docs(blog): add 14.7.9 release notes for tvOS/macOS support

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: hyochan

docs/blog/2026-02-10-14.7.9-tvos-macos-support.md

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+---
+slug: 14.7.9
+title: 14.7.9 - tvOS, macOS & watchOS Support
+authors: [hyochan]
+tags: [release, tvos, macos, watchos, bug-fix]
+date: 2026-02-10
+---
+
+# 14.7.9 Release Notes
+
+react-native-iap 14.7.9 adds official support for **tvOS**, **macOS**, and **watchOS** platforms, along with listener timing bug fixes.
+
+<!-- truncate -->
+
+## New Features
+
+### Multi-Platform Support
+
+| Platform | Minimum Version |
+|----------|-----------------|
+| iOS | 15.0 |
+| tvOS | 15.0 |
+| macOS | 14.0 |
+| watchOS | 8.0 |
+| visionOS | 1.0 |
+
+### Platform Detection Helpers
+
+```tsx
+import {isTVOS, isMacOS, isStandardIOS, isNitroReady} from 'react-native-iap';
+
+isTVOS();       // true on Apple TV
+isMacOS();      // true on macOS (native or Catalyst)
+isStandardIOS(); // true on iPhone/iPad only
+isNitroReady(); // true when Nitro module is initialized
+```
+
+## Bug Fixes
+
+### Listener Registration Timing
+
+Fixed an issue where `onPurchaseSuccess` callbacks were not being called consistently. Listeners are now registered **after** `initConnection()` completes.
+
+### Unmount Guard
+
+Added `isMountedRef` guard to prevent listener leaks on early component unmount.
+
+## Installation
+
+```bash
+yarn add react-native-iap@14.7.9
+```
+
+## Related
+
+- PR: [#3145](https://github.com/hyochan/react-native-iap/pull/3145)
+- Closes [#3141](https://github.com/hyochan/react-native-iap/issues/3141), [#3143](https://github.com/hyochan/react-native-iap/issues/3143)