ask "Does this fix _________ on my _______?". The release notes should cite specific issues.
For those who care about specific security issues, and are technically informed enough to understand the details, Apple always publishes a detailed list of issues fixed complete with the CVE IDs. The latest one is here:
This includes detailed reports for each security fix, such as:
AppleGraphicsPowerManagement
Available for: macOS Sierra 10.12.1
Impact: A local user may be able to cause a system denial of service
Description: A null pointer dereference was addressed through improved input validation.
CVE-2016-7609: daybreaker@Minionz working with Trend Micro's Zero Day Initiative
which about as full a listing as anyone could wish for.
And for more general issues the detailed release notes provide moderate details on the issues fix, as for instance:
Whether the detail level is sufficient is at times debatable. Does "Improves audio quality when using Siri and FaceTime with Bluetooth headphones." mean it fixes
my specific problem with
Brand X headphones? Quite possibly or perhaps it fixes a similar but different problem. One can never tell with out testing. Still, the level is detailed enough to set expectations.
Apple's products are used by a broad range of folk, from people who virtually technically illiterate to tech weenies who've been around for several decades and used the Mac for most of those years. They're policy of progressive disclosure seems entirely appropriate, at least to this old geezer.