Mavericks OS X 10.9 is a significant improvement to the desktop operating system that Apple has made available to the 2007 or the latest Macs which run on Lion, Snow Leopard or Mountain Lion. Dec 27, 2017 Mac OS X Mountain Lion 10.8.5 Review Apple has now released the Mac OS X 10.8.5 Mountain Lion release after a long beta period. This version tends to be more secure and even more efficient than the previous versions of Mac OS. Comes up with a sleeker and very friendly user interface to handle all the problems with a comfortable environment.
In order to upgrade to the dizzying heights of Catalina your Mac must have Mac OS X Mavericks as its minimum OS
requirement. As you are on Lion you will need to do an intermediate OS install. Mavericks is no longer available.
You can still get El Capitan (10.11.6) from here, How to upgrade to OS X El Capitan - Apple Support
go to Section 4 and click on Get Mac OS X El Capitan, this will download a .dmg file which you then
double-click to start the installation.
After El Capitan is installed then you can upgrade to Catalina, but if you are not aware yet Catalina does not run 32bit apps.
So I would suggest you install Mojave again and all the apps you would use, Upgrade to macOS Mojave - Official Apple Support
Once you have determined what apps you had previously on Mojave that were 32bit and whether or not the developers of those apps are updating them to 64bit then you can consider Catalina. Use this app, https://www.stclairsoft.com/Go64/ to check for 32bit apps. Google chrome 64 bit download latest version.
Oct 30, 2019 2:19 AM
OS X 10.8 Mountain Lion is the last Apple operating system named after 'big cats.' The ninth major release of OS X was announced in February, 2012 and released in July. More than 200 new features were added in this release, which cost buyers $19.99.
Mountain Lion Pictures
Hallmarks of Mountain Lion included a focus on improved management of content between Apple devices regardless of whether they run iOS or OS X. Apple focused its attention on producing a seamless, familiar user experience. OS X's iChat app was replaced with Messages, an app named after its iOS counterpart. Notes and Reminders became independent apps, while another iOS feature — Notification Center — made its first appearance on the Mac. Mountain Lion also introduced Gatekeeper, Apple's anti-malware system.
Mountain Lion saw the integration of Game Center, the social gaming network Apple first introduced on iOS. Game Center provides gamers with chat, game matching and achievement tracking. The last vestiges of MobileMe were removed, and in their place Mountain Lion fully embraced iCloud, Apple's current cloud service.
Power Nap allowed late-model Macs to synchronize reminders, calendars, notes and other content with iCloud while the Mac was asleep. The feature also enabled Macs for the first time to back up using OS X's integrated Time Machine system while asleep, as well. Os x 9 mavericks download.
Mountain Lion's software update service saw complete integration with the Mac App Store, rather than requiring users to download separate updates from Apple's support servers.
Mountain Lion introduced support for AirPlay mirroring; with an Apple TV on the same Wi-Fi network it became possible to wirelessly mirror the Mac screen. And on the accessibility front, Mountain Lion introduced Dictation, providing systemwide voice input.
More of an emphasis was made in Mountain Lion to enable better social media integration. Systemwide sharing of links, photos, videos and other files was added to popular services like Facebook, Twitter, Flickr and Vimeo.
Os After Mountain Lion Sleeps
Imac 12 1 mojave. Mountain Lion was superceded in 2013 by OS X Mavericks