libusb 1.0.21-rc1 has been released.

diff --git a/README b/README
index 64f43f83ce27dfe4d04e6da5bb2bb5ae9d827e15..14b9211307fc447c78d7ea7fe51ad3452bdf82cb 100644 (file)
--- a/README
+++ b/README
@@ -36,7 +36,9 @@ Nageru is in beta stage. It currently needs:
  - Two or more Blackmagic USB3 or PCI cards, either HDMI or SDI.
    The PCI cards need Blackmagic's own drivers installed. The USB3 cards
    are driven through the “bmusb” driver embedded in bmusb/, using libusb-1.0.
-   You want a recent kernel (4.6.0 or newer) and libusb-1.0; see below.
+   If you want zerocopy USB, you need libusb 1.0.21-rc1 or newer,
+   as well as a recent kernel (4.6.0 or newer). Zerocopy USB helps not only
+   for performance, but also for stability.
 
  - Movit, my GPU-based video filter library (https://movit.sesse.net).
    You will need at least version 1.3.1.
@@ -73,9 +75,7 @@ with:
 
 Exceptions as of July 2016:
 
-  - You need libusb 1.0.21 or newer (not yet released; you will need to
-    use git) if you want zerocopy USB. Zerocopy USB helps not only for
-    performance, but also for stability.
+  - libusb 1.0.21-rc1 is not yet in Debian.
 
 
 The patches/ directory contains a patch that helps zita-resampler performance.