Following the public display of love for Linux by Microsoft and \u201copen sourcing\u201d of .NET, now Apple is also doing something similar.\nCraig Federighi, Apple's senior vice president of software engineering said during his WWDC 2015 keynote, "We think Swift is the next big programming language. The one we will all be doing applications and systems programing on for 20 years to come. And we think Swift should be everywhere and used by everyone. And so we are going to be doing something really big. Today we're announcing that Swift will be open source."\nThe announcement was greeted with a huge round of applause from the audience.\nFederighi (who is undoubtedly one of the most entertaining Apple presenters) had more surprises in store. He then shocked us by saying, "We will be rolling out the compiler and standard libraries for iOS, OSX and Linux."\nYes, he did say Linux. It\u2019s exciting to see the words Linux and Open Source at the grand stage of an Apple event. It\u2019s certainly a sea change in the market.\nThe company said in a blog post that Swift will be released under an OSI-approved permissive license. Source code will include the Swift compiler and standard library. While GNU GPL is also an OSI approved license, I doubt Apple would choose that one; my wild guess is it would be BSD or Apache license.\nSimon Phipps the former director of OSI was cautious about it and told me, "While every additional piece of open source software extends the opportunities for software freedom, the critical question for a programming language is less whether it is itself open source and more whether it's feasible to make open source software with it. Programming languages are glue for SDKs, APIs and libraries. The real value of Swift will be whether it can realistically be used anywhere but Apple's walled garden."\nJim Zemlin, Executive Director of The Linux Foundation congratulated Apple on this important move and said, "This is a smart move for Apple and a big win for the developer community.\u00a0Apple has long valued developers, but this week adopted a key strategy that\u00a0has become the defacto approach to programming languages: open source."\nHe further added, "It\u2019s inspiring to see companies like Apple and Microsoft validate the work\u00a0we\u2019ve been doing for more than two decades. As we move deeper into the\u00a0complexities of the Internet of Things (IoT), mobile computing and\u00a0automotive technologies (key battlefields in tech), Apple, Microsoft,\u00a0Facebook, Amazon, Google and many others look to open source software to\u00a0advance innovation in these areas. Equipping the developer community with\u00a0what it needs is the right way to go."\nWhen I asked Eric S Raymond, the author of The Cathedral and the Bazaar and renowned open source developer, he said, \u201cI am generally in favor of anyone open sourcing anything, but know nothing about this case so can't judge its relative importance well."\nThe good news is, unlike a few open source projects, Swift development will have community involvement. Apple said in a blog post that "contributions from the community will be accepted \u2014 and encouraged."\nThat\u2019s a smart move by Apple because it\u2019s not just the community that will benefit from the open sourcing of Swift. In fact, Apple will be the biggest beneficiary. No software is free of bugs and Swift is no exception. The community contribution will help Apple in finding and fixing the bugs in the language and make it even better.\nOpen Source is a win-win model and Apple has made \u2018Swift\u2019 but right moves.