Upadte k! Yaay.

k/default.nix

@@ -6,11 +6,11 @@ assert stdenv.isLinux || stdenv.isDarwin;
 let
     osdir = if stdenv.isDarwin then "osx-64" else "linux-64";
     sha256 = if stdenv.isDarwin
-             then "e50e84a017a585f9459302ce2670c04385e1f59adcacc3ecdecad79edce6ed07"
-             else "6c4b776e85fe04d8efb178ccc9278bd5ee31d57b11e23886226564cdc8677d06";
+             then "6757b2fcabed467c1ecda3f3b316a797c9ab320cd9d3b57c5de3263b4c27adad"
+             else "54c44f891c05dd4df68be83f756d8317c903a9c67c19937bfb4d201119ba0f2c";
 in stdenv.mkDerivation rec {
     name = "k";
-    version = "2019.03.21-1047_g7948682";
+    version = "2019.07.07-1207_ga0a263c";
     src = fetchurl {
         inherit sha256;
         url = "https://anaconda.org/shaktidb/shakti/${builtins.substring 0 10 version}/download/${osdir}/shakti-${version}.tar.bz2";