diff --git a/pkgs/development/libraries/mesa/default.nix b/pkgs/development/libraries/mesa/default.nix
index dc82af49030..578763478f5 100644
--- a/pkgs/development/libraries/mesa/default.nix
+++ b/pkgs/development/libraries/mesa/default.nix
@@ -64,12 +64,8 @@ stdenv.mkDerivation {
       # TODO: Remove when https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6121 is merged and available
       (fetchpatch {
         name = "nine_debug-Make-tid-more-type-correct";
-        # Patch adjusted for version `20.1`, before the big mesa dirs change
-        # `gallium: rename 'state tracker' to 'frontend'`.
-        # Patch for versions after that change is at
-        #     https://gitlab.freedesktop.org/mesa/mesa/commit/aebbf819df6d1e3b4745ef16d0e833300ad67044.patch
-        url = "https://gitlab.freedesktop.org/nh2/mesa/commit/3385c49684375f1153a52ed7ccda3f5135268a41.patch";
-        sha256 = "1ci694sqjll44c9g2md4krhk6qlvq51r7ad5rnnfdnf3l8ys0i50";
+        url = "https://gitlab.freedesktop.org/mesa/mesa/commit/aebbf819df6d1e.patch";
+        sha256 = "17248hyzg43d73c86p077m4lv1pkncaycr3l27hwv9k4ija9zl8q";
       })
     ]
     # do not prefix user provided dri-drivers-path
@@ -101,6 +97,10 @@ stdenv.mkDerivation {
       'DATADIR "/drirc.d"' '"${placeholder "out"}/drirc.d"'
     substituteInPlace src/util/meson.build --replace \
       "get_option('datadir')" "'${placeholder "out"}'"
+  '' + lib.optionalString (stdenv.hostPlatform != stdenv.buildPlatform) ''
+    substituteInPlace meson.build --replace \
+      "find_program('nm')" \
+      "find_program('${stdenv.cc.targetPrefix}nm')"
   '';
 
   outputs = [ "out" "dev" "drivers" ] ++ lib.optional enableOSMesa "osmesa";
diff --git a/pkgs/development/libraries/rnnoise/default.nix b/pkgs/development/libraries/rnnoise/default.nix
index 938f64d06ef..4dec2f3cfcb 100644
--- a/pkgs/development/libraries/rnnoise/default.nix
+++ b/pkgs/development/libraries/rnnoise/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation (rec {
   pname = "rnnoise";
-  version = "2019-04-24";
+  version = "2020-06-28";
 
   src = fetchFromGitHub {
     owner = "xiph";
     repo = "rnnoise";
-    rev = "9acc1e5a633e0961a5895a73204df24744f199b6";
-    sha256 = "17xip4z0skpzas7wrdyi87j46mbz9jncpj554m8654bqpkxis0pr";
+    rev = "90ec41ef659fd82cfec2103e9bb7fc235e9ea66c";
+    sha256 = "02z6qzjajhlpsb80lwl7cqqga9hm638psnqnppjkw84w4lrp15ny";
   };
 
   nativeBuildInputs = [ autoreconfHook ];
diff --git a/pkgs/os-specific/linux/nvidia-x11/default.nix b/pkgs/os-specific/linux/nvidia-x11/default.nix
index b16dd3997f6..e3407f8fe5f 100644
--- a/pkgs/os-specific/linux/nvidia-x11/default.nix
+++ b/pkgs/os-specific/linux/nvidia-x11/default.nix
@@ -33,14 +33,15 @@ rec {
   beta = stable;
 
   # Vulkan developer beta driver
-  vulkan_beta = generic {
-    version = "450.56.11";
-    persistencedVersion = "450.57";
-    settingsVersion = "450.57";
-    sha256_64bit = "1k64h8sp4rf6kc7liypznjgkmxi67njy1s8xy2r341fhl62pl010";
-    settingsSha256 = "1clbj9a3kv3j8jg35c197gd7b3f9f9f4h9ll5hlax95hdg12lgan";
-    persistencedSha256 = "17747z1fsbiznfsmahxmz8kmhwwcjanpfih60v5mwzk63gy4i3d5";
-    url = "https://developer.nvidia.com/vulkan-beta-4505611-linux";
+  # See here for more information: https://developer.nvidia.com/vulkan-driver
+  vulkan_beta = generic rec {
+    version = "455.46.02";
+    persistencedVersion = "455.45.01";
+    settingsVersion = "455.45.01";
+    sha256_64bit = "05y4scg62mrhjnj2c8689m5hdyzqnx5p8vqvdqvv76zy970723l7";
+    settingsSha256 = "09v86y2c8xas9ql0bqr7vrjxx3if6javccwjzyly11dzffm02h7g";
+    persistencedSha256 = "13s4b73il0lq2hs81q03176n16mng737bfsp3bxnxgnrv3whrayz";
+    url = "https://developer.nvidia.com/vulkan-beta-${lib.concatStrings (lib.splitString "." version)}-linux";
   };
 
   # Last one supporting x86
diff --git a/pkgs/tools/networking/dnsperf/default.nix b/pkgs/tools/networking/dnsperf/default.nix
index a3d819e8dcf..68107f19328 100644
--- a/pkgs/tools/networking/dnsperf/default.nix
+++ b/pkgs/tools/networking/dnsperf/default.nix
@@ -1,25 +1,29 @@
 { stdenv, fetchurl, fetchFromGitHub, autoreconfHook, pkgconfig
-, bind, zlib, openssl, libcap
+, openssl, ldns
 }:
 
 stdenv.mkDerivation rec {
   pname = "dnsperf";
-  version = "2.3.4";
+  version = "2.4.0";
 
   # The same as the initial commit of the new GitHub repo (only readme changed).
   src = fetchFromGitHub {
     owner = "DNS-OARC";
     repo = "dnsperf";
     rev = "v${version}";
-    sha256 = "1lyci2vdl6g0s5pqs7dkq7pxdahcpkzh614wmy5fwi2f3334y0d1";
+    sha256 = "0q7zmzhhx71v41wf6rhyvpil43ch4a9sx21x47wgcg362lca3cbz";
   };
 
   outputs = [ "out" "man" "doc" ];
 
   nativeBuildInputs = [ autoreconfHook pkgconfig ];
 
-  buildInputs = [ bind zlib openssl ]
-    ++ stdenv.lib.optionals stdenv.isLinux [ libcap.lib ];
+  buildInputs = [
+    openssl
+    ldns # optional for DDNS (but cheap anyway)
+  ];
+
+  doCheck = true;
 
   # For now, keep including the old PDFs as well.
   # https://github.com/DNS-OARC/dnsperf/issues/27
diff --git a/pkgs/tools/typesetting/tectonic/default.nix b/pkgs/tools/typesetting/tectonic/default.nix
index 965624a5098..fc4a971f230 100644
--- a/pkgs/tools/typesetting/tectonic/default.nix
+++ b/pkgs/tools/typesetting/tectonic/default.nix
@@ -3,16 +3,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "tectonic";
-  version = "0.3.0";
+  version = "0.3.3";
 
   src = fetchFromGitHub {
     owner = "tectonic-typesetting";
     repo = "tectonic";
     rev = "tectonic@${version}";
-    sha256 = "yJzfymA4elyyeVR8FzTJe8wgs+vm3RWwcOh7IlmBYPE=";
+    sha256 = "1ncczcchyphprkrb8spya400gi212a6akx18fm3j4xdhmg9caj3f";
   };
 
-  cargoSha256 = "7zqr54H6GemiM/xuHOH6+s669IG2orj1neoqAH+wnV4=";
+  cargoSha256 = "11xvq0l9xrppcplkshd5wxv90s97x4iavhzbdk9px992zl0m6ar6";
 
   nativeBuildInputs = [ pkgconfig ];
 
@@ -29,6 +29,7 @@ rustPlatform.buildRustPackage rec {
   meta = with stdenv.lib; {
     description = "Modernized, complete, self-contained TeX/LaTeX engine, powered by XeTeX and TeXLive";
     homepage = "https://tectonic-typesetting.github.io/";
+    changelog = "https://github.com/tectonic-typesetting/tectonic/blob/tectonic@${version}/CHANGELOG.md";
     license = with licenses; [ mit ];
     maintainers = [ maintainers.lluchs maintainers.doronbehar ];
   };