Windows/macOS Sierra: With the launch of macOS Sierra , Postbox, one of our favorite desktop email clients, just got a huge update as well. Postbox 5 features custom placeholders for your canned responses, anti-tracking alerts, and the ability to instantly forward important messages to Evernote, Slack, Zapier, and more.

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Siri is one of the landmark features in Sierra , but while you can call it up in three different ways, a keyboard shortcut is probably the most useful.

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If you want to do a clean install of macOS Sierra , or you have multiple Macs to install it on, then a bootable flash drive is your best bet. Here’s how to make one.

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Bluetooth headphones are regularly available for around $20 these days, but if you want truly wireless headphones (with no cord running between the buds behind your neck), you’ve been forced to spend $180 and up for options from the likes of Motorola and Bragi, or $159 starting next month for Apple’s AirPods. Luckily, a new competitor has emerged to bring wireless tech to the rest of us.

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Dear Lifehacker,
Sierra is out today and some of the new features, like Siri, look pretty great. Of course, it seems like a small enough upgrade, but that doesn’t mean things won’t go bad. You’ve been using it, what do you think? Should I upgrade, or wait?

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