The update also includes a new 'look up' panel with Spotlight suggestions, and several other improvements.
We got to see some of these features when OS X 10.10.
Updating your machine to OS X 10.10.2 should improve Wi Fi reliability, and should also improve other elements of the operating system including i Cloud Drive and Voice Over.
Here's the list of improvements in 10.10.2: Resolves an issue that may cause Wi Fi to disconnect Resolves an issue that may cause web pages to load slowly Fixes an issue that caused Spotlight to load remote email content when the preference was disabled in Mail Improves audio and video sync when using Bluetooth headphones Adds the ability to browse i Cloud Drive in Time Machine Improves Voice Over speech performance Resolves an issue that causes Voice Over to echo characters when entering text on a web page Addresses an issue that may cause the input method to switch language unexpectedly Improves stability and security in Safari Reports of connectivity issues cropped up within hours of Apple releasing Yosemite on 16 October, and have continued to pour in since.
Like many others, we have experienced Wi-Fi connection failures and slow speeds since updating to Yosemite.
OS X Lion is no longer the most current version of the OS X operating system as of May 2015, as OS X version 10.10 has superseded it.
Many computers that can upgrade to Lion are also able to upgrade to Yosemite directly.
Read: Yosemite vs Windows 10 comparison Apple released the latest version of Yosemite on 8 April, ushering in a wave of new features.
OS X 10.10.3 includes the all-new Photos app – which we got a sneak peak of during the introduction of Yosemite during Apple's WWDC in 2014 – plus 300 new diversified emoji like those in i OS 8.3.