diff --git a/pkgs/development/libraries/libsoundio/default.nix b/pkgs/development/libraries/libsoundio/default.nix
index 788a5db13cda..18d18941b887 100644
--- a/pkgs/development/libraries/libsoundio/default.nix
+++ b/pkgs/development/libraries/libsoundio/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, cmake, alsaLib, libjack2Unstable, libpulseaudio }:
+{ stdenv, fetchFromGitHub, cmake, alsaLib, libjack2, libpulseaudio }:
 
 stdenv.mkDerivation rec {
   version = "1.1.0";
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
     sha256 = "0mw197l4bci1cjc2z877gxwsvk8r43dr7qiwci2hwl2cjlcnqr2p";
   };
 
-  buildInputs = [ cmake alsaLib libjack2Unstable libpulseaudio ];
+  buildInputs = [ cmake alsaLib libjack2 libpulseaudio ];
 
   meta = with stdenv.lib; {
     description = "Cross platform audio input and output";
diff --git a/pkgs/misc/jackaudio/default.nix b/pkgs/misc/jackaudio/default.nix
index a38c9b764100..62c734859d5b 100644
--- a/pkgs/misc/jackaudio/default.nix
+++ b/pkgs/misc/jackaudio/default.nix
@@ -1,5 +1,5 @@
-{ stdenv, fetchFromGitHub, fetchpatch, pkgconfig, python2Packages, makeWrapper
-, bash, libsamplerate, libsndfile, readline
+{ stdenv, fetchFromGitHub, pkgconfig, python2Packages, makeWrapper
+, bash, libsamplerate, libsndfile, readline, eigen, celt
 
 # Optional Dependencies
 , dbus ? null, libffado ? null, alsaLib ? null
@@ -24,32 +24,24 @@ let
 in
 stdenv.mkDerivation rec {
   name = "${prefix}jack2-${version}";
-  version = "1.9.10";
+  version = "1.9.11-RC1";
 
   src = fetchFromGitHub {
     owner = "jackaudio";
     repo = "jack2";
     rev = "v${version}";
-    sha256 = "1a2213l7x6sgqg2hq3yhnpvvvqyskhsmx8j3z0jgjsqwz9xa3wbr";
+    sha256 = "0i708ar3ll5p8yj0h7ffg84nrn49ap47l2yy75rxyw30cyywhxp4";
   };
 
   nativeBuildInputs = [ pkgconfig python makeWrapper ];
-  buildInputs = [ python libsamplerate libsndfile readline
+  buildInputs = [ python libsamplerate libsndfile readline eigen celt
     optDbus optPythonDBus optLibffado optAlsaLib optLibopus
   ];
 
-  prePatch = ''
+  patchPhase = ''
     substituteInPlace svnversion_regenerate.sh --replace /bin/bash ${bash}/bin/bash
   '';
 
-  patches = [
-    ./jack-gcc5.patch
-    (fetchpatch {
-      url = "https://github.com/jackaudio/jack2/commit/ff1ed2c4524095055140370c1008a2d9cccc5645.patch";
-      sha256 = "0vywakbmlskvs9ginij9ilk39wjyzg7w6cf1qxp11hb0hj69fir5";
-    })
-  ];
-
   configurePhase = ''
     python waf configure --prefix=$out \
       ${optionalString (optDbus != null) "--dbus"} \
diff --git a/pkgs/misc/jackaudio/jack-gcc5.patch b/pkgs/misc/jackaudio/jack-gcc5.patch
deleted file mode 100644
index f18042c6e32c..000000000000
--- a/pkgs/misc/jackaudio/jack-gcc5.patch
+++ /dev/null
@@ -1,26 +0,0 @@
-From d3c8e2d8d78899fba40a3e677ed4dbe388d82269 Mon Sep 17 00:00:00 2001
-From: Adrian Knoth <adi@drcomp.erfurt.thur.de>
-Date: Thu, 18 Sep 2014 18:29:23 +0200
-Subject: [PATCH] Fix FTBFS with clang++
-
-Forwarded from http://bugs.debian.org/757820
----
- common/memops.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/common/memops.c b/common/memops.c
-index 27f6194..2d416b6 100644
---- a/common/memops.c
-+++ b/common/memops.c
-@@ -198,7 +198,7 @@ static inline __m128i float_24_sse(__m128 s)
-  */
- static unsigned int seed = 22222;
- 
--inline unsigned int fast_rand() {
-+static inline unsigned int fast_rand() {
- 	seed = (seed * 96314165) + 907633515;
- 	return seed;
- }
--- 
-2.4.0
-
diff --git a/pkgs/misc/jackaudio/unstable.nix b/pkgs/misc/jackaudio/unstable.nix
deleted file mode 100644
index a2026dacc93a..000000000000
--- a/pkgs/misc/jackaudio/unstable.nix
+++ /dev/null
@@ -1,78 +0,0 @@
-{ stdenv, fetchFromGitHub, pkgconfig, python2Packages, makeWrapper
-, bash, libsamplerate, libsndfile, readline, eigen, celt
-
-# Optional Dependencies
-, dbus ? null, libffado ? null, alsaLib ? null
-, libopus ? null
-
-# Extra options
-, prefix ? ""
-}:
-
-with stdenv.lib;
-let
-  inherit (python2Packages) python dbus-python;
-  shouldUsePkg = pkg: if pkg != null && stdenv.lib.any (x: x == stdenv.system) pkg.meta.platforms then pkg else null;
-
-  libOnly = prefix == "lib";
-
-  optDbus = shouldUsePkg dbus;
-  optPythonDBus = if libOnly then null else shouldUsePkg dbus-python;
-  optLibffado = if libOnly then null else shouldUsePkg libffado;
-  optAlsaLib = if libOnly then null else shouldUsePkg alsaLib;
-  optLibopus = shouldUsePkg libopus;
-in
-stdenv.mkDerivation rec {
-  name = "${prefix}jack2-unstable-${version}";
-  version = "2017-02-23";
-
-  src = fetchFromGitHub {
-    owner = "jackaudio";
-    repo = "jack2";
-    rev = "4cf826c82c8f865c281833f92f8182d457277b3a";
-    sha256 = "100pkc324m57ci3fb99d3api6wh6g58lya6ssly9hxyhdsa3i7bk";
-  };
-
-  nativeBuildInputs = [ pkgconfig python makeWrapper ];
-  buildInputs = [
-    python
-
-    libsamplerate libsndfile readline eigen celt
-
-    optDbus optPythonDBus optLibffado optAlsaLib optLibopus
-  ];
-
-  patchPhase = ''
-    substituteInPlace svnversion_regenerate.sh --replace /bin/bash ${bash}/bin/bash
-  '';
-
-  configurePhase = ''
-    python waf configure --prefix=$out \
-      ${optionalString (optDbus != null) "--dbus"} \
-      --classic \
-      ${optionalString (optLibffado != null) "--firewire"} \
-      ${optionalString (optAlsaLib != null) "--alsa"} \
-      --autostart=${if (optDbus != null) then "dbus" else "classic"} \
-  '';
-
-  buildPhase = ''
-    python waf build
-  '';
-
-  installPhase = ''
-    python waf install
-  '' + (if libOnly then ''
-    rm -rf $out/{bin,share}
-    rm -rf $out/lib/{jack,libjacknet*,libjackserver*}
-  '' else ''
-    wrapProgram $out/bin/jack_control --set PYTHONPATH $PYTHONPATH
-  '');
-
-  meta = {
-    description = "JACK audio connection kit, version 2 with jackdbus";
-    homepage = "http://jackaudio.org";
-    license = licenses.gpl2Plus;
-    platforms = platforms.unix;
-    maintainers = with maintainers; [ goibhniu wkennington ];
-  };
-}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index ad5281f6bf59..c9858b2dbca6 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -18380,7 +18380,6 @@ with pkgs;
     libopus = libopus.override { withCustomModes = true; };
   };
   libjack2 = jack2Full.override { prefix = "lib"; };
-  libjack2Unstable = callPackage ../misc/jackaudio/unstable.nix { };
 
   keynav = callPackage ../tools/X11/keynav { };