On Nov 30, 2018, at 5:49 AM, pd-list-request@lists.iem.at wrote:

Date: Thu, 29 Nov 2018 23:29:41 +0100
From: Simon Iten <itensimon@gmail.com>
To: Ingo <ingo@miamiwave.com>
Cc: Jaime Oliver <jaime.oliver2@gmail.com>, Pd-List
<pd-list@lists.iem.at>
Subject: Re: [PD] Recognizing USB MIDI interfaces on Pd 0.48.1 (Debian
9.5)
Message-ID: <C3B84F2E-B351-44B8-9208-D1F49F5B12FF@gmail.com>
Content-Type: text/plain; charset="utf-8"

on osx at least you had to restart pd for new midi devices to work since “ages”… (not talking about extended)