The deadline for submitting refereed track proposals for the 2017 Linux Plumbers Conference has been extended until 13 May at 11:59PM Pacific Time.  The refereed track will have 50-minute presentations on a specific aspect of Linux “plumbing” (e.g. core libraries, media creation/playback, display managers, init systems, kernel APIs/ABIs, etc.) that are chosen by the LPC committee to be given during all three days of the conference.