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Android Eclair
Version of the Android operating system
Android 2.1 running on a Nexus One
DeveloperGoogle
Initial releaseOctober 27, 2009; 16 years ago (2009-10-27) [1]
Final release2.1_r2.1p2 (EPF21B)[2][3] / January 12, 2010; 16 years ago (2010-01-12)
Kernel typeMonolithic (Linux)
Preceded byAndroid Donut (1.6)
Succeeded byAndroid Froyo (2.2)
Official websitedeveloper.android.com/about/versions/android-2.0-highlights Edit this at Wikidata
Support status
  • Unsupported
  • Android Market support dropped since June 30, 2017
  • Google Account support dropped on September 27, 2021

Android Eclair is the codename of the fifth version (and second major release) of the Android mobile operating system. Eclair spans the versions 2.0.x and 2.1. Unveiled on October 26, 2009, Android Eclair builds upon the significant changes made in Android 1.6 "Donut".[4] The first phone with Android Eclair was the Motorola Droid. Google ceased support for the Android Market on Android 2.1 and older on June 30, 2017.[5] Meanwhile, it was the first Android operating system to have ads.

Features

[edit]
See also: Android version history § Android 2.0 Eclair

User experience

[edit]

The default home screen of Eclair displays a persistent Google Search bar across the top of the screen. The camera app was also redesigned with numerous new camera features, including flash support, digital zoom, scene mode, white balance, color effect, and macro focus. The photo gallery app also contains basic photo editing tools. This version also added live wallpapers, allowing the home-screen background images to animate. Speech-to-text was first introduced, replacing the comma key.[6]

Platform

[edit]

Android Eclair inherits platform additions from the Donut release, including the ability to search all saved SMS and MMS messages, improved Google Maps 3.1.2, and Exchange support for the Email app.[7][8] The operating system also provides improved typing speed on virtual keyboard, along with new accessibility, calendar, and virtual private network APIs. For internet browsing, Android Eclair also adds support for HTML5, refreshed browser UI with bookmark thumbnails, and double-tap zoom.[9]

See also

[edit]

References

[edit]
[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

Android Eclair

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from Grokipedia
Android Eclair is the codename for a major release of the Android mobile operating system, encompassing versions 2.0 (API level 5), 2.0.1 (API level 6), and 2.1 (API level 7), developed by Google and announced in October 2009, with the first devices shipping in November 2009.[1] This version marked a significant evolution from Android 1.6 "Donut," introducing enhanced user interface elements, expanded hardware support, and innovative features like turn-by-turn Google Maps Navigation with voice guidance and 3D views, which transformed mobile navigation by offering free, real-time directions on compatible high-resolution devices.[2][3] The initial rollout began with the Motorola DROID smartphone on November 6, 2009, via Verizon Wireless in the United States, positioning Eclair as the first Android version to achieve widespread mainstream adoption through aggressive marketing and hardware integration.[3] Android 2.0 Eclair, based on Linux kernel 2.6.29, brought developer-focused improvements such as new APIs for contact synchronization, account management, Bluetooth peer-to-peer connectivity, and Quick Contact badges for streamlined communication access.[1] It also supported additional screen resolutions like WVGA (800x480) and FWVGA (854x480), enabling richer multimedia experiences, alongside enhancements to the web browser for better HTML rendering and messaging capabilities for archiving and searching SMS/MMS.[1][4] The subsequent Android 2.1 update, released in January 2010 as Eclair MR1 with API level 7, refined these foundations by adding live wallpapers for dynamic home screen backgrounds, full-screen app drawers, improved virtual keyboards, and expanded web support including HTML5 video, geolocation, and storage in WebViews.[5][6] It also introduced speech-to-text input across all text fields, facilitating voice composition for emails and messages, and debuted on Google's Nexus One device on January 5, 2010.[2][6] These additions emphasized personalization and accessibility, solidifying Eclair's role in advancing Android's competitiveness against iOS during its early growth phase. Overall, Android Eclair's innovations in navigation, input methods, and developer tools helped propel the platform to over 50% market share among Android devices by mid-2010, while introducing security enhancements like improved lock screen options that became foundational for future versions.[7][8] Support for the Android Market on Eclair devices ended on June 30, 2017, reflecting its status as legacy software amid ongoing OS evolution.[9]

Development and release

Announcement and preview

Android Eclair, the codename for the major update to the Android operating system corresponding to versions 2.0 and 2.1, derives from the French word for a light, filled pastry, upholding the dessert-themed naming convention that originated with Android 1.5 Cupcake in 2009.[2] This tradition reflected Google's playful approach to internal versioning while building on the platform's rapid evolution. Development of Eclair proceeded directly from Android 1.6 Donut, incorporating refinements to core architecture for enhanced performance and usability.[10] The update was unveiled through an official announcement on October 27, 2009, when Google released the Android 2.0 SDK, enabling developers to begin integrating the new platform capabilities.[1] Pre-release previews had built anticipation earlier that month, including a symbolic giant éclair pastry placed on Google's Mountain View campus lawn on October 14 as a teaser for the impending version.[11] Demonstrations at developer events showcased early mockups of the refreshed user interface and highlighted advancements like improved Google Maps navigation, signaling a focus on seamless integration of location services.[12] Eclair's development emphasized key goals such as bolstering multitasking efficiency, refining navigation tools, and deepening hardware integration to position Android as a stronger contender against Apple's iPhone 3GS, which had launched earlier in June 2009 with notable speed and multimedia enhancements.[13] The reference implementation targeted the Motorola Droid smartphone, internally codenamed Sholes, which served as the flagship device to demonstrate these improvements upon its market introduction. These efforts aimed to elevate Android's appeal in a competitive landscape dominated by iOS, prioritizing developer accessibility and user-centric refinements over incremental tweaks.[14]

Version history

Android Eclair encompasses versions 2.0, 2.0.1, and 2.1 of the Android operating system. The initial release, Android 2.0, was made available on October 27, 2009, and is based on Linux kernel 2.6.29 with API level 5.[1][15] A minor update, Android 2.0.1, followed in December 2009, primarily addressing bug fixes and behavioral changes in the framework, including issues within the media framework.[16] The final major update in the Eclair series, Android 2.1 (build 2.1_r2.1p2), was released on January 12, 2010, introducing refinements to search functionality and calendar synchronization.[17] Key enhancements in 2.1 over previous versions included improved support for Exchange ActiveSync and greater Bluetooth stability.[18][19] The Eclair development span lasted from October 2009 to January 2010, with no additional updates beyond version 2.1. Android Eclair succeeded version 1.6 (Donut) and was later followed by version 2.2 (Froyo).[15]

New features

User interface improvements

Android Eclair introduced significant enhancements to the home screen, expanding it to support up to five customizable pages, an increase from the three available in previous versions, with smoother scrolling and improved widget integration for greater personalization. This update built briefly on the basic widget system from Android Donut, allowing users to arrange icons, shortcuts, and widgets more fluidly across the extended layout, complete with visual page indicators at the bottom for easier navigation. Live wallpapers were also added in Android 2.1, enabling animated and interactive backgrounds that responded to touch and time, enhancing the overall visual dynamism of the interface.[20][21] A persistent Google Search bar was integrated directly into the home screen, providing quick access to both voice and text-based searches across apps, contacts, web content, and device history without needing to launch a separate application. This feature streamlined daily interactions by centralizing search functionality, with a dedicated microphone icon for voice input and a Google logo button to expand search options, reducing the steps required for information retrieval.[20][22] The contacts application underwent a redesign to support account-based organization, automatically linking entries from multiple sources like Google accounts, social networks, and device storage into unified profiles. This facilitated easier merging of duplicate contacts, minimizing redundancy and improving accessibility through the new Quick Contact feature, which displayed thumbnail overlays with shortcuts to related apps such as email or messaging upon long-pressing a contact.[20][1] Input methods saw notable upgrades with the on-screen keyboard gaining multi-touch support, allowing simultaneous key presses for faster typing, alongside enhanced predictive text that offered more accurate word suggestions to reduce errors. Voice recognition was extended to all text fields via a dedicated microphone key in Android 2.1, enabling speech-to-text dictation directly from the keyboard for hands-free composition.[23][6] The gallery application was revamped with a 3D flip animation for browsing photos, featuring smooth swipe gestures to navigate between images and dynamic effects like photos shuffling into piles or flying into view, developed in collaboration with Cooliris for a more immersive experience. Additional on-screen buttons for actions like sharing, deleting, or setting images as wallpapers were moved to the main view, simplifying common tasks without delving into menus.[20][22]

Application and multimedia enhancements

A key enhancement for input was the addition of speech-to-text functionality in Android 2.1, integrated into the virtual keyboard for messaging, search, and other text fields. Powered by Google's voice recognition engine, this feature allows users to dictate text in real-time, converting spoken words to editable input with support for free-form dictation in English and web search queries in multiple languages including Mandarin Chinese and Japanese. It integrates seamlessly with the system's search bar, enabling voice-activated queries across apps, and provides developers with the SpeechRecognizer API to embed similar capabilities in custom applications.[24] The camera application received a significant redesign in Eclair, featuring an intuitive on-screen interface for capturing photos and videos with improved controls. Users gained access to digital zoom for closer shots, flash support for low-light conditions, various scene modes to optimize settings automatically (such as portrait or landscape), and basic post-capture editing tools like cropping and rotating images directly within the app. These updates, supported by the full Camera API including parameters for zoom ratios, flash modes, and scene detection, enhanced multimedia creation on devices with at least 2-megapixel sensors and auto-focus capabilities.[25] Google Maps version 3.1.2, bundled with Eclair, brought advanced navigation tools to improve location-based multimedia experiences. It introduced voice-guided turn-by-turn directions, providing spoken instructions for routes, along with real-time live traffic updates to suggest alternative paths and avoid delays. This free navigation system marked a shift toward hands-free driving assistance, integrating GPS data with audio cues for safer, more efficient travel.[25] The email client was upgraded to handle multiple accounts simultaneously, supporting synchronization for Gmail, Microsoft Exchange ActiveSync, POP3, and IMAP protocols, which allowed users to manage personal and work inboxes in one app. A new conversation threading view groups related messages by subject, making it easier to follow email chains without scrolling through individual replies, while push notifications ensured timely updates across accounts. These changes streamlined content consumption for communication-heavy users.[25]

Platform and developer updates

Android Eclair used the Linux kernel version 2.6.29, the same as in Donut, providing improved stability, better power management, and support for new hardware features such as WiMAX and advanced filesystem options like Btrfs.[26][27] A key platform update was the addition of Bluetooth 2.1 support with Enhanced Data Rate (EDR), enabling faster data transfer rates up to 3 Mbps and improved audio profiles including the Object Push Profile (OPP) and Phone Book Access Profile (PBAP) for seamless device pairing and contact synchronization.[1] Developers gained new APIs in the android.bluetooth package for peer-to-peer connectivity, facilitating applications like multiplayer gaming and file sharing without relying on central servers.[28] The browser engine in Eclair received significant enhancements with full HTML5 compatibility, including support for the <video> tag in fullscreen mode, Database API for client-side storage, Application Cache for offline web apps, and Geolocation API for location-aware services, all improving web application performance and compatibility on mobile devices.[29] These changes allowed developers to build more dynamic web content without native app dependencies. Eclair enhanced copy-paste functionality across applications through an improved clipboard manager, allowing seamless transfer of text and data between apps via the android.text.ClipboardManager API, which supported richer clip types starting from API level 5.[30] At the platform level, SMS and MMS handling was upgraded with built-in search capabilities for archived messages and automatic deletion of the oldest entries in threaded conversations to manage storage limits efficiently.[29][31] This enabled developers to integrate advanced messaging features, such as quick retrieval and organized views, into custom applications.

Devices and adoption

Initial devices

The Motorola Droid, released on November 6, 2009, in the United States exclusively through Verizon Wireless, marked the debut of Android 2.0 Eclair on a commercial smartphone.[32] This device featured a 3.7-inch capacitive touchscreen with 854x480 WVGA resolution, a 5-megapixel rear camera with dual-LED flash and autofocus, 256 MB of RAM, and a distinctive slide-out QWERTY keyboard, positioning it as a premium alternative to the iPhone.[33] Marketed aggressively as "the Google phone" through a high-profile campaign involving Google, Motorola, and Verizon, it emphasized seamless integration of Google's services and hardware optimized for Eclair's capabilities.[34] The Google Nexus One, released on January 5, 2010, debuted Android 2.1 Eclair as an unlocked device sold directly by Google, featuring a 3.7-inch AMOLED display at 800x480 resolution, a 5-megapixel camera with autofocus, 512 MB RAM, and 4 GB internal storage. It played a key role in expanding Eclair's adoption beyond carrier exclusivity. Shortly following the Droid's launch, the HTC Droid Eris arrived in November 2009 as a more compact and affordable option for Verizon customers, targeting the entry-level segment of the market.[35] Equipped with a 3.2-inch capacitive display at 480x320 resolution, a 5-megapixel rear camera, 256 MB of RAM, and 512 MB of internal storage expandable via microSD, it launched with Android 1.5 Cupcake but received an update to Android 2.1 Eclair with HTC's Sense user interface overlay in early 2010.[36] Eclair's rollout extended internationally in late 2009 and early 2010 through devices like the Acer Liquid, released in December 2009 with Android 1.6 Donut and updated to 2.1, and the Sony Ericsson Xperia X10, launched in March 2010 with Android 1.6 and updated to 2.1 later that year, bringing the OS to diverse global carriers and markets.[37][38] These early adopters typically met hardware thresholds including a minimum of 192 MB RAM for smooth multitasking, support for WVGA screen resolutions to enable richer visuals, and accelerometer integration for enhanced user interface interactions such as live wallpapers and orientation-based features.[39] The initial U.S. exclusivity to Verizon underscored Eclair's strategic focus on deepening carrier partnerships to accelerate Android's adoption.[40]

Update distribution

Android Eclair was distributed to existing devices running prior versions, such as Android 1.6 Donut, primarily through over-the-air (OTA) updates starting in early 2010 for select compatible hardware. The HTC Magic, a Donut device with 192 MB RAM, received official OTA updates to Android 2.1 Eclair in various regions, with carriers like Rogers Wireless in Canada beginning the rollout in September 2010 after Google's final approval.[41][42] Similarly, the HTC Hero saw OTA updates across Europe in June 2010, delivered in two phases to address bugs and install the full Eclair build.[43] The T-Mobile G1 (HTC Dream), however, did not receive an official OTA update to Eclair despite initial rumors in December 2009, as T-Mobile halted support at Donut due to hardware constraints.[44][45] Rollouts were heavily influenced by carrier priorities and testing, leading to significant delays. Verizon focused on new launches like the Motorola Droid, which shipped with Eclair in November 2009, delaying updates for older compatible devices.[46] T-Mobile and AT&T began providing OTA updates to eligible hardware, such as the Samsung Moment on Sprint, by May 2010, though full deployment varied by region and model.[47][46] Device eligibility for Eclair updates generally required at least 192 MB of RAM and compatible radio firmware to handle the enhanced features and stability improvements, though some devices with 192 MB like the HTC Dream were excluded due to other limitations. Many Cupcake-era phones, including some with lower RAM or outdated components, were excluded due to these hardware limitations, exacerbating early Android fragmentation.[48][49] OTA update packages for Eclair typically ranged from 80 to 100 MB, encompassing a complete OS rebuild to ensure reliability on upgraded hardware.[47] Fragmentation posed major challenges, resulting in incomplete rollouts where not all eligible users received updates promptly; some carriers and regions experienced delays extending into 2011 for subsequent versions, highlighting the decentralized nature of Android's ecosystem at the time.[46][49]

Legacy

Market impact

Android Eclair played a pivotal role in elevating Android's global market position, helping the platform achieve approximately 4% of the worldwide smartphone operating system market share by the end of 2009, a significant increase from under 2% earlier in the year during the Donut era.[50][51] This growth was largely propelled by the success of the Motorola Droid smartphone on Verizon, which challenged Apple's iPhone dominance in the U.S. and accelerated Android's momentum as a viable alternative.[52] The inclusion of native Microsoft Exchange ActiveSync support in Eclair enhanced Android's appeal to enterprise users, facilitating seamless integration with corporate email systems and positioning the OS as more suitable for business environments compared to prior versions.[31] This feature contributed to broader adoption in professional settings, where secure email access was a key requirement. Additionally, Eclair's refinements to developer tools, including improved debugging and testing capabilities, spurred growth in the Android Market, which surpassed 20,000 applications by late 2009 and exceeded 10,000 active apps available in early 2010.[53] Eclair provided competitive differentiators such as integrated voice-guided navigation and live wallpapers, features absent in iOS 3.1, which helped establish Android as a more dynamic multimedia platform and attracted users seeking enhanced personalization and navigation options.[54] Regionally, Android saw robust uptake in the U.S. thanks to aggressive carrier promotion by Verizon, achieving nearly 10% market share by late 2009, while progress in Europe lagged at around 5% due to carrier-specific customizations and fragmentation that delayed device rollouts and updates.[55][56]

End of support

Support for Android Eclair, specifically version 2.1 and earlier, has long been discontinued by Google, marking the end of official services and updates for this 2009-2010 release. On June 30, 2017, Google ceased support for the Android Market app, preventing devices running Android 2.1 Eclair or older from downloading or accessing apps through the legacy storefront, as these versions represented less than 0.1% of the active Android ecosystem at the time.[57][58] Further eroding functionality, Google terminated sign-in capabilities for Google Account services on September 27, 2021, for all devices running Android 2.3.7 or lower, which includes Eclair. This cutoff disabled core features such as account synchronization, access to the Google Play Store, Gmail, YouTube, and Maps, effectively rendering many essential functions inoperable on affected hardware.[59][60] Security maintenance for Eclair ended shortly after its release, with no official patches provided since 2010-2011, leaving the platform reliant on an outdated Linux kernel version 2.6.29 that lacks modern defenses. This exposure has made Eclair devices highly vulnerable to known exploits, including early kernel privilege escalations like the Exploid vulnerability affecting versions up to 2.1, as well as precursors to later multimedia flaws such as those in the Stagefright family, due to unpatched media handling components.[61][62] Over-the-air (OTA) updates for Eclair devices concluded around 2012 for the few remaining supported models, as manufacturers shifted focus to newer versions like Gingerbread and beyond. Unofficial community efforts, such as CyanogenMod (version 5 based on Eclair), extended limited support through custom ROMs until mid-2010, providing bug fixes and minor enhancements for select hardware, though these carried risks of instability and lacked official security vetting.[63] The prolonged unsupported status of Eclair and similar early Android versions impacted billions of legacy devices worldwide, contributing to widespread security risks and app incompatibility, which prompted Google to advocate for accelerated update cycles in subsequent releases, including extended support periods of up to seven years for modern Pixel devices starting in 2023.[58][64]

References

  1. Announcing Android 2.0 support in the SDK!
  2. Celebrating a Sweet Decade of Android - The Keyword
  3. Android versions: A living history from 1.0 to 16 - Computerworld
  4. Google Android Eclair launched to developers - The Telegraph
  5. Android 2.1 (Eclair MR1) SDK is out - ZDNET
  6. Google's Android 2.1: How It'll Change Your Phone | PCWorld
  7. Half of All Android Phones Now Sport Android 2.1 - WIRED
  8. https://www.efani.com/blog/android-2-0-security-review
  9. Google is officially killing off Android Market support for devices still ...
  10. SDK Platform release notes | Android Studio
  11. Google Unwraps Android's Giant Eclair - TechCrunch
  12. Android 2.0 Eclair Officially Launches [Video] - SlashGear
  13. With Motorola Droid, Verizon puts doubts about Google Android ...
  14. Google releases Android 2.0 SDK | IT Pro - ITPro
  15. Codenames, tags, and build numbers - Android Open Source Project
  16. Android SDK Updates - Android Developers Blog
  17. Android 2.1 SDK - Android Developers Blog
  18. Cellular South HTC Hero Finally Gets Updated To Android 2.1
  19. Eris 2.1 Feature Enhancments - Android Forums - Early Bird Club
  20. The (updated) history of Android - Ars Technica
  21. Live wallpapers - Android Developers Blog
  22. Our new approach to buying a mobile phone - Official Google Blog
  23. New Social APIs in Android ICS - Android Developers Blog
  24. Making Sense of Multitouch - Android Developers Blog
  25. Android 2.1 Compatibility Definition
  26. Speech Input API for Android - Android Developers Blog
  27. Android 2.0 Eclair (API level 5)
  28. Linux_2_6_29 - Linux Kernel Newbies
  29. What's new in Android 2.0? Part 2: Developer features - ZDNET
  30. Android 2.0 Platform Highlights | Android Developers
  31. Accessibility Features in Android 2.0 Platform | DW - Disabled World
  32. Cross-version (starting api 7 (eclair)) copy paste in Android?
  33. A Taste of Android's Freshly Baked Eclair - LinuxInsider
  34. Motorola Droid Launch Guide - IGN
  35. Motorola DROID Full Specifications - PhoneArena
  36. Google's Home Page Promotes Motorola / Verizon Droid Phone
  37. HTC DROID ERIS Full Specifications - PhoneArena
  38. HTC DROID ERIS - Full phone specifications - GSMArena.com
  39. Acer Brings Android 2.1 To Liquid E Smartphone | HotHardware
  40. Sony Ericsson Xperia X10 - Full phone specifications - GSMArena.com
  41. Android history: The evolution of the biggest mobile OS in the world
  42. Android 2.0 (Eclair) FAQ - ZDNET
  43. Android 2.1 update for Rogers HTC Magic finished, pending final ...
  44. The Wait is Over: 2.1 Android Update for Roger's HTC Magic Arrives
  45. BREAKING: Android 2.1 Eclair OTA Update Now Being Rolled Out ...
  46. Android 2.0 officially coming to T-Mobile G1? - Engadget
  47. T-Mobile G1 owners left in Android 2.0 limbo - InfoWorld
  48. Dear Android: Here's your last chance - CBS News
  49. Samsung Moment Android Eclair 2.1 Update Goes Live Early ...
  50. HTC Magic gets Sense UI, Android 2.0 Eclair phones in the works
  51. Android fragmentation: really not a big deal | ajfisher
  52. iPhone and Android biggest winners in mobile market in 2009
  53. Big Cellphone Makers Shifting to Android System
  54. Why Verizon and the Droid were pivotal for Android | The Verge
  55. 15 years of the Android Market: The app that changed the game
  56. Apple iOS 3 & 4 VS Android 2.1 "Eclair" & 2.2 "Froyo": Fight!
  57. Euro-folk not big on the Android - TechCrunch
  58. Report: Android struggles in Western Europe - Mobile World Live
  59. Ending support for Android Market on Android 2.1 and lower
  60. Google to end Android Market support for Android 2.1 Eclair and ...
  61. Sign-in on Android devices running Android 2.3.7 or lower will not ...
  62. Google soon won't let you sign in on very old Android devices
  63. Android OS - endoflife.date
  64. Scan Your Device for Security Vulnerabilities with X-Ray
  65. Google pushes for 7 years of Android updates on more phones
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