The OS X Yosemite v10.10.5 Update is recommended for all OS X Yosemite users. The OS X Yosemite 10.10.5 update improves the stability, compatibility, and security of your Mac, and is recommended for all users. This update: Improves compatibility with certain email servers when using Mail. The App Store only shows updates for the OS you are using at the moment, in your case Yosemite 10.10.5. If you want to go to another newer OS that is called an upgrade. This can be done through the App Store using the following link. How to upgrade to macOS High Sierra - Apple Support. High Sierra is the last/ newest OS your Mac can use.
Apple OS X El Capitan beta was first released to developers in July 2015 and was released to the millions of Apple consumers worldwide September of 2015, following several beta releases. This version of the Apple Mac OS X marks a significant milestone in Apple Mac OS history for many reasons. It was the 12th major release of the Mac OS X line, since the introduction of the new brand in 2002 by Apple from its previous product line of Mac OS.
Download El Capitan OS X is also significant since it’s the last version of Apple Mac OS X releases as its successor Sierra was released in the year 2016 under the brand macOS. El Capitan is a rock formation found in Yosemite National Park, which gives out the meaning that the new release is a solid version of its predecessor, Yosemite. The naming convention to use important landmarks of Northern California started with the Apple release of Mavericks.
At the time of release, El Capitan was promoted as a significant release by Apple similar to how they promoted Mavericks and Yosemite upgrades which were the predecessors of El Capitan.
Brief Guide For Download El Capitan
In this article, we’ll also discuss few things that you should do before you upgrade your OS to the new Download El Capitan version in order to make sure your computer is all ready for the new upgrade including whether your Mac is compatible both in terms of hardware and software. There we will discuss the minimum system requirements and supported Mac devices released in the past.
Installation Methods For Download El Capitan
1. Download El Capitan Mac OS X from scratch while upgrading the current Mac OS version
Mac Os Yosemite Compatibility
The new Apple El Capitan supports two installations methods. As in the case of many other operating system installations, Apple El Capitan also provides an option to upgrade from your current OS version or the option to install the new download El Capitan Mac OS X from scratch. The default method which is the upgrade installation option will try to install OS X El Capitan to your Mac device while protecting your user data and app data. This is currently the most frequently used method of upgrading to the new version of Mac OS X and also the easiest too. If your Mac computer is in very good shape and running smoothly, it is recommended to install using this method.
2. Download El Capitan and install fresh the Mac OS without upgrading current Mac OS version
The second method of installations is the clean install method. It basically erases the entire content of your chosen drive and installs a fresh, smooth version of the new operating system which is download El Capitan Mac OS X in this case. This would mean no older versions of the Mac OS X, system applications and user data all will be wiped out with a clean install. This is an excellent choice to test an operating system on a separate disk drive or a partition in cases where you have had prevailing software issues on your computer which you have been unable to fix. Therefore when these issues become a major headache for you, your best option is to perform a clean install of the OS X – El Capitan. Although you may have to let go of your apps and their data, it becomes a smaller price to pay for when compared to running the system in its current state with a truckload of software issues.
The upgrade install option is pretty straightforward. Therefore in this article, we will only discuss the download El Capitan andclean installation of El Capitan Mac OS X.
Download El Capitan iso and dmg installer
This tip is designed to be a one stop shop to find out what iOS you can use if you are able to install a specific Mac OS X.
Now updated for iOS 13. Including a method to downgrade to iOS 10.3.3, and a method of downgrading to iOS 11.4.
On September 19, 2019, iOS 13 was released. Present requirements for iOS 13 include Mac OS 10.11.6 for iTunes 12.8 as a bare minimum.
Two factor authentication logins for AppleID unlocks was introduced on Mac OS 10.12.4. If your iOS is current for it, you can usually use it to unlock either from another current iOS device, or http://iforgot.apple.com if you don't have a Mac.
Mac Os Yosemite Compatibility 10.10
On May 29, 2019, it was found that iOS 12.1.5 could sync with iTunes on Mac OS X 10.10.5 if you kept iTunes 12.5.5.
This thread discusses more of the inconsistent requirements that were initially stated:
https://www.imobie.com/support/how-to-downgrade-from-ios-12-to-ios-11.htm offers a means of downgrading from iOS 12 to iOS 11, if no other means work to link an elderly Mac that can't be updated to 10.11. Be very careful to backup your data properly to avoid problems. Consider a lightning port data transfer device if you need to backup data. And remember no backup is complete, unless you know you have two working copies.
Downgrading Mac OS X is possible in many cases, but your iOS is not at all. Downgrading a Mac is described here:http://discussions.apple.com/docs/DOC-1948
iOS 12 & Yosemite -is a new tip I constructed to cover what can be done for those with Yosemite when downgrading the iOS is no longer possible.
Oct 28, 2012 With Lync, you can keep track of your contacts’ availability; send an instant message; and start or join an audio call, video call, or online meeting—all through a consistent, familiar interface. Lync integrates with other Office programs and is available for Windows, Mac, Windows Phone, iPhone, iPod, Android, and Office 365 subscribers. The Skype for Business web-downloadable meetings app now supports Video-based Screen Sharing! 2,534 Application Sharing Failures after Applying July, 10 2018 Windows Security Fixes. 
Lync Web App is the browser-based version of Lync 2010 that allows people who don’t have a Lync account and haven’t installed the Lync client to participate in Lync meetings, using either a Windows or Macintosh operating system. Disk Inventory X is a disk usage utility for Mac OS X. It shows the sizes of files and folders in a special graphical way called ' treemaps '. If you've ever wondered where all your disk space has gone, Disk Inventory X will help you to answer this question. Nov 18, 2014 With most Office 365 plans, you’re able to download and install full versions of Microsoft Office programs like Word, Excel, and PowerPoint on your PC, Mac, or mobile device. All of these desktop applications connect to the cloud just like the online (web app) versions, which means you can do your work with or without an internet connection.
For iOS earlier than 5, see this tip:Which OS do I have and where should I post?So be sure to look this over before upgrading your iOS and backup/sync your iOS with your Mac:
Mac OS X 10.5.8 (Leopard) supports PowerPC Macs, iTunes 10.6.3, iOS 5.1.1.Mac OS X 10.6.8 (Snow Leopard) supports Intel only Macs, but does support PowerPC applications, iTunes 11.4 and iOS 6, and iOS 7.Mac OS X 10.7.3 (Lion) supports iCloud except for iCloud Drive in its current iteration and the new Notes.Mac OS X 10.7.5 (Lion) (link explains the pitfalls of losing PowerPC applications) supports iTunes 12.2.2.25 (available from Software update as of 10/24/2015), iOS 8 and iOS 9.0.Mac OS X 10.8 (Mountain Lion) is required for iTunes 12.3 and iOS 9.2 and iOS 9.2.1(except iCloud Drive, and the new notes). Does not support iOS 10 or iTunes 12.5.1 according to the Wikipedia below.Mac OS X 10.9.5 (Mavericks)one user has said is required for iOS 10 and iTunes 12.5. It is though unable to sync with iOS 11.Mac OS X 10.10 (Yosemite) is required minimum for the new iCloud Drive and iOS 11 (except for Notes, which requires El Capitan). iTunes 12.7.0.166 is needed for iOS 11.iTunes 12.8 is now available for 10.11.6 and later. I have waited for any confirmation of working 10.10.5 systems and it appears the system requirements are in error on the website for linking to iOS 12.
Mac OS X 10.11 (El Capitan) is required for the new Notes on iOS 9, and 10.11.6 for the iPhone XR, XS, and iOS 12 and is compatible with all Mac OS X 10.8 and later compatible Macs. It is available for download only for Macs with 10.6 installed and updated to 10.6.8.
Mac OS 10.12 (Sierra) currently has no special requirements as of September 23, 2017, however is a free path to upgrade from Macs that shipped with Lion, that upgraded to 10.7.5 or later, and then updated to Sierra to be able to synchronize with iOS 12.
Should I Update My Mac From Yosemite
iOS 12 was released September 17, 2018. Please make sure to backup your data on your iphone, ipad, or ipod touch and not apply any update until you are certain that iTunes on your Mac or PC can handle it.
Some may find running Windows on their Mac Running Windows on a Mac, and Connecting it to Macor creating a separate partition for a newer Mac OS How to format a drive, or disc for maximum portability?allows one to sync to a newer iOS without losing compatibility of older Mac OS versions.
Is Mac Os Yosemite Still Supported
Stuck in Mavericks, Mac OS X 10.9.5? There is a published way to downgrade your iOS.
Note: this is not for the faint at heart, but sure is better than having to upgrade your Mac OS X prematurely for an App you can't afford upgrading on your Mac.
The last iOS supported for various iDevices is listed on the table called 'Terminal update for' on:https://en.wikipedia.org/wiki/IOS_version_history
Update from mountain lion to catalina. And many of the latest iOS versions and iTunes support are on https://en.wikipedia.org/wiki/History_of_iTunes
Notes: Upgrading to 10.7 and above, don't forget Rosetta! and High Sierra upgrading tipoffer two means of getting your Mac up to speed with iTunes 12.8. Use the first tip if running 10.6.8 or earlier to get to 10.11. And use the other tip if running 10.8 or later.