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The DSpace developer community aims to rely on modern web standards and well tested libraries where possible. As a rule of thumb, users can expect that the DSpace web interfaces work on modern web browsers. DSpace developers routinely test new interface developments on recent versions of Firefox, Safari and Chrome. Because of fast moving, automatic, incremental updates to these browsers, support is no longer targeted at specific versions of these browsers. For Internet Explorer, the The community attempts to support the latest official version and up to 2 older versions of Microsoft's Internet Explorer.
In some cases, modern interfaces are developed alongside older interfaces that no longer receive active maintenance or improvements. This is particularly true for the original themes for the XML User Interface such as "Kubrick", "Classic" and "Reference". These themes still reside in the code base but are not optimized for modern browsers.
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