diff --git a/Makefile b/Makefile
index 2ea49ce..3240ee8 100644
--- a/Makefile
+++ b/Makefile
@@ -3,4 +3,4 @@ default:
 	./autoTest.pl
 
 clean: 
-	rm -f *.txt primesc primescpp primesaltc primes.class primespas primes*.exe primes.o primesobjc primes.ali primesada primesfor primese primes.h primes1.c primes1.o primes.id primes.make primescbl link.res ppas.sh primes.beam primesocaml primesasm primes.cmi primes.cmx luac.out primeshs primes_clisp.fas primes.lib Main.hi primes_clisp.lib primes_clisp.o primes.hi primescsieve gst.im primesalt2c primesalt3c primesgo primesrs
+	rm -f *.txt primesgcc primesclang primescpp primesaltc primes.class primespas primes*.exe primes.o primesobjc primes.ali primesada primesfor primese primes.h primes1.c primes1.o primes.id primes.make primescbl link.res ppas.sh primes.beam primesocaml primesasm primes.cmi primes.cmx luac.out primeshs primes_clisp.fas primes.lib Main.hi primes_clisp.lib primes_clisp.o primes.hi primescsieve gst.im primesalt2c primesalt3c primesgo primesrs
diff --git a/README b/README
index 4bd1f0b..ed664bb 100644
--- a/README
+++ b/README
@@ -5,6 +5,10 @@ Mindstab.net Multi language prime number project:
   Prime number finders in ~40 languages
   and a test driver
 
+2023: added dart. updateed python to python3. Added run params to results.txt
+
+2020: added rust. Tweak ruby support for newer interpreter
+
 2014: added go
 
 2013: Cleanedup and small additions
diff --git a/autoTest.pl b/autoTest.pl
index 5427ad7..5419636 100755
--- a/autoTest.pl
+++ b/autoTest.pl
@@ -12,10 +12,10 @@ $os = `uname`;
 
 $debug=0;
 
-@langs = ("c",
+@langs = ("cgcc", "cclang",
 #	Uncomment for alternat C algorithms      	
 #	"c2", "ca", "ca2", "ca3", 
-	"objc", "cpp",  "asm", "for", "pas", "go", "rs", "ada", "hs", "e", "cbl", "oml", "java", "scala", "cs", "vb", "erl", "awk", "pl", "php", "py", "tcl", "rb", "cl", "scm", "st", "sml", "4th", "pro", "m3", "pike", "lua", "rexx", "r", "fe", "5c", "m4", "sh");
+	"objc", "cpp",  "asm", "for", "pas", "go", "rs", "ada", "hs", "e", "cbl", "oml", "java", "scala", "cs", "vb", "erl", "awk", "pl", "php", "py", "tcl", "rb", "dart", "cl", "scm", "st", "sml", "4th", "pro", "m3", "pike", "lua", "rexx", "r", "fe", "5c", "m4", "sh");
 
 $llen = $#langs+1;
 
@@ -25,19 +25,25 @@ chomp($itr);
 print "\n";
 if($itr < 1) { $itr = 3; }
 
-print "Maximun number to search to [100000]: ";
+print "Maximun number to search to [1000000]: ";
 $max = <stdin>;
 chomp($max);
 print "\n";
-if($max < 1) { $max = 100000; }
+if($max < 1) { $max = 1000000; }
 
 #sources
 
-$data{'c'}{'name'} = "C";
-$data{'c'}{'src'}= "primes.c";
-$data{'c'}{'prog'} = "primesc";
-$data{'c'}{'compiler0'} = "gcc";
-$data{'c'}{'cflags0'} = "-lm -O3 -o " . $data{'c'}{'prog'};
+$data{'cgcc'}{'name'} = "C (gcc)";
+$data{'cgcc'}{'src'}= "primes.c";
+$data{'cgcc'}{'prog'} = "primesgcc";
+$data{'cgcc'}{'compiler0'} = "gcc";
+$data{'cgcc'}{'cflags0'} = "-lm -O3 -o " . $data{'cgcc'}{'prog'};
+
+$data{'cclang'}{'name'} = "C (clang)";
+$data{'cclang'}{'src'}= "primes.c";
+$data{'cclang'}{'prog'} = "primesclang";
+$data{'cclang'}{'compiler0'} = "clang";
+$data{'cclang'}{'cflags0'} = "-lm -O3 -o " . $data{'cclang'}{'prog'};
 
 $data{'c2'}{'name'} = "C Sieve";
 $data{'c2'}{'src'}= "primes.sieve.c";
@@ -230,6 +236,10 @@ $data{'pl'}{'name'} = "PERL";
 $data{'pl'}{'prog'} = "primes.perl.pl";
 $data{'pl'}{'interp0'} = "perl";
 
+$data{'dart'}{'name'} = "Dart";
+$data{'dart'}{'prog'} = "primes.dart";
+$data{'dart'}{'interp0'} = "dart";
+
 $data{'5c'}{'name'} = "Nickle";
 $data{'5c'}{'prog'} = "primes.5c";
 $data{'5c'}{'interp0'} = "nickle";
@@ -291,7 +301,7 @@ $data{'hs'}{'compiler1'} = "interpB";
 
 $data{'py'}{'name'} = "Python";
 $data{'py'}{'prog'} = "primes.py";
-$data{'py'}{'interp0'} = "python";
+$data{'py'}{'interp0'} = "python3";
 
 $data{'php'}{'name'} = "PHP";
 $data{'php'}{'prog'} = "primes.php";
@@ -459,7 +469,10 @@ open(results, ">".$RESULTS) || die("Cannot open $RESULTS\n");
 print results "Prime number benchmarks\n";
 
 $mach = `uname -a`;
-print results "Benchmark machine: " . $mach."\n";
+print results "Benchmark machine: " . $mach;
+
+print results "Iterations: " . $itr . "\n";
+print results "Max number searched to: " . $max . "\n\n";
 
 # TESTS
 
@@ -574,10 +587,10 @@ foreach $l (@langs)
 				if(length($compiler) < 5) {print results "\t";}
 				if($data{$l}{"cflagspre$cp"}) { $cmd .= $data{$l}{"cflagspre$cp"};}	
 				$cmd .= "$comp ";
-				# So gcc stoped compiling if teh linking was done before the soruce file was specified
+				# So gcc stoped compiling if thh linking was done before the soruce file was specified
 				# go figure
 				$gcc_code = 0;
-				if ($l =~  /^o?b?j?ca?[23]?$/) {
+				if ($l =~  /^o?b?j?ca?[23]?(gcc)?$/) {
 					$gcc_code = 1;
 				}
 				
diff --git a/primes.dart b/primes.dart
new file mode 100644
index 0000000..38f7380
--- /dev/null
+++ b/primes.dart
@@ -0,0 +1,24 @@
+import 'dart:math';
+
+void main(List<String> args) {
+  if (args.length < 1) {
+    print("USAGE: dart primes.dart <MAX>");
+    return;
+  }  
+
+  var max = int.parse(args[0]);
+
+  for (var i = 3; i <= max; i += 2) {
+    var cap = sqrt(i);
+    var isPrime = true;
+    for (var j = 3; j <= cap; j += 2) {
+      if (i % j == 0) {
+        isPrime = false;
+        break;
+      }
+    }
+    if (isPrime) {
+      print(i);
+    }
+  }
+}
diff --git a/primes.py b/primes.py
index 555a784..766d4eb 100755
--- a/primes.py
+++ b/primes.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Python version of a Prime Number Finder
 # haplo@mindstab.net
 
@@ -7,11 +7,11 @@ import math
 
 try: max = int(sys.argv[1]);
 except: 
-	print "primes.py <MAX NUM>"
+	print("primes.py <MAX NUM>")
 	sys.exit()
 
 if max < 1:
-	print "Invalide MAX NUM"
+	print("Invalide MAX NUM")
 	sys.exit()
 
 for cnt in range(3, max, 2) :
@@ -23,5 +23,5 @@ for cnt in range(3, max, 2) :
 			break
 
 	if isPrime != 0 :
-		print cnt
+		print(cnt)