The out-of-office reply is a handy feature that lets you respond to emails automatically with a message saying that you are out of the office, or anything else you want it to say. Just about every email provider offers this feature, though Apple's Mail app does not have the option - you have to set it up on your Mac with Mail rules, and they are client-side, which means your Mac has to be on the whole time you are away in order to respond with your message.
One of several new features in iOS 12.2 is the addition of the Air Quality Index to the Maps app. The AQI is a measurement of air quality that takes into account ground level ozone, particulates (which includes things like ash and pollen), carbon monoxide, sulfur dioxide and nitrogen dioxide.
Mindfulness is the very simple concept of focusing one's attention on the present moment, which can be achieved through a number of meditative techniques. Derived from Buddhist practices, it is far from a fringe belief - in fact, it is now widely used in many clinical settings to alleviate symptoms associated with depression, anxiety and stress, and is employed in some behavioral and cognitive therapies.
Apple's recently announced News+ service gives subscribers access to over 300 magazines and several newspapers including popular titles such as National Geographic, Vanity Fair, The Atlantic, The New Yorker, Popular Science and The Wall Street Journal to name a few - for $9.99 per month. Depending on how many magazines you currently subscribe to à la carte, this could be a very deep discount.
One of the best features of Apple's iWork suite (Pages, Numbers and Keynote) is the ability to easily collaborate with friends and coworkers. Rather than simply sharing your documents for others to view or critique or go off on their own tangent with, collaborating allows all parties involved to edit the document, and everybody will see the edits. It is an incredibly useful feature whether you are working on a Keynote presentation with coworkers or simply sharing a spreadsheet among friends to keep track of expenses on a trip.