Straight from Wikipedia
Actually most of us have upgraded our devices to Android 11 so couldn't make a detailed post!😅 Sorry 😭!
Android 10 (codenamed Android Q during development) is the tenth major release and the 17th version of the Android mobile operating system. It was first released as a developer preview on March 13, 2019, and was released publicly on September 3, 2019.Android 10 was officially released on September 3, 2019, for supported Google Pixel devices, as well as the third-party Essential Phone and Redmi K20 Pro in selected markets.[3][4] The OnePlus 7T was the first device with Android 10 pre-installed. In October 2019, it was reported that Google's certification requirements for Google Mobile Services will only allow Android 10-based builds to be approved after January 31, 2020.
As of October 2021, 28.6% of Android devices run Android 10 (API 29), making it the second most used version of Android.
Navigation
Android 10 introduces a revamped full-screen gesture navigation system and new app open and close animations, with gestures such as swiping from either side edge of the display to go back, swiping up to go to the home screen, swiping up and holding to access Overview, swiping diagonally from a bottom corner of the screen to activate the Google Assistant, and swiping along the gesture bar at the bottom of the screen to switch apps. The use of an edge swiping gesture as a "Back" command was noted as potentially causing conflicts with apps that utilize sidebar menus and other functions accessible by swiping. An API can be used by apps to opt out of handling a back gesture within specific areas of the screen, a sensitivity control was added for adjusting the size of the target area to activate the gesture, and Google later stated that the drawer widget would support being "peeked" by long-pressing near the edge of the screen, and then swiped open. The traditional three-key navigation system used since Android "Honeycomb" remains supported as an option, along with the two-button "pill" style navigation introduced in Android 9.0 Pie.
Per Google certification requirements, OEMs are required to support Android 10's default gestures and three-key navigation. OEMs are free to add their own gestures alongside them. However, they must not be enabled by default, they must be listed in a separate area one level deeper than other navigation settings, and they cannot be promoted using notifications. The two-key gesture navigation system used on Android Pie is deprecated, and may not be included on devices that ship with Android 10. However, it can still be included as an option for continuity purposes on devices upgraded from Pie.
User experience
Android 10 includes a system-level dark mode. Third-party apps can automatically engage a dark mode when it is active.
Apps can also present "settings panels" for specific settings (such as, for example, internet connection and Wi-Fi settings if an app requires internet) via overlay panels, so that the user does not have to be taken outside of the app in order to configure them.
Privacy and security
Several major security and privacy changes are present in Android 10: apps can be restricted by users to only having access to location data when they are actively being used in the foreground.[34] There are also new restrictions on the launching of activities by background apps.[35] For security (due to its use by clickjacking malware) and performance reasons, Android 10 Go Edition forbids use of overlays, except for apps that received the permission before a device was upgraded to Android 10.
Encryption
In February 2019, Google unveiled Adiantum, an encryption cipher designed primarily for use on devices that do not have hardware-accelerated support for the Advanced Encryption Standard (AES), such as low-end devices. Google stated that this cipher was five times faster than AES-256-XTS on an ARM Cortex-A7 CPU. Therefore, device encryption is now mandatory on all Android 10 devices, regardless of specifications, using Adiantum if their CPU is not capable of hardware-accelerated AES. In addition, implementation of "file-based encryption" (first introduced in Android Nougat) is also mandatory for all devices.
On devices shipping with Android 10, security patches for selected system components (such as ANGLE, Conscrypt, media frameworks, networking components, and others) may be serviced via Google Play Store, without requiring a complete system update ("Project Mainline"). In order to license Google mobile services, manufacturers must support these updates for specific modules, while the remainder are marked as "recommended" but optional. Selected modules within this system use the new APEX package format, a variation of APK files designed for housing and servicing low-level system components.
Scoped storage
A major change to storage access permissions known as "Scoped storage" is supported on Android 10, and will become mandatory for all apps beginning with Android 11. Apps are only allowed to access files in external storage that they had created themselves (preferably contained within an app-specific directory), and audio, image, and video files contained within the Music, Pictures, or Videos directories. Any other file may only be accessed via user intervention through the backwards-incompatible Google Storage Access Frameworks.[44][45]
Apps must have a new "read privileged phone state" permission in order to read non-resettable device identifiers, such as IMEI number.
Transport Layer Security
TLS 1.3 support is also enabled by default.
Android 10 supports WPA3 encryption protocol and Enhanced Open, which introduce opportunistic encryption for Wi-Fi. Android 10 adds support for Dual-SIM dual-standby (DSDS), but is initially only available on the Pixel 3a and Pixel 3a XL.
Android 10 Go Edition has performance improvements, with Google stating that apps would launc
RISC-V SupportRecently, Android 10 has been ported to the RISC-V architecture by Chinese-owned T-Head Semiconductor. T-Head Semiconductor managed to get Android 10 running on a triple-core, 64-bit, RISC-V CPU of their own design.
