Software updates and minor patches are released frequently by default JDownloader updates itself upon initialization.
It also supports Metalink, a format for listing multiple mirrors. Premium users of one-click-host sites can use multiple connections per downloaded file, which increases download speed in most cases. JDownloader supports « waiting time » and CAPTCHA recognition on many file hosting sites, enabling batch downloads without user input. The program can be configured to unpack split RAR archives automatically after all parts have been downloaded. The user-specified download links are split into packages to enable individual pausing and continuing of downloads.
