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Trolltech was founded by Eirik Chambe-Eng and Haavard Nord on 4 March 1994. [6] The duo started writing Qt in 1991; since then, Qt has steadily expanded and improved. In 2002, Trolltech introduced Qtopia which is based on Qt. Qtopia is an application platform for Linux-based devices such as mobile phones, portable media players, and home media.
The latest version of the Qt Framework is Qt 6.8, which was released on 8 October 2024. [16]Also still supported are — for commercial users — 6.5 LTS, released on 3 April 2023, 6.2 LTS, [17] released on 30 September 2021, and 5.15 LTS, released on 26 May 2020 – long-term support (LTS) versions are generally supported for three years with a commercial license, while 5.15 support was ...
In 2000, Qt 2.2 was released under the GPL v2, ending all controversy regarding GPL compatibility. [6] On 28 January 2008 Nokia announced that it would acquire Trolltech. [7] [8] On 14 January 2009 Qt version 4.5 was relicensed, adding LGPL as licensing option. [9] The Qt Project was founded on 21 October 2011.
Platform Details Android: Qt for Android (Android 6.0 or later (API level 23 or higher), i.e. all currently supported 32-bit and 64-bit and popular unsupported versions); for Qt 5 Android Lollipop and later, i.e. all currently supported and popular unsupported versions).
Qt Quick is a free software application framework developed and maintained by the Qt Project within the Qt framework. It provides a way of building custom, highly dynamic graphical user interfaces with fluid transitions and effects, which are becoming more common especially in mobile devices . [ 2 ]
PySide2 was started by Christian Tismer to port PySide from Qt 4 to Qt 5 in 2015. [13] The project was then folded into the Qt Project. [14] It was released in December 2018. [13] PySide6 was released in December 2020. It added support for Qt 6 and removed support for all Python versions older than 3.6. [9] The project started out using Boost.
The first release as KDE Frameworks was with version 5, to account for the fact that the code base was that of KDE Platform version 4 (the only major version of KDE Platform). The transition from KDE Platform to KDE Frameworks began in August 2013, guided by top KDE technical contributors.
PSR-E473 / PSR-EW425 (2021, 820 high-quality voices with Super Articulation Lite and 1 sample voice for sampling, 290 styles,30 built-in songs, 10 user songs, 8 banks with 4 registrations, and groove generator) The EW425 offers 76 keys and features phono jacks for connecting external powered speakers. The E473 has 61 keys.