diff --git a/ChangeLog.md b/ChangeLog.md
index 5a8f0af6..53ca0059 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -5,6 +5,14 @@ English version [by Google](https://gitflic-ru.translate.goog/project/erthink/li
 and [by Yandex](https://translated.turbopages.org/proxy_u/ru-en.en/https/gitflic.ru/project/erthink/libmdbx/blob?file=ChangeLog.md).
 
 
+## v0.13.0 at 2023-04-23
+
+Не выпуск, а начало ветки `0.13` с новым функционалом и изменением API.
+
+
+********************************************************************************
+
+
 ## v0.12.8 (сопровождение и подготовка к релизу)
 
 Поддержка стабильной ветки.
@@ -22,6 +30,7 @@ and [by Yandex](https://translated.turbopages.org/proxy_u/ru-en.en/https/gitflic
 
 ## v0.12.8 "Владимир Уткин" от 2023-10-17
 
+
 Стабилизирующий выпуск с исправлением обнаруженных ошибок и устранением недочетов,
 в день 100-летия со дня рождения выдающегося советского и российского ученого и конструктора [Влади́мира Фёдоровича У́ткина](https://ru.wikipedia.org/wiki/Уткин,_Владимир_Фёдорович).
 
diff --git a/mdbx.h b/mdbx.h
index ece77eda..47d3e12a 100644
--- a/mdbx.h
+++ b/mdbx.h
@@ -634,9 +634,9 @@ typedef mode_t mdbx_mode_t;
 extern "C" {
 #endif
 
-/* MDBX version 0.12.x */
+/* MDBX version 0.13.x */
 #define MDBX_VERSION_MAJOR 0
-#define MDBX_VERSION_MINOR 12
+#define MDBX_VERSION_MINOR 13
 
 #ifndef LIBMDBX_API
 #if defined(LIBMDBX_EXPORTS)
diff --git a/src/man1/mdbx_chk.1 b/src/man1/mdbx_chk.1
index aa4e9868..6f26166c 100644
--- a/src/man1/mdbx_chk.1
+++ b/src/man1/mdbx_chk.1
@@ -1,6 +1,6 @@
 .\" Copyright 2015-2023 Leonid Yuriev <leo@yuriev.ru>.
 .\" Copying restrictions apply.  See COPYRIGHT/LICENSE.
-.TH MDBX_CHK 1 "2023-10-17" "MDBX 0.12.8"
+.TH MDBX_CHK 1 "2023-04-23" "MDBX 0.13"
 .SH NAME
 mdbx_chk \- MDBX checking tool
 .SH SYNOPSIS
diff --git a/src/man1/mdbx_copy.1 b/src/man1/mdbx_copy.1
index 4e67a5b8..18658782 100644
--- a/src/man1/mdbx_copy.1
+++ b/src/man1/mdbx_copy.1
@@ -2,7 +2,7 @@
 .\" Copyright 2015,2016 Peter-Service R&D LLC <http://billing.ru/>.
 .\" Copyright 2012-2015 Howard Chu, Symas Corp. All Rights Reserved.
 .\" Copying restrictions apply.  See COPYRIGHT/LICENSE.
-.TH MDBX_COPY 1 "2023-10-17" "MDBX 0.12.8"
+.TH MDBX_COPY 1 "2023-04-23" "MDBX 0.13"
 .SH NAME
 mdbx_copy \- MDBX environment copy tool
 .SH SYNOPSIS
diff --git a/src/man1/mdbx_drop.1 b/src/man1/mdbx_drop.1
index 425eecd2..634150ac 100644
--- a/src/man1/mdbx_drop.1
+++ b/src/man1/mdbx_drop.1
@@ -1,7 +1,7 @@
 .\" Copyright 2021-2023 Leonid Yuriev <leo@yuriev.ru>.
 .\" Copyright 2014-2021 Howard Chu, Symas Corp. All Rights Reserved.
 .\" Copying restrictions apply.  See COPYRIGHT/LICENSE.
-.TH MDBX_DROP 1 "2023-10-17" "MDBX 0.12.8"
+.TH MDBX_DROP 1 "2023-04-23" "MDBX 0.13"
 .SH NAME
 mdbx_drop \- MDBX database delete tool
 .SH SYNOPSIS
diff --git a/src/man1/mdbx_dump.1 b/src/man1/mdbx_dump.1
index d236b93c..13a746b7 100644
--- a/src/man1/mdbx_dump.1
+++ b/src/man1/mdbx_dump.1
@@ -2,7 +2,7 @@
 .\" Copyright 2015,2016 Peter-Service R&D LLC <http://billing.ru/>.
 .\" Copyright 2014-2015 Howard Chu, Symas Corp. All Rights Reserved.
 .\" Copying restrictions apply.  See COPYRIGHT/LICENSE.
-.TH MDBX_DUMP 1 "2023-10-17" "MDBX 0.12.8"
+.TH MDBX_DUMP 1 "2023-04-23" "MDBX 0.13"
 .SH NAME
 mdbx_dump \- MDBX environment export tool
 .SH SYNOPSIS
diff --git a/src/man1/mdbx_load.1 b/src/man1/mdbx_load.1
index ae8e7596..fdd2fc24 100644
--- a/src/man1/mdbx_load.1
+++ b/src/man1/mdbx_load.1
@@ -2,7 +2,7 @@
 .\" Copyright 2015,2016 Peter-Service R&D LLC <http://billing.ru/>.
 .\" Copyright 2014-2015 Howard Chu, Symas Corp. All Rights Reserved.
 .\" Copying restrictions apply.  See COPYRIGHT/LICENSE.
-.TH MDBX_LOAD 1 "2023-10-17" "MDBX 0.12.8"
+.TH MDBX_LOAD 1 "2023-04-23" "MDBX 0.13"
 .SH NAME
 mdbx_load \- MDBX environment import tool
 .SH SYNOPSIS
diff --git a/src/man1/mdbx_stat.1 b/src/man1/mdbx_stat.1
index c330d2e6..0260bb71 100644
--- a/src/man1/mdbx_stat.1
+++ b/src/man1/mdbx_stat.1
@@ -2,7 +2,7 @@
 .\" Copyright 2015,2016 Peter-Service R&D LLC <http://billing.ru/>.
 .\" Copyright 2012-2015 Howard Chu, Symas Corp. All Rights Reserved.
 .\" Copying restrictions apply.  See COPYRIGHT/LICENSE.
-.TH MDBX_STAT 1 "2023-10-17" "MDBX 0.12.8"
+.TH MDBX_STAT 1 "2023-04-23" "MDBX 0.13"
 .SH NAME
 mdbx_stat \- MDBX environment status tool
 .SH SYNOPSIS