diff --git a/equi/equi-stratum.cpp b/equi/equi-stratum.cpp
index 83e67ab..403c185 100644
--- a/equi/equi-stratum.cpp
+++ b/equi/equi-stratum.cpp
@@ -197,7 +197,9 @@ bool equi_stratum_show_message(struct stratum_ctx *sctx, json_t *id, json_t *par
 		const char* data = json_string_value(val);
 		if (data && strlen(data)) {
 			char symbol[32] = { 0 };
-			int ss = sscanf(data, "equihash %s block %u", symbol, &sctx->job.height);
+			uint32_t height = 0;
+			int ss = sscanf(data, "equihash %s block %u", symbol, &height);
+			if (height && ss > 1) sctx->job.height = height;
 			if (opt_debug && ss > 1) applog(LOG_DEBUG, "%s", data);
 		}
 	}
diff --git a/res/ccminer.rc b/res/ccminer.rc
index 44ef540..d7cf1c2 100644
--- a/res/ccminer.rc
+++ b/res/ccminer.rc
@@ -60,8 +60,8 @@ IDI_ICON1               ICON                    "ccminer.ico"
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 2,0,0,0
- PRODUCTVERSION 2,0,0,0
+ FILEVERSION 2,2,0,0
+ PRODUCTVERSION 2,2,0,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x21L
@@ -76,10 +76,10 @@ BEGIN
     BEGIN
         BLOCK "040904e4"
         BEGIN
-            VALUE "FileVersion", "2.0"
+            VALUE "FileVersion", "2.2"
             VALUE "LegalCopyright", "Copyright (C) 2017"
             VALUE "ProductName", "ccminer"
-            VALUE "ProductVersion", "2.0"
+            VALUE "ProductVersion", "2.2"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/skunk/skunk.cu b/skunk/skunk.cu
index 0a503e7..a991a6b 100644
--- a/skunk/skunk.cu
+++ b/skunk/skunk.cu
@@ -101,7 +101,7 @@ extern "C" int scanhash_skunk(int thr_id, struct work* work, uint32_t max_nonce,
 
 		skunk_cpu_init(thr_id, throughput);
 		use_compat_kernels[thr_id] = (cuda_arch[dev_id] < 500 || CUDART_VERSION < 7500 || CUDART_VERSION > 8000);
-		x13_fugue512_cpu_init(thr_id, throughput);
+		if (use_compat_kernels[thr_id]) x13_fugue512_cpu_init(thr_id, throughput);
 
 		CUDA_CALL_OR_RET_X(cudaMalloc(&d_hash[thr_id], (size_t) 64 * throughput), 0);
 		CUDA_CALL_OR_RET_X(cudaMalloc(&d_resNonce[thr_id], NBN * sizeof(uint32_t)), -1);
@@ -200,7 +200,8 @@ extern "C" void free_skunk(int thr_id)
 
 	cudaThreadSynchronize();
 
-	x13_fugue512_cpu_free(thr_id);
+	if (use_compat_kernels[thr_id])
+		x13_fugue512_cpu_free(thr_id);
 
 	cudaFree(d_hash[thr_id]);
 	cudaFree(d_resNonce[thr_id]);