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CyanogenMod (pronounced ), usually abbreviated to CM, is an open-source operating system for smartphones and tablet computers, based on the Android mobile platform. It is developed as free and open source software based on the official releases of Android by Google, with added original and third-party code. It is based on a rolling release development model. CyanogenMod offers features and options not found in the official firmware distributed by mobile device vendors. Features supported by CyanogenMod include native theming support, FLAC audio codec support, a large Access Point Name list, an OpenVPN client, ''Privacy Guard'' (per-application permission management application), support for tethering over common interfaces, CPU overclocking and other performance enhancements, unlockable bootloader and root access, soft buttons and other "tablet tweaks", toggles in the notification pull-down (such as Wi-Fi, Bluetooth and GPS), and other interface enhancements. CyanogenMod does not contain spyware or bloatware, according to its developers. CyanogenMod is also stated to increase performance and reliability compared with official firmware releases. Although only a subset of total CyanogenMod users elect to report their use of the firmware, as of March 23, 2015, some reports indicate that over 50 million people run CyanogenMod on their phones. In 2013, project founder Steve Kondik announced that venture funding had been obtained to establish Cyanogen Inc. as a commercial enterprise to develop and market the firmware more widely. This announcement has led to controversy within the community, with some developers asserting that rights and licensing issues, acknowledging/compensating past developers and honoring the original ethos of the community project, are not being adequately addressed.〔(Guillaume Lesniak - Developer of "Focal" Camera App, Google+ post 2013-09-20 ) - covers licensing and dispute controversy with Cyanogen Inc.〕 These claims were rejected by Kondik, who affirmed support for the community and stated that most CyanogenMod code, as with Android generally, is bound by a non-restrictive Apache license. == History and development == Soon after the introduction of the HTC Dream (named the "T-Mobile G1" in the United States) mobile phone in September 2008, a method was discovered to attain privileged control (termed "root access") within Android's Linux-based subsystem. Having root access, combined with the open source nature of the Android operating system, allowed the phone's stock firmware to be modified and re-installed onto the phone. In the following year, modified firmwares for the Dream were developed and distributed by Android enthusiasts. One, maintained by a developer named ''JesusFreke'', became popular among Dream owners. In August 2009, JesusFreke stopped work on his firmware, and suggested users switch to a version of his ROM that had been further enhanced by developer ''Cyanogen'' (Steve Kondik) called "CyanogenMod". CyanogenMod grew in popularity, and a community of developers, called the CyanogenMod Team (and informally "Team Douche") made contributions. Within a few months, the number of devices and features supported by CyanogenMod blossomed, and CyanogenMod became one of the popular Android firmware distributions. Similar to many open source projects, CyanogenMod is developed using a distributed revision control system with the official repositories being hosted on GitHub. Contributors submit new features or bugfix changes using Gerrit. Contributions may be tested by anyone, voted up or down by registered users, and ultimately accepted into the code by one of a handful of CyanogenMod developers. A version of ADW.Launcher, an alternative launcher (home screen) for the Android operating system, became the default launcher on CyanogenMod 5.0.8. The launcher provides additional features not provided by the default Android launcher, including more customization abilities (including icon themes, effects, and behavior), the ability to backup and restore configuration settings, and other features.〔(【引用サイトリンク】url=http://www.pcworld.com/appguide/app.html?id=547659&expand=false )〕 As of version 9, CyanogenMod's own launcher, Trebuchet, is included with the firmware. Initially, CyanogenMod releases were provided on a nightly, milestone, and "stable version" schedule; as of CyanogenMod 11 M6, the "stable" label will no longer be used, having been supplanted by "milestone" ''M-builds'' that are part of the CyanogenMod's rolling release development model. Some unofficial builds for supported devices are listed in CyanogenMod Wiki.〔(Unofficial Ports ), CyanogenMod Wiki.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「CyanogenMod」の詳細全文を読む スポンサード リンク
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