How to Use iPhoto Instead of Mac Photos App in OS X

Some users who have updated to new versions of OS X with Photos app have discovered that Photos app does not meet their needs, and thus would like to continue using iPhoto on the Mac. This is possible, at least for the time being, but there can be some hiccups in getting iPhoto running again in OS X Yosemite with Photos app installed. Visit the Macs /Applications/ folder and open iPhoto app to discover if you need to take further action or not, some users will have the app open just fine and need no further steps – you’re good to go at that point. But, not all OS X users are in that boat, and sometimes you’ll see the iPhoto icon has a cross through it signifying it won’t open.
Most commonly, Mac users will encounter the following error message when trying to launch iPhoto on a Mac with Photos app: “In order to open “iPhoto.app”, you must update to the latest version. The version of iPhoto installed on this Mac is not compatible with OS X Yosemite. Download the latest version for free from the Mac App Store.” but when you click on “Search App Store”, you’ll get an error saying “Item Not Available”.


If you’ve ever hit “Send” on an iMessage or text message that you wish you could take back, or perhaps you’d just like to cancel a sent picture because it’s stuck on ‘Sending’ and taking forever to send the message due to a congested network connection, then you may find this iPhone “cancel send” trick to be handy. 
iPhone and iPad users can opt to use a new “Filter Unknown Senders” feature in the iOS messaging app which will automatically hush and separate inbound messages that are coming from unrecognized contacts. This is extremely useful if your phone number is publicly listed on a web site like Craigslist, if you’re a public figure, or if you just happen to get a notable amount of inbound messages from numbers you don’t recognize. 



