Android 13 is the thirteenth major release and the 20th version of Android, the mobile operating system developed by the Open Handset Alliance led by Google. It was released to the public and the Android Open Source Project (AOSP) on August 15, 2022. The first devices to ship with Android 13 were the Pixel 7 and 7 Pro.
Android is a mobile operating system based on a modified version of the Linux kernel and other open-source software, designed primarily for touchscreen mobile devices such as smartphones and tablets. Android is developed by a consortium of developers known as the Open Handset Alliance, though its most widely used version is primarily developed by Google. It was unveiled in November 2007, with the first commercial Android device, the HTC Dream, being launched in September 2008.
The Android Package with the file extension apk is the file format used by the Android operating system, and a number of other Android-based operating systems for distribution and installation of mobile apps, mobile games and middleware. A file using this format can be built from source code written in either Java or Kotlin.
Bengali input methods refer to different systems developed to type the characters of the Bengali script for Bengali language and others, using a typewriter or a computer keyboard.
The version history of the Android mobile operating system began with the public release of its first beta on November 5, 2007. The first commercial version, Android 1.0, was released on September 23, 2008.
The operating system is developed by Google on a yearly cadence since at least 2011. New major releases are announced at Google I/O in May while still in beta testing with the stable version usually released to the public between August and October.
Pale Moon is a free and open-source web browser licensed under the MPL-2.0 with an emphasis on customization. Its motto is "Your browser, Your way." There are official releases for Microsoft Windows, FreeBSD, macOS, and Linux.
This is a comparison of mobile operating systems. Only the latest versions are shown in the table below, even though older versions may still be marketed.
Fire OS is a mobile operating system based on the Android Open Source Project (AOSP). It is developed by Amazon for their devices. Fire OS includes proprietary software, a customized user interface primarily centered on content consumption, and heavy ties to content available from Amazon's storefronts and services.
Android Lollipop is the fifth major version of the Android mobile operating system developed by Google and the 12th version of Android, spanning versions between 5.0 and 5.1.1.
Stagefright is the name given to a group of software bugs that affect versions from 2.2 "Froyo" up until 5.1.1 "Lollipop" of the Android operating system exposing an estimated 950 million devices at the time. The name is taken from the affected library, which among other things, is used to unpack MMS messages. Exploitation of the bug allows an attacker to perform arbitrary operations on the victim's device through remote code execution and privilege escalation. Security researchers demonstrate the bugs with a proof of concept that sends specially crafted MMS messages to the victim device and in most cases requires no end-user actions upon message reception to succeed—the user doesn't have to do anything to 'accept' exploits using the bug; it happens in the background. A phone number is the only information needed to carry out the attack.
LineageOS is an Android-based operating system for smartphones, tablet computers, and set-top boxes, with mostly free and open-source software. It is the successor to CyanogenMod, from which it was forked in December 2016, when Cyanogen Inc. announced it was discontinuing development and shut down the infrastructure behind the project. Since Cyanogen Inc. retained the rights to the Cyanogen name, the project rebranded its fork as LineageOS.
HarmonyOS (HMOS) is a distributed operating system developed by Huawei for smartphones, tablets, smart TVs, smart watches, personal computers and other smart devices. It has a single real-time microkernel design in kernel mode with a single framework: the operating system derives from HarmonyOS NEXT, based on OpenHarmony operating system family that is the user mode of HarmonyOS NEXT system that takes full L0-L2 source code derived from LiteOS roots that selects suitable kernels from the kernel abstraction layer. The operating system was officially launched by Huawei in August 2019.
GrapheneOS is an Android-based, open source, privacy and security-focused mobile operating system for selected Google Pixel devices, including smartphones, tablets and foldables that is recommended by Edward Snowden.
MicroG is a free and open-source implementation of proprietary Google libraries that serves as a replacement for Google Play Services on the Android operating system. It is maintained by German developer Marvin Wißfeld. In a presentation, Wißfeld described microG as "the framework to create a fully-compatible Android distribution without any proprietary Google components".
Huawei Mobile Services (HMS) is a collection of proprietary services and high level application programming interfaces (APIs) developed by Huawei Technologies Co., Ltd. Its hub known as HMS Core serves as a toolkit for app development on Huawei devices. HMS is typically installed on Huawei devices on top of running HarmonyOS operating system, and on its earlier devices running the Android operating system with EMUI including devices already distributed with Google Mobile Services. Alongside, HMS Core Wear Engine for Android phones with lightweight based LiteOS wearable middleware app framework integration connectivity like notifications, status etc.
iodéOS is an Android-based mobile operating system developed by French company iodé. The operating system is a fork of LineageOS and does not include Google Play Services, instead using MicroG as a free and open-source replacement.
CalyxOS is an operating system for smartphones based on Android with mostly free and open-source software. It is produced by the Calyx Institute as part of its mission to "defend online privacy, security and accessibility."
DivestOS is an operating system based on the Android mobile platform. It is a soft fork of LineageOS that aims to increase security and privacy with support for end-of-life devices. As much as possible, it removes unnecessary proprietary Android components and includes only free-software.
