macOS 10.9 Public

The redesigned scheduling app could place appointments in geographic context and estimate the time required to reach them.

1. [1] OS X Mavericks Available Today Free from the Mac App Store · Feature list; Calendar

The public release created a Mac planning surface for Apple Maps and a handoff path that moved a prepared route to a supported iPhone for voice guidance.

1. [1] OS X Mavericks Available Today Free from the Mac App Store · Feature list; Maps
2. [2] Apple Releases Developer Preview of OS X Mavericks With More Than 200 New Features · Maps paragraph

The release reduced restrictions around full-screen workflows across more than one display and made the desktop arrangement more independent per screen.

1. [1] OS X Mavericks Available Today Free from the Mac App Store · Feature list; multi-display support
2. [2] Apple Releases Developer Preview of OS X Mavericks With More Than 200 New Features · Multiple displays paragraph

The advisory records safer account-authentication selection, accurate signed-message presentation, improved Kerberos mail transport handling, a VNC username vulnerability repair, and tighter guest access to prior log messages.

1. [1] About the security content of OS X Mavericks v10.9 · Mail Accounts; Mail Header Display; Mail Networking; Screen Sharing Server; syslog

Apple's advisory documents library updates for code-execution, denial-of-service, and transport risks, disables most use of MD5-signed X.509 certificates, and corrects OpenLDAP and smart-card certificate checks.

1. [1] About the security content of OS X Mavericks v10.9 · curl; Libc; OpenLDAP; perl; python; ruby; Security; Security - Smart Card Services

The new Mac app connected a user's eligible book collection and reading state across supported Apple devices, extending Apple's reading service beyond iPhone and iPad.

1. [1] OS X Mavericks Available Today Free from the Mac App Store · Feature list; iBooks
2. [2] Apple Releases Developer Preview of OS X Mavericks With More Than 200 New Features · iBooks paragraph

The advisory describes an App Sandbox escape path, changes Console links to preview rather than execute directly, and filters unsafe Unicode characters that could disguise a file extension.

1. [1] About the security content of OS X Mavericks v10.9 · App Sandbox; Console; LaunchServices

Mavericks could place qualifying background apps into a lower-power state using timer and I/O throttling plus reduced process priority, while excluding foreground and certain active applications.

1. [1] OS X Mavericks Available Today Free from the Mac App Store · Core technologies; App Nap
2. [2] Power Efficiency in OS X · Pages 2–3; App Nap

Developers gained command-line CPU power metrics plus interfaces for long-running operations and timer tolerance, complementing the system's automatic power management.

1. [1] Power Efficiency in OS X · Pages 6–7; powermetrics and APIs
2. [2] Apple Releases Developer Preview of OS X Mavericks With More Than 200 New Features · Xcode 5 energy-use tooling

When memory pressure increased, Mavericks compressed inactive contents in place to preserve responsiveness and available capacity rather than treating them at full size.

1. [1] Apple Releases Developer Preview of OS X Mavericks With More Than 200 New Features · Core technologies; Compressed Memory
2. [2] OS X Mavericks Available Today Free from the Mac App Store · Core technologies; Compressed Memory

Mavericks introduced an encrypted Apple-managed credential store intended to reduce repeated entry of common account, network, and checkout information across a user's devices.

1. [1] Apple Releases Developer Preview of OS X Mavericks With More Than 200 New Features · Additional features; iCloud Keychain and AES-256 description
2. [2] OS X Mavericks Available Today Free from the Mac App Store · Feature list; iCloud Keychain

Apple documents state, validation, and authorization corrections spanning CoreGraphics, security preferences, power assertions, and two separate screen-lock paths.

1. [1] About the security content of OS X Mavericks v10.9 · CoreGraphics; Power Management; Security - Authorization; Screen Lock

The browser gained a social discovery feed that collected links from supported accounts inside Safari instead of requiring separate service views.

1. [1] OS X Mavericks Available Today Free from the Mac App Store · Feature list; Safari Shared Links
2. [2] Apple Releases Developer Preview of OS X Mavericks With More Than 200 New Features · Safari paragraph; Shared Links

The release adjusted compute and memory handling for Macs with integrated graphics, with the performance characterization coming from Apple's launch material.

1. [1] OS X Mavericks Available Today Free from the Mac App Store · Core technologies; integrated graphics

Users could classify documents by project or category independently of their folder location and browse those classifications from Finder.

1. [1] OS X Mavericks Available Today Free from the Mac App Store · Feature list; Finder Tags
2. [2] Apple Releases Developer Preview of OS X Mavericks With More Than 200 New Features · Finder Tags paragraph

Apple's advisory covers Bluetooth and USB controllers, IOKit and serial drivers, dyld persistence, multiple kernel interfaces and network paths, and authorization for loaded kernel-extension management.

1. [1] About the security content of OS X Mavericks v10.9 · Bluetooth; dyld; IOKitUser; IOSerialFamily; Kernel; Kext Management; USB

Users could complete several common communication actions directly from a notification without switching away from the application they were using.

1. [1] Apple Releases Developer Preview of OS X Mavericks With More Than 200 New Features · Additional features; interactive Notifications
2. [2] OS X Mavericks Available Today Free from the Mac App Store · Feature list; interactive Notifications

Mavericks brought a tabbed workflow to Finder so users could organize several locations in a single window and reduce desktop clutter.

1. [1] OS X Mavericks Available Today Free from the Mac App Store · Feature list; Finder Tabs
2. [2] Apple Releases Developer Preview of OS X Mavericks With More Than 200 New Features · Finder Tabs paragraph

Mavericks added user-facing diagnostics for current and historical energy demand, including a battery-menu signal for applications using substantial energy.

1. [1] Power Efficiency in OS X · Pages 5–6; Activity Monitor and Battery status menu

The operating system shifted eligible timer execution within small priority-sensitive windows, combining wakeups from multiple processes to reduce unnecessary CPU activity.

1. [1] OS X Mavericks Available Today Free from the Mac App Store · Core technologies; Timer Coalescing
2. [2] Power Efficiency in OS X · Pages 3–4; Timer Coalescing

Apple's advisory records corrections to blocked-app handling, removal of reset Safari session cookies, and adoption of TLS 1.2 in CFNetwork to mitigate weaknesses in older protocol modes.

1. [1] About the security content of OS X Mavericks v10.9 · Application Firewall; CFNetwork; CFNetwork SSL

The system coordinated recurring background tasks around power state so nonessential work could happen later or only while external power was available.

1. [1] Power Efficiency in OS X · Page 3; Centralized Task Scheduling

The release established a no-cost major OS X upgrade and retained the preceding Mountain Lion hardware baseline, while allowing installation from three prior system generations.

1. [1] Apple security updates (2013) · OS X Mavericks v10.9 — 22 Oct 2013
2. [2] OS X Mavericks Available Today Free from the Mac App Store · Pricing & Availability