Apple has released both iOS 9.2.1 and OS X 10.11.3:

Apple Releases iOS 9.2.1 With Bug Fixes, Security Updates
Apple Releases OS X 10.11.3 El Capitan With Multiple Bug Fixes

Apple Releases iOS 9.2.1 With Bug Fixes, Security Updates

iOS 9.2.1, as a 9.x.x update, is minor in scale, focusing mainly on under-the-hood performance improvements and bug fixes rather than outward-facing changes. According to Apple's release notes, the update includes security improvements and bug fixes, including a fix for a significant Mobile Device Management issue that affected enterprise customers. This update contains security updates and bug fixes including a fix for an issue that could prevent the completion of app installation when using an MDM server.iOS 9.2.1 will be followed by iOS 9.3, which has also been seeded to developers for testing purposes. Set to be released in the spring, iOS 9.3 is a major update that introduces a new Night Shift feature to cut down on blue light exposure during the evening for better sleep and brings new educational features.

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Apple Releases OS X 10.11.3 El Capitan With Multiple Bug Fixes

During the beta testing period, no significant outward-facing changes were discovered in OS X 10.11.3, with the update instead aiming to improve performance and fix bugs discovered since the launch of OS X 10.11.2. According to Apple's release notes, OS X 10.11.3 includes unspecified bug fixes and security updates. The OS X El Capitan 10.11.3 update improves the stability, compatibility, and security of your Mac.

Read full article @ MacRumors