MacOS High Sierra

In plain words

macOS High Sierra is Apple's operating system update released in 2017. It is designed for Mac users who want the latest features and improvements to their system. The update includes enhancements to developer tools and overall system performance. It is intended for anyone using Mac computers who wants to stay current with Apple's latest software offerings.

written from the facts on this page · September 2026

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  macOS Sierra2016 · apps.apple.com · ▲629

  All new OS for your Mac

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  macOS Big Sur2020 · apple.com · ▲283

  New macOS with enhancements to Messages, Maps, & privacy

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  MacOS Sequoia2024 · apple.com · ▲532

  The newest Mac software from Apple

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  iOS 112017 · apple.com · ▲365

  The latest operating system from Apple

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  macOS Mojave2018 · apple.com · ▲635

  The next generation of software for Macs

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  Xcode 7.02015 · apps.apple.com · ▲280

  Swift 2 and SDKs for iOS 9, watchOS 2, and OS X 10.11

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  /dev/null▲481

  a social network for devs

  Dev tools · 2d ago · dev-null.sh

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  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

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  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 25d ago · github.com

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  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 22d ago · openbot.run

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  Talanoa▲341

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 20d ago · talanoa.email

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  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 28d ago · corespeed.io

• GP
  Get Paid to Build Your Next Side Project▲1,100

  Work · 2017 · demandrush.com

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  Monica, an open-source CRM to manage friends and family▲1,097

  Monica helps you remember the people you care about: what is happening in their life, important dates, previous conversations, and when to get back in touch. Private, open source, self-hostable.

  Dev tools · 2017 · monicahq.com

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  Feather Icons▲1,017

  Simply beautiful open source icons

  Dev tools · 2017 · feathericons.com

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  Roadmap beta▲832

  Plan projects and manage resources with ease.

  Work · 2017 · onroadmap.com

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  Runway▲825

  The cash planning tool for startups

  Growth · 2017

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  How to Acquire More Users▲806

  The growth guide by DemandCurve.com and Julian Shapiro

  Growth · 2017 · julian.com