diff --git a/kmc_api/kmc_file.cpp b/kmc_api/kmc_file.cpp
index 62076ef..e292148 100644
--- a/kmc_api/kmc_file.cpp
+++ b/kmc_api/kmc_file.cpp
@@ -4,8 +4,8 @@
 
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "mmer.h"
diff --git a/kmc_api/kmc_file.h b/kmc_api/kmc_file.h
index 7ed1917..a6cfb06 100644
--- a/kmc_api/kmc_file.h
+++ b/kmc_api/kmc_file.h
@@ -4,8 +4,8 @@
 
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
  */
 
 #ifndef _KMC_FILE_H
diff --git a/kmc_api/kmer_api.cpp b/kmc_api/kmer_api.cpp
index 88d9561..90fb91d 100644
--- a/kmc_api/kmer_api.cpp
+++ b/kmc_api/kmer_api.cpp
@@ -4,8 +4,8 @@
 
   Authors: Sebastian Deorowicz and Agnieszka Debudaj-Grabysz
 
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "kmer_api.h"
diff --git a/kmc_api/kmer_api.h b/kmc_api/kmer_api.h
index d9d2ce0..8230d07 100644
--- a/kmc_api/kmer_api.h
+++ b/kmc_api/kmer_api.h
@@ -4,8 +4,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 
 Authors: Sebastian Deorowicz and Agnieszka Debudaj-Grabysz
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 
 #ifndef _KMER_API_H
diff --git a/kmc_api/kmer_defs.h b/kmc_api/kmer_defs.h
index 9a8cd85..90b0db4 100644
--- a/kmc_api/kmer_defs.h
+++ b/kmc_api/kmer_defs.h
@@ -4,8 +4,8 @@
 
   Authors: Sebastian Deorowicz and Agnieszka Debudaj-Grabysz
 
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 
@@ -14,8 +14,8 @@
 
 #include <cinttypes>
 
-#define KMC_VER		"3.2.0"
-#define KMC_DATE	"2021-12-23"
+#define KMC_VER		"3.2.1"
+#define KMC_DATE	"2022-01-04"
 
 #ifndef MIN
 #define MIN(x,y)	((x) < (y) ? (x) : (y))
diff --git a/kmc_api/mmer.cpp b/kmc_api/mmer.cpp
index 322e695..468bf59 100644
--- a/kmc_api/mmer.cpp
+++ b/kmc_api/mmer.cpp
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "../kmc_api/mmer.h"
diff --git a/kmc_api/mmer.h b/kmc_api/mmer.h
index bedf874..8208683 100644
--- a/kmc_api/mmer.h
+++ b/kmc_api/mmer.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _MMER_H
diff --git a/kmc_core/bam_utils.h b/kmc_core/bam_utils.h
index bd9bb95..2482500 100644
--- a/kmc_core/bam_utils.h
+++ b/kmc_core/bam_utils.h
@@ -4,8 +4,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 
 Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 
 #ifndef _BAM_UTILS_H
diff --git a/kmc_core/binary_reader.h b/kmc_core/binary_reader.h
index 0c310a8..c57a390 100644
--- a/kmc_core/binary_reader.h
+++ b/kmc_core/binary_reader.h
@@ -4,8 +4,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 
 Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 
 #ifndef _BINARY_READER_H
diff --git a/kmc_core/bkb_merger.h b/kmc_core/bkb_merger.h
index 81b16c7..9666248 100644
--- a/kmc_core/bkb_merger.h
+++ b/kmc_core/bkb_merger.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _HBH_MERGER_H
diff --git a/kmc_core/bkb_reader.cpp b/kmc_core/bkb_reader.cpp
index 3ec5ad4..ce32fa8 100644
--- a/kmc_core/bkb_reader.cpp
+++ b/kmc_core/bkb_reader.cpp
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "bkb_reader.h"
diff --git a/kmc_core/bkb_reader.h b/kmc_core/bkb_reader.h
index 07e32c8..b6e69ae 100644
--- a/kmc_core/bkb_reader.h
+++ b/kmc_core/bkb_reader.h
@@ -5,8 +5,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 
 Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 
 #ifndef _BKB_READER_H_
diff --git a/kmc_core/bkb_sorter.h b/kmc_core/bkb_sorter.h
index 86b090d..0aba5e9 100644
--- a/kmc_core/bkb_sorter.h
+++ b/kmc_core/bkb_sorter.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _BKB_SORTER_H
diff --git a/kmc_core/bkb_subbin.h b/kmc_core/bkb_subbin.h
index 1182a05..5bd8958 100644
--- a/kmc_core/bkb_subbin.h
+++ b/kmc_core/bkb_subbin.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _BKB_SUBBIN_H
diff --git a/kmc_core/bkb_uncompactor.h b/kmc_core/bkb_uncompactor.h
index 0960e99..24833ca 100644
--- a/kmc_core/bkb_uncompactor.h
+++ b/kmc_core/bkb_uncompactor.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _BKB_UNCOMPACTOR_H
diff --git a/kmc_core/bkb_writer.cpp b/kmc_core/bkb_writer.cpp
index eec775b..7da12b1 100644
--- a/kmc_core/bkb_writer.cpp
+++ b/kmc_core/bkb_writer.cpp
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "bkb_writer.h"
diff --git a/kmc_core/bkb_writer.h b/kmc_core/bkb_writer.h
index 5dc78c7..8e5b061 100644
--- a/kmc_core/bkb_writer.h
+++ b/kmc_core/bkb_writer.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _BKB_WRITER_H
diff --git a/kmc_core/cpu_info.cpp b/kmc_core/cpu_info.cpp
index 16a4311..119d748 100644
--- a/kmc_core/cpu_info.cpp
+++ b/kmc_core/cpu_info.cpp
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "cpu_info.h"
diff --git a/kmc_core/cpu_info.h b/kmc_core/cpu_info.h
index 40c7d44..b54e831 100644
--- a/kmc_core/cpu_info.h
+++ b/kmc_core/cpu_info.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _CPU_INFO_
diff --git a/kmc_core/defs.h b/kmc_core/defs.h
index 69eab6e..75afc97 100644
--- a/kmc_core/defs.h
+++ b/kmc_core/defs.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _DEFS_H
@@ -13,8 +13,8 @@
 
 #include <cinttypes>
 
-#define KMC_VER		"3.2.0"
-#define KMC_DATE	"2021-12-23"
+#define KMC_VER		"3.2.1"
+#define KMC_DATE	"2022-01-04"
 
 #define _CRT_SECURE_NO_WARNINGS
 
diff --git a/kmc_core/fastq_reader.cpp b/kmc_core/fastq_reader.cpp
index c06138b..b5a3e41 100644
--- a/kmc_core/fastq_reader.cpp
+++ b/kmc_core/fastq_reader.cpp
@@ -4,8 +4,8 @@
 
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include <algorithm>
diff --git a/kmc_core/fastq_reader.h b/kmc_core/fastq_reader.h
index 5d7e138..7a59897 100644
--- a/kmc_core/fastq_reader.h
+++ b/kmc_core/fastq_reader.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _FASTQ_READER_H
diff --git a/kmc_core/first_dispatch.h b/kmc_core/first_dispatch.h
index 15c9a60..3291397 100644
--- a/kmc_core/first_dispatch.h
+++ b/kmc_core/first_dispatch.h
@@ -4,8 +4,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 
 Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 #ifndef _FIRST_DISPATCH_H
 #define _FIRST_DISPATCH_H
diff --git a/kmc_core/intr_copy.h b/kmc_core/intr_copy.h
index 84d889c..59f8c49 100644
--- a/kmc_core/intr_copy.h
+++ b/kmc_core/intr_copy.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _INTR_COPY_H
diff --git a/kmc_core/kb_collector.cpp b/kmc_core/kb_collector.cpp
index 9e0ddf6..0c57eda 100644
--- a/kmc_core/kb_collector.cpp
+++ b/kmc_core/kb_collector.cpp
@@ -4,8 +4,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 
 Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 
 #include "kb_collector.h"
diff --git a/kmc_core/kb_collector.h b/kmc_core/kb_collector.h
index bc66c78..b87eecf 100644
--- a/kmc_core/kb_collector.h
+++ b/kmc_core/kb_collector.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _KB_COLLECTOR_H
diff --git a/kmc_core/kb_completer.cpp b/kmc_core/kb_completer.cpp
index 3edbe3a..45fc2c3 100644
--- a/kmc_core/kb_completer.cpp
+++ b/kmc_core/kb_completer.cpp
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 #include <algorithm>
 #include <numeric>
diff --git a/kmc_core/kb_completer.h b/kmc_core/kb_completer.h
index cf46043..ee6b978 100644
--- a/kmc_core/kb_completer.h
+++ b/kmc_core/kb_completer.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 #ifndef _KB_COMPLETER_H
 #define _KB_COMPLETER_H
diff --git a/kmc_core/kb_reader.h b/kmc_core/kb_reader.h
index f785340..adcd6e7 100644
--- a/kmc_core/kb_reader.h
+++ b/kmc_core/kb_reader.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _KB_READER_H
diff --git a/kmc_core/kb_sorter.h b/kmc_core/kb_sorter.h
index 8bb0ef7..fa4219d 100644
--- a/kmc_core/kb_sorter.h
+++ b/kmc_core/kb_sorter.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _KB_SORTER_H
diff --git a/kmc_core/kb_storer.cpp b/kmc_core/kb_storer.cpp
index 51c1982..87313e8 100644
--- a/kmc_core/kb_storer.cpp
+++ b/kmc_core/kb_storer.cpp
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 #include <algorithm>
 #include <numeric>
diff --git a/kmc_core/kb_storer.h b/kmc_core/kb_storer.h
index 30322c8..d306a1b 100644
--- a/kmc_core/kb_storer.h
+++ b/kmc_core/kb_storer.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _KB_STORER_H
diff --git a/kmc_core/kmc.h b/kmc_core/kmc.h
index ac5e97a..b87ff2a 100644
--- a/kmc_core/kmc.h
+++ b/kmc_core/kmc.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _KMC_H
diff --git a/kmc_core/kmc_runner.cpp b/kmc_core/kmc_runner.cpp
index a1903c6..9c31743 100644
--- a/kmc_core/kmc_runner.cpp
+++ b/kmc_core/kmc_runner.cpp
@@ -4,8 +4,8 @@
 
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "kmc_runner.h"
diff --git a/kmc_core/kmc_runner.h b/kmc_core/kmc_runner.h
index 4528f1b..faad294 100644
--- a/kmc_core/kmc_runner.h
+++ b/kmc_core/kmc_runner.h
@@ -4,8 +4,8 @@
 
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _KMC_RUNNER
diff --git a/kmc_core/kmer.cpp b/kmc_core/kmer.cpp
index 151f940..a589227 100644
--- a/kmc_core/kmer.cpp
+++ b/kmc_core/kmer.cpp
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "defs.h"
diff --git a/kmc_core/kmer.h b/kmc_core/kmer.h
index b7fc9b8..b4003d0 100644
--- a/kmc_core/kmer.h
+++ b/kmc_core/kmer.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _KMER_H
diff --git a/kmc_core/kxmer_set.h b/kmc_core/kxmer_set.h
index 1a58aa5..b4f958b 100644
--- a/kmc_core/kxmer_set.h
+++ b/kmc_core/kxmer_set.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 #ifndef _KXMER_SET_
 #define _KXMER_SET_
diff --git a/kmc_core/mem_disk_file.cpp b/kmc_core/mem_disk_file.cpp
index 9ea6dcf..9b67435 100644
--- a/kmc_core/mem_disk_file.cpp
+++ b/kmc_core/mem_disk_file.cpp
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "mem_disk_file.h"
diff --git a/kmc_core/mem_disk_file.h b/kmc_core/mem_disk_file.h
index db99e24..151dffe 100644
--- a/kmc_core/mem_disk_file.h
+++ b/kmc_core/mem_disk_file.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _MEM_DISK_FILE_H
diff --git a/kmc_core/meta_oper.h b/kmc_core/meta_oper.h
index f3ee277..fb4ac5b 100644
--- a/kmc_core/meta_oper.h
+++ b/kmc_core/meta_oper.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _META_OPER_H
diff --git a/kmc_core/params.h b/kmc_core/params.h
index 00c3deb..8b0f641 100644
--- a/kmc_core/params.h
+++ b/kmc_core/params.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _PARAMS_H
diff --git a/kmc_core/percent_progress.h b/kmc_core/percent_progress.h
index f190803..ade5bf2 100644
--- a/kmc_core/percent_progress.h
+++ b/kmc_core/percent_progress.h
@@ -5,7 +5,7 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
 Version: 3.0.0
-Date   : 2021-12-23
+Date   : 2022-01-04
 */
 
 #ifndef _PERCENT_PROGRESS_H
diff --git a/kmc_core/queues.h b/kmc_core/queues.h
index 3abd38d..17a0465 100644
--- a/kmc_core/queues.h
+++ b/kmc_core/queues.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _QUEUES_H
diff --git a/kmc_core/radix.h b/kmc_core/radix.h
index 367c6b1..eecbe8e 100644
--- a/kmc_core/radix.h
+++ b/kmc_core/radix.h
@@ -5,7 +5,7 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
 Version: 3.1.
-Date   : 2021-12-23
+Date   : 2022-01-04
 */
 #ifndef _RADIX_H
 #define _RADIX_H
diff --git a/kmc_core/raduls.h b/kmc_core/raduls.h
index 8283a52..a267c5c 100644
--- a/kmc_core/raduls.h
+++ b/kmc_core/raduls.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef RADULS_H
diff --git a/kmc_core/raduls_avx.cpp b/kmc_core/raduls_avx.cpp
index 1844ad0..7d271db 100644
--- a/kmc_core/raduls_avx.cpp
+++ b/kmc_core/raduls_avx.cpp
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "raduls_impl.h"
diff --git a/kmc_core/raduls_avx2.cpp b/kmc_core/raduls_avx2.cpp
index 1844ad0..7d271db 100644
--- a/kmc_core/raduls_avx2.cpp
+++ b/kmc_core/raduls_avx2.cpp
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "raduls_impl.h"
diff --git a/kmc_core/raduls_impl.h b/kmc_core/raduls_impl.h
index 835a3c9..3eac301 100644
--- a/kmc_core/raduls_impl.h
+++ b/kmc_core/raduls_impl.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _RADULS_IMPL_H
diff --git a/kmc_core/raduls_sse2.cpp b/kmc_core/raduls_sse2.cpp
index 1844ad0..7d271db 100644
--- a/kmc_core/raduls_sse2.cpp
+++ b/kmc_core/raduls_sse2.cpp
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "raduls_impl.h"
diff --git a/kmc_core/raduls_sse41.cpp b/kmc_core/raduls_sse41.cpp
index 1844ad0..7d271db 100644
--- a/kmc_core/raduls_sse41.cpp
+++ b/kmc_core/raduls_sse41.cpp
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "raduls_impl.h"
diff --git a/kmc_core/rev_byte.cpp b/kmc_core/rev_byte.cpp
index 93942f7..0676268 100644
--- a/kmc_core/rev_byte.cpp
+++ b/kmc_core/rev_byte.cpp
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "rev_byte.h"
diff --git a/kmc_core/rev_byte.h b/kmc_core/rev_byte.h
index df965a8..c1249d6 100644
--- a/kmc_core/rev_byte.h
+++ b/kmc_core/rev_byte.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _REV_BYTE_H
diff --git a/kmc_core/s_mapper.h b/kmc_core/s_mapper.h
index 1c777f3..469b7fd 100644
--- a/kmc_core/s_mapper.h
+++ b/kmc_core/s_mapper.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _S_MAPPER_H
diff --git a/kmc_core/small_k_buf.h b/kmc_core/small_k_buf.h
index 2a9474e..9a4537f 100644
--- a/kmc_core/small_k_buf.h
+++ b/kmc_core/small_k_buf.h
@@ -4,7 +4,7 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
+  Version: 3.2.1
   Date   : 2017-01-28
 */
 
diff --git a/kmc_core/small_sort.h b/kmc_core/small_sort.h
index 9becde5..f513cec 100644
--- a/kmc_core/small_sort.h
+++ b/kmc_core/small_sort.h
@@ -4,8 +4,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 
 Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 #ifndef _SMALL_SORT_H
 #define _SMALL_SORT_H
diff --git a/kmc_core/splitter.cpp b/kmc_core/splitter.cpp
index 3f46c90..3ecf7bb 100644
--- a/kmc_core/splitter.cpp
+++ b/kmc_core/splitter.cpp
@@ -4,8 +4,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 
 Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 
 #include "splitter.h"
diff --git a/kmc_core/splitter.h b/kmc_core/splitter.h
index f544d78..dbe47e7 100644
--- a/kmc_core/splitter.h
+++ b/kmc_core/splitter.h
@@ -4,8 +4,8 @@
   
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _SPLITTER_H
diff --git a/kmc_core/timer.cpp b/kmc_core/timer.cpp
index 7c024dd..eaca7f6 100644
--- a/kmc_core/timer.cpp
+++ b/kmc_core/timer.cpp
@@ -5,8 +5,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 The source codes are based on codes written by Dennis and published:
 http://allmybrain.com/2008/06/10/timing-cc-code-on-linux/
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 
 #ifdef _WIN32
diff --git a/kmc_core/timer.h b/kmc_core/timer.h
index e2380cf..8cb75dc 100644
--- a/kmc_core/timer.h
+++ b/kmc_core/timer.h
@@ -5,8 +5,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 The source codes are based on codes written by Dennis and published:
 http://allmybrain.com/2008/06/10/timing-cc-code-on-linux/
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 
 #ifndef _TIMER_H
diff --git a/kmc_core/tmp_files_owner.h b/kmc_core/tmp_files_owner.h
index 15ad988..0d1f0ab 100644
--- a/kmc_core/tmp_files_owner.h
+++ b/kmc_core/tmp_files_owner.h
@@ -4,8 +4,8 @@
 
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _TMP_FILES_OWNER_H
diff --git a/kmc_dump/kmc_dump.cpp b/kmc_dump/kmc_dump.cpp
index c73f479..105f317 100644
--- a/kmc_dump/kmc_dump.cpp
+++ b/kmc_dump/kmc_dump.cpp
@@ -7,8 +7,8 @@
 
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include <iostream>
diff --git a/kmc_dump/nc_utils.cpp b/kmc_dump/nc_utils.cpp
index c205486..6ede0ee 100644
--- a/kmc_dump/nc_utils.cpp
+++ b/kmc_dump/nc_utils.cpp
@@ -7,8 +7,8 @@
 
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "nc_utils.h"
diff --git a/kmc_dump/nc_utils.h b/kmc_dump/nc_utils.h
index dbfc5e1..2642e9d 100644
--- a/kmc_dump/nc_utils.h
+++ b/kmc_dump/nc_utils.h
@@ -7,8 +7,8 @@
 
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include <string>
diff --git a/kmc_dump_sample/kmc_dump_sample.cpp b/kmc_dump_sample/kmc_dump_sample.cpp
index 0430152..9821a37 100644
--- a/kmc_dump_sample/kmc_dump_sample.cpp
+++ b/kmc_dump_sample/kmc_dump_sample.cpp
@@ -7,8 +7,8 @@
 
   Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include <iostream>
diff --git a/kmc_tools/bundle.h b/kmc_tools/bundle.h
index ef9cb60..538f888 100644
--- a/kmc_tools/bundle.h
+++ b/kmc_tools/bundle.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _BUNDLE_H
diff --git a/kmc_tools/check_kmer.h b/kmc_tools/check_kmer.h
index aac1284..4c97e10 100644
--- a/kmc_tools/check_kmer.h
+++ b/kmc_tools/check_kmer.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _CHECK_KMER_H
diff --git a/kmc_tools/config.h b/kmc_tools/config.h
index eb08898..2c34016 100644
--- a/kmc_tools/config.h
+++ b/kmc_tools/config.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _CONFIG_H
diff --git a/kmc_tools/db_writer.h b/kmc_tools/db_writer.h
index 299e8ad..d194fc5 100644
--- a/kmc_tools/db_writer.h
+++ b/kmc_tools/db_writer.h
@@ -4,8 +4,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 
 Authors: Marek Kokot
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 
 #ifndef _DB_WRITER_H
diff --git a/kmc_tools/defs.h b/kmc_tools/defs.h
index 2d2763b..832c57a 100644
--- a/kmc_tools/defs.h
+++ b/kmc_tools/defs.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _DEFS_H
@@ -32,8 +32,8 @@ using uchar = unsigned char;
 //#define ENABLE_DEBUG
 //#define ENABLE_LOGGER
 
-#define KMC_VER		"3.2.0"
-#define KMC_DATE	"2021-12-23"
+#define KMC_VER		"3.2.1"
+#define KMC_DATE	"2022-01-04"
 
 #define DEFAULT_CIRCULAL_QUEUE_CAPACITY (4)
 
diff --git a/kmc_tools/dump_writer.h b/kmc_tools/dump_writer.h
index 9e77ec6..7d551e8 100644
--- a/kmc_tools/dump_writer.h
+++ b/kmc_tools/dump_writer.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _DUMP_WRITER_H
diff --git a/kmc_tools/expression_node.h b/kmc_tools/expression_node.h
index d8f770c..9cf2d3b 100644
--- a/kmc_tools/expression_node.h
+++ b/kmc_tools/expression_node.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _EXPRESSION_NODE_H
diff --git a/kmc_tools/fastq_filter.cpp b/kmc_tools/fastq_filter.cpp
index 3fd2b4d..9646d67 100644
--- a/kmc_tools/fastq_filter.cpp
+++ b/kmc_tools/fastq_filter.cpp
@@ -4,8 +4,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 
 Authors: Marek Kokot
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 
 #include "fastq_filter.h"
diff --git a/kmc_tools/fastq_filter.h b/kmc_tools/fastq_filter.h
index f972f33..48ce72f 100644
--- a/kmc_tools/fastq_filter.h
+++ b/kmc_tools/fastq_filter.h
@@ -4,8 +4,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 
 Authors: Marek Kokot
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 
 #ifndef _FASTQ_FILTER_H
diff --git a/kmc_tools/fastq_reader.cpp b/kmc_tools/fastq_reader.cpp
index 3d869e2..475cc1d 100644
--- a/kmc_tools/fastq_reader.cpp
+++ b/kmc_tools/fastq_reader.cpp
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include <algorithm>
diff --git a/kmc_tools/fastq_reader.h b/kmc_tools/fastq_reader.h
index ef9bb69..f4fe1f2 100644
--- a/kmc_tools/fastq_reader.h
+++ b/kmc_tools/fastq_reader.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _FASTQ_READER_H
diff --git a/kmc_tools/fastq_writer.cpp b/kmc_tools/fastq_writer.cpp
index 825475f..f3e03b2 100644
--- a/kmc_tools/fastq_writer.cpp
+++ b/kmc_tools/fastq_writer.cpp
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "fastq_writer.h"
diff --git a/kmc_tools/fastq_writer.h b/kmc_tools/fastq_writer.h
index 0cae2ed..8793038 100644
--- a/kmc_tools/fastq_writer.h
+++ b/kmc_tools/fastq_writer.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _FASTQ_WRITER_H
diff --git a/kmc_tools/histogram_writer.h b/kmc_tools/histogram_writer.h
index 91385a6..d49cb5f 100644
--- a/kmc_tools/histogram_writer.h
+++ b/kmc_tools/histogram_writer.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _HISTOGRAM_WRITER_H
diff --git a/kmc_tools/kff_db_writer.h b/kmc_tools/kff_db_writer.h
index 234f685..0172502 100644
--- a/kmc_tools/kff_db_writer.h
+++ b/kmc_tools/kff_db_writer.h
@@ -4,8 +4,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 
 Authors: Marek Kokot
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 
 //TODO KFF: consider separate thread for writing linke in kmc1 db writer
diff --git a/kmc_tools/kff_kmc2_reader_utils.h b/kmc_tools/kff_kmc2_reader_utils.h
index 205e290..b2a8902 100644
--- a/kmc_tools/kff_kmc2_reader_utils.h
+++ b/kmc_tools/kff_kmc2_reader_utils.h
@@ -4,8 +4,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 
 Authors: Marek Kokot
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 
 #ifndef _KFF_KMC2_UTILS_H
diff --git a/kmc_tools/kff_random_access.h b/kmc_tools/kff_random_access.h
index cabd4cc..42b30e4 100644
--- a/kmc_tools/kff_random_access.h
+++ b/kmc_tools/kff_random_access.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _KFF_RANDOM_ACCESS_H
diff --git a/kmc_tools/kmc1_db_reader.h b/kmc_tools/kmc1_db_reader.h
index 41f6736..c3eda17 100644
--- a/kmc_tools/kmc1_db_reader.h
+++ b/kmc_tools/kmc1_db_reader.h
@@ -4,8 +4,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 
 Authors: Marek Kokot
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 
 #ifndef _KMC1_DB_READER_H
diff --git a/kmc_tools/kmc1_db_writer.h b/kmc_tools/kmc1_db_writer.h
index 036366b..387ce05 100644
--- a/kmc_tools/kmc1_db_writer.h
+++ b/kmc_tools/kmc1_db_writer.h
@@ -4,8 +4,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 
 Authors: Marek Kokot
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 
 #ifndef _KMC1_DB_WRITER_H
diff --git a/kmc_tools/kmc2_db_reader.h b/kmc_tools/kmc2_db_reader.h
index f967ba4..dedbd48 100644
--- a/kmc_tools/kmc2_db_reader.h
+++ b/kmc_tools/kmc2_db_reader.h
@@ -4,8 +4,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 
 Authors: Marek Kokot
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 
 #ifndef _KMC2_DB_READER_H
diff --git a/kmc_tools/kmc_tools.cpp b/kmc_tools/kmc_tools.cpp
index 597351d..1b3b030 100644
--- a/kmc_tools/kmc_tools.cpp
+++ b/kmc_tools/kmc_tools.cpp
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include <iostream>
diff --git a/kmc_tools/kmer.h b/kmc_tools/kmer.h
index 50b26ae..9729ca1 100644
--- a/kmc_tools/kmer.h
+++ b/kmc_tools/kmer.h
@@ -4,8 +4,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 
 Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 
 #ifndef _KMER_H
diff --git a/kmc_tools/kmer_file_header.cpp b/kmc_tools/kmer_file_header.cpp
index 55bbeb2..1e6c47a 100644
--- a/kmc_tools/kmer_file_header.cpp
+++ b/kmc_tools/kmer_file_header.cpp
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "kmer_file_header.h"
diff --git a/kmc_tools/kmer_file_header.h b/kmc_tools/kmer_file_header.h
index 1b8d1d8..a848af1 100644
--- a/kmc_tools/kmer_file_header.h
+++ b/kmc_tools/kmer_file_header.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _KMER_FILE_HEADER_H
diff --git a/kmc_tools/meta_oper.h b/kmc_tools/meta_oper.h
index f7e3174..38e1d03 100644
--- a/kmc_tools/meta_oper.h
+++ b/kmc_tools/meta_oper.h
@@ -4,8 +4,8 @@ The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
 
 Authors: Sebastian Deorowicz, Agnieszka Debudaj-Grabysz, Marek Kokot
 
-Version: 3.2.0
-Date   : 2021-12-23
+Version: 3.2.1
+Date   : 2022-01-04
 */
 
 #ifndef _META_OPER_H
diff --git a/kmc_tools/nc_utils.cpp b/kmc_tools/nc_utils.cpp
index 67829d6..c4f4501 100644
--- a/kmc_tools/nc_utils.cpp
+++ b/kmc_tools/nc_utils.cpp
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "nc_utils.h"
diff --git a/kmc_tools/nc_utils.h b/kmc_tools/nc_utils.h
index 7aaca19..fb3a336 100644
--- a/kmc_tools/nc_utils.h
+++ b/kmc_tools/nc_utils.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include <string>
diff --git a/kmc_tools/operations.h b/kmc_tools/operations.h
index 284955a..4922eee 100644
--- a/kmc_tools/operations.h
+++ b/kmc_tools/operations.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _OPERATIONS_H
diff --git a/kmc_tools/output_parser.h b/kmc_tools/output_parser.h
index 08a7ed9..839683d 100644
--- a/kmc_tools/output_parser.h
+++ b/kmc_tools/output_parser.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _OUTPUT_PARSER_H
diff --git a/kmc_tools/parameters_parser.cpp b/kmc_tools/parameters_parser.cpp
index 468abd6..55b1817 100644
--- a/kmc_tools/parameters_parser.cpp
+++ b/kmc_tools/parameters_parser.cpp
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "parameters_parser.h"
diff --git a/kmc_tools/parameters_parser.h b/kmc_tools/parameters_parser.h
index d03adca..2282a98 100644
--- a/kmc_tools/parameters_parser.h
+++ b/kmc_tools/parameters_parser.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _PARAMETERS_PARSER_H
diff --git a/kmc_tools/parser.cpp b/kmc_tools/parser.cpp
index 7324c93..8705f73 100644
--- a/kmc_tools/parser.cpp
+++ b/kmc_tools/parser.cpp
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "parser.h"
diff --git a/kmc_tools/parser.h b/kmc_tools/parser.h
index 1d57b74..6384800 100644
--- a/kmc_tools/parser.h
+++ b/kmc_tools/parser.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _PARSER_H
diff --git a/kmc_tools/percent_progress.cpp b/kmc_tools/percent_progress.cpp
index d2a45aa..ca1078c 100644
--- a/kmc_tools/percent_progress.cpp
+++ b/kmc_tools/percent_progress.cpp
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #include "percent_progress.h"
diff --git a/kmc_tools/percent_progress.h b/kmc_tools/percent_progress.h
index cdee9e9..09fec47 100644
--- a/kmc_tools/percent_progress.h
+++ b/kmc_tools/percent_progress.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _PERCENT_PROGRESS_H
diff --git a/kmc_tools/queues.h b/kmc_tools/queues.h
index 4444914..87657ab 100644
--- a/kmc_tools/queues.h
+++ b/kmc_tools/queues.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _QUEUES_H_
diff --git a/kmc_tools/thread_watch.h b/kmc_tools/thread_watch.h
index 29472b2..7a27e8f 100644
--- a/kmc_tools/thread_watch.h
+++ b/kmc_tools/thread_watch.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _THREAD_WATCH_H
diff --git a/kmc_tools/timer.h b/kmc_tools/timer.h
index 9f1b5e8..e539a9a 100644
--- a/kmc_tools/timer.h
+++ b/kmc_tools/timer.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _TIMER_H
diff --git a/kmc_tools/tokenizer.cpp b/kmc_tools/tokenizer.cpp
index c75da1a..042fcdb 100644
--- a/kmc_tools/tokenizer.cpp
+++ b/kmc_tools/tokenizer.cpp
@@ -4,7 +4,7 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
+  Version: 3.2.1
   Date   : 2017-01-28
 */
 
diff --git a/kmc_tools/tokenizer.h b/kmc_tools/tokenizer.h
index b1e0cdc..f6d7084 100644
--- a/kmc_tools/tokenizer.h
+++ b/kmc_tools/tokenizer.h
@@ -4,8 +4,8 @@
   
   Authors: Marek Kokot
   
-  Version: 3.2.0
-  Date   : 2021-12-23
+  Version: 3.2.1
+  Date   : 2022-01-04
 */
 
 #ifndef _TOKENIZER_H
diff --git a/py_kmc_api/py_kmc_dump.py b/py_kmc_api/py_kmc_dump.py
index 6fda672..397a116 100644
--- a/py_kmc_api/py_kmc_dump.py
+++ b/py_kmc_api/py_kmc_dump.py
@@ -4,8 +4,8 @@
 import argparse
 import textwrap
 
-VER = "3.2.0"
-DATE = "2021-12-23"
+VER = "3.2.1"
+DATE = "2022-01-04"
 
 def GeneralHelp():
     print('KMC dump ver. {} ({})'.format(VER, DATE))