Updating osx 10 3
They recommend using the Print window's built-in PDF - Mail PDF function when you go to print a PDF.You should really at least backup everything to two separate destinations that are not touched by the computer before upgrading or until after the upgrade is complete. Printer and scanner driver issues with Yosemite are covered with more details on my Mac OS X printers page.Its System Requirements on the low end are identical to its predecessor Sierra although some new features may require newer hardware. Also, unlike Sierra, your Mac must be running a mimimum of Mountain Lion.
I have a Power PC Mac right now standing at 10.4.8, which I could upgrade to 10.4.11, except I have some old games which won't run on 10.4.11.Note, download times may be longer than usual on first release.Backup (link explains how) your data before you install anything.Software tested before that date may not work with the operating system. issues have been reported on Apple Support Communities.IMAP e-mail is by default server based, and if you trust your internet provider to back it up, may be a better solution.
The fact the update works at all is a testament to how well tested the software is.