diff --git a/docs/changes.xml b/docs/changes.xml
index 60191223..fae63a2a 100644
--- a/docs/changes.xml
+++ b/docs/changes.xml
@@ -5,6 +5,38 @@
 <change_log title="unit">
 
 
+<changes apply="unit-php
+                unit-python unit-python2.7
+                unit-python3.4 unit-python3.5 unit-python3.6
+                unit-go unit-go1.7 unit-go1.8 unit-go1.9 unit-go1.10
+                unit-perl
+                unit-ruby"
+         ver="1.4" rev="2"
+         date="2018-09-27" time="13:30:00 +0300"
+         packager="Andrei Belov &lt;defan@nginx.com&gt;">
+
+<change type="bugfix">
+<para>
+corrected instructions for launching sample application.
+</para>
+</change>
+
+</changes>
+
+
+<changes apply="unit" ver="1.4" rev="2"
+         date="2018-09-27" time="13:30:00 +0300"
+         packager="Andrei Belov &lt;defan@nginx.com&gt;">
+
+<change type="change">
+<para>
+the "saveconfig" and "loadconfig" action scripts were removed.
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="unit-php
                 unit-python unit-python2.7
                 unit-python3.4 unit-python3.5 unit-python3.6
diff --git a/pkg/deb/Makefile b/pkg/deb/Makefile
index 735f283b..6ed1c94a 100644
--- a/pkg/deb/Makefile
+++ b/pkg/deb/Makefile
@@ -3,7 +3,7 @@
 DEFAULT_VERSION := $(shell grep 'define NXT_VERSION' ../../src/nxt_main.h \
 			| sed -e 's/^.*"\(.*\)".*/\1/')
 
-DEFAULT_RELEASE := 1
+DEFAULT_RELEASE := 2
 
 VERSION ?= $(DEFAULT_VERSION)
 RELEASE ?= $(DEFAULT_RELEASE)
diff --git a/pkg/deb/Makefile.go b/pkg/deb/Makefile.go
index 2d7d6537..66792a55 100644
--- a/pkg/deb/Makefile.go
+++ b/pkg/deb/Makefile.go
@@ -4,7 +4,7 @@ MODULE_SUFFIX_go=	go
 MODULE_SUMMARY_go=	Go module for NGINX Unit
 
 MODULE_VERSION_go=	$(VERSION)
-MODULE_RELEASE_go=	1
+MODULE_RELEASE_go=	2
 
 MODULE_CONFARGS_go=	go --go-path=/usr/share/gocode
 MODULE_MAKEARGS_go=	go
diff --git a/pkg/deb/Makefile.go110 b/pkg/deb/Makefile.go110
index 863f7c90..e4883af4 100644
--- a/pkg/deb/Makefile.go110
+++ b/pkg/deb/Makefile.go110
@@ -4,7 +4,7 @@ MODULE_SUFFIX_go110=	go1.10
 MODULE_SUMMARY_go110=	Go 1.10 module for NGINX Unit
 
 MODULE_VERSION_go110=	$(VERSION)
-MODULE_RELEASE_go110=	1
+MODULE_RELEASE_go110=	2
 
 MODULE_CONFARGS_go110=	go --go=/usr/lib/go-1.10/bin/go --go-path=/usr/share/gocode
 MODULE_MAKEARGS_go110=	/usr/lib/go-1.10/bin/go
diff --git a/pkg/deb/Makefile.go17 b/pkg/deb/Makefile.go17
index 201b32b2..74084b49 100644
--- a/pkg/deb/Makefile.go17
+++ b/pkg/deb/Makefile.go17
@@ -4,7 +4,7 @@ MODULE_SUFFIX_go17=	go1.7
 MODULE_SUMMARY_go17=	Go 1.7 module for NGINX Unit
 
 MODULE_VERSION_go17=	$(VERSION)
-MODULE_RELEASE_go17=	1
+MODULE_RELEASE_go17=	2
 
 MODULE_CONFARGS_go17=	go --go=/usr/lib/go-1.7/bin/go --go-path=/usr/share/gocode
 MODULE_MAKEARGS_go17=	/usr/lib/go-1.7/bin/go
diff --git a/pkg/deb/Makefile.go18 b/pkg/deb/Makefile.go18
index 70b155d4..aaaae40d 100644
--- a/pkg/deb/Makefile.go18
+++ b/pkg/deb/Makefile.go18
@@ -4,7 +4,7 @@ MODULE_SUFFIX_go18=	go1.8
 MODULE_SUMMARY_go18=	Go 1.8 module for NGINX Unit
 
 MODULE_VERSION_go18=	$(VERSION)
-MODULE_RELEASE_go18=	1
+MODULE_RELEASE_go18=	2
 
 MODULE_CONFARGS_go18=	go --go=/usr/lib/go-1.8/bin/go --go-path=/usr/share/gocode
 MODULE_MAKEARGS_go18=	/usr/lib/go-1.8/bin/go
diff --git a/pkg/deb/Makefile.go19 b/pkg/deb/Makefile.go19
index 9ddcc493..aef41844 100644
--- a/pkg/deb/Makefile.go19
+++ b/pkg/deb/Makefile.go19
@@ -4,7 +4,7 @@ MODULE_SUFFIX_go19=	go1.9
 MODULE_SUMMARY_go19=	Go 1.9 module for NGINX Unit
 
 MODULE_VERSION_go19=	$(VERSION)
-MODULE_RELEASE_go19=	1
+MODULE_RELEASE_go19=	2
 
 MODULE_CONFARGS_go19=	go --go=/usr/lib/go-1.9/bin/go --go-path=/usr/share/gocode
 MODULE_MAKEARGS_go19=	/usr/lib/go-1.9/bin/go
diff --git a/pkg/deb/Makefile.perl b/pkg/deb/Makefile.perl
index 186b8e5a..31aa976a 100644
--- a/pkg/deb/Makefile.perl
+++ b/pkg/deb/Makefile.perl
@@ -4,7 +4,7 @@ MODULE_SUFFIX_perl=	perl
 MODULE_SUMMARY_perl=	Perl module for NGINX Unit
 
 MODULE_VERSION_perl=	$(VERSION)
-MODULE_RELEASE_perl=	1
+MODULE_RELEASE_perl=	2
 
 MODULE_CONFARGS_perl=	perl
 MODULE_MAKEARGS_perl=	perl
diff --git a/pkg/deb/Makefile.php b/pkg/deb/Makefile.php
index 193670e7..4f76e13d 100644
--- a/pkg/deb/Makefile.php
+++ b/pkg/deb/Makefile.php
@@ -4,7 +4,7 @@ MODULE_SUFFIX_php=	php
 MODULE_SUMMARY_php=	PHP module for NGINX Unit
 
 MODULE_VERSION_php=	$(VERSION)
-MODULE_RELEASE_php=	1
+MODULE_RELEASE_php=	2
 
 MODULE_CONFARGS_php=	php
 MODULE_MAKEARGS_php=	php
diff --git a/pkg/deb/Makefile.python b/pkg/deb/Makefile.python
index dec64b26..d4822c84 100644
--- a/pkg/deb/Makefile.python
+++ b/pkg/deb/Makefile.python
@@ -4,7 +4,7 @@ MODULE_SUFFIX_python=	python
 MODULE_SUMMARY_python=	Python module for NGINX Unit
 
 MODULE_VERSION_python=	$(VERSION)
-MODULE_RELEASE_python=	1
+MODULE_RELEASE_python=	2
 
 MODULE_CONFARGS_python=	python
 MODULE_MAKEARGS_python=	python
diff --git a/pkg/deb/Makefile.python27 b/pkg/deb/Makefile.python27
index ae1ae4c0..d9dee872 100644
--- a/pkg/deb/Makefile.python27
+++ b/pkg/deb/Makefile.python27
@@ -4,7 +4,7 @@ MODULE_SUFFIX_python27=		python2.7
 MODULE_SUMMARY_python27=	Python 2.7 module for NGINX Unit
 
 MODULE_VERSION_python27=	$(VERSION)
-MODULE_RELEASE_python27=	1
+MODULE_RELEASE_python27=	2
 
 MODULE_CONFARGS_python27=	python --config=python2.7-config
 MODULE_MAKEARGS_python27=	python2.7
diff --git a/pkg/deb/Makefile.python34 b/pkg/deb/Makefile.python34
index 5e043ef4..7a9db98a 100644
--- a/pkg/deb/Makefile.python34
+++ b/pkg/deb/Makefile.python34
@@ -4,7 +4,7 @@ MODULE_SUFFIX_python34=		python3.4
 MODULE_SUMMARY_python34=	Python 3.4 module for NGINX Unit
 
 MODULE_VERSION_python34=	$(VERSION)
-MODULE_RELEASE_python34=	1
+MODULE_RELEASE_python34=	2
 
 MODULE_CONFARGS_python34=	python --config=python3.4-config
 MODULE_MAKEARGS_python34=	python3.4
diff --git a/pkg/deb/Makefile.python35 b/pkg/deb/Makefile.python35
index 557690a9..60256680 100644
--- a/pkg/deb/Makefile.python35
+++ b/pkg/deb/Makefile.python35
@@ -4,7 +4,7 @@ MODULE_SUFFIX_python35=		python3.5
 MODULE_SUMMARY_python35=	Python 3.5 module for NGINX Unit
 
 MODULE_VERSION_python35=	$(VERSION)
-MODULE_RELEASE_python35=	1
+MODULE_RELEASE_python35=	2
 
 MODULE_CONFARGS_python35=	python --config=python3.5-config
 MODULE_MAKEARGS_python35=	python3.5
diff --git a/pkg/deb/Makefile.python36 b/pkg/deb/Makefile.python36
index 07cbba90..5f912ac1 100644
--- a/pkg/deb/Makefile.python36
+++ b/pkg/deb/Makefile.python36
@@ -4,7 +4,7 @@ MODULE_SUFFIX_python36=		python3.6
 MODULE_SUMMARY_python36=	Python 3.6 module for NGINX Unit
 
 MODULE_VERSION_python36=	$(VERSION)
-MODULE_RELEASE_python36=	1
+MODULE_RELEASE_python36=	2
 
 MODULE_CONFARGS_python36=	python --config=python3.6-config
 MODULE_MAKEARGS_python36=	python3.6
diff --git a/pkg/deb/Makefile.ruby b/pkg/deb/Makefile.ruby
index 1cb6baab..48ac4ede 100644
--- a/pkg/deb/Makefile.ruby
+++ b/pkg/deb/Makefile.ruby
@@ -4,7 +4,7 @@ MODULE_SUFFIX_ruby=	ruby
 MODULE_SUMMARY_ruby=	Ruby module for NGINX Unit
 
 MODULE_VERSION_ruby=	$(VERSION)
-MODULE_RELEASE_ruby=	1
+MODULE_RELEASE_ruby=	2
 
 MODULE_CONFARGS_ruby=	ruby
 MODULE_MAKEARGS_ruby=	ruby
diff --git a/pkg/docker/Dockerfile.full b/pkg/docker/Dockerfile.full
index 4443ed8c..1ccd4350 100644
--- a/pkg/docker/Dockerfile.full
+++ b/pkg/docker/Dockerfile.full
@@ -2,7 +2,7 @@ FROM debian:stretch-slim
 
 LABEL maintainer="NGINX Docker Maintainers <docker-maint@nginx.com>"
 
-ENV UNIT_VERSION          1.4-1~stretch
+ENV UNIT_VERSION          1.4-2~stretch
 
 RUN set -x \
 	&& apt-get update \
diff --git a/pkg/docker/Dockerfile.go1.7-dev b/pkg/docker/Dockerfile.go1.7-dev
index a97983ff..20b5dea8 100644
--- a/pkg/docker/Dockerfile.go1.7-dev
+++ b/pkg/docker/Dockerfile.go1.7-dev
@@ -2,7 +2,7 @@ FROM debian:stretch-slim
 
 LABEL maintainer="NGINX Docker Maintainers <docker-maint@nginx.com>"
 
-ENV UNIT_VERSION          1.4-1~stretch
+ENV UNIT_VERSION          1.4-2~stretch
 
 RUN set -x \
 	&& apt-get update \
diff --git a/pkg/docker/Dockerfile.go1.8-dev b/pkg/docker/Dockerfile.go1.8-dev
index 72650055..a87033c1 100644
--- a/pkg/docker/Dockerfile.go1.8-dev
+++ b/pkg/docker/Dockerfile.go1.8-dev
@@ -2,7 +2,7 @@ FROM debian:stretch-slim
 
 LABEL maintainer="NGINX Docker Maintainers <docker-maint@nginx.com>"
 
-ENV UNIT_VERSION          1.4-1~stretch
+ENV UNIT_VERSION          1.4-2~stretch
 
 RUN set -x \
 	&& apt-get update \
diff --git a/pkg/docker/Dockerfile.minimal b/pkg/docker/Dockerfile.minimal
index 52b7ecf4..8fe65bfc 100644
--- a/pkg/docker/Dockerfile.minimal
+++ b/pkg/docker/Dockerfile.minimal
@@ -2,7 +2,7 @@ FROM debian:stretch-slim
 
 LABEL maintainer="NGINX Docker Maintainers <docker-maint@nginx.com>"
 
-ENV UNIT_VERSION          1.4-1~stretch
+ENV UNIT_VERSION          1.4-2~stretch
 
 RUN set -x \
 	&& apt-get update \
diff --git a/pkg/docker/Dockerfile.perl5.24 b/pkg/docker/Dockerfile.perl5.24
index be4a01b3..53b650c0 100644
--- a/pkg/docker/Dockerfile.perl5.24
+++ b/pkg/docker/Dockerfile.perl5.24
@@ -2,7 +2,7 @@ FROM debian:stretch-slim
 
 LABEL maintainer="NGINX Docker Maintainers <docker-maint@nginx.com>"
 
-ENV UNIT_VERSION          1.4-1~stretch
+ENV UNIT_VERSION          1.4-2~stretch
 
 RUN set -x \
 	&& apt-get update \
diff --git a/pkg/docker/Dockerfile.php7.0 b/pkg/docker/Dockerfile.php7.0
index 17e02388..e20c2908 100644
--- a/pkg/docker/Dockerfile.php7.0
+++ b/pkg/docker/Dockerfile.php7.0
@@ -2,7 +2,7 @@ FROM debian:stretch-slim
 
 LABEL maintainer="NGINX Docker Maintainers <docker-maint@nginx.com>"
 
-ENV UNIT_VERSION          1.4-1~stretch
+ENV UNIT_VERSION          1.4-2~stretch
 
 RUN set -x \
 	&& apt-get update \
diff --git a/pkg/docker/Dockerfile.python2.7 b/pkg/docker/Dockerfile.python2.7
index 4c34fa79..8bd7d9df 100644
--- a/pkg/docker/Dockerfile.python2.7
+++ b/pkg/docker/Dockerfile.python2.7
@@ -2,7 +2,7 @@ FROM debian:stretch-slim
 
 LABEL maintainer="NGINX Docker Maintainers <docker-maint@nginx.com>"
 
-ENV UNIT_VERSION          1.4-1~stretch
+ENV UNIT_VERSION          1.4-2~stretch
 
 RUN set -x \
 	&& apt-get update \
diff --git a/pkg/docker/Dockerfile.python3.5 b/pkg/docker/Dockerfile.python3.5
index 6dc452ae..53e72e2b 100644
--- a/pkg/docker/Dockerfile.python3.5
+++ b/pkg/docker/Dockerfile.python3.5
@@ -2,7 +2,7 @@ FROM debian:stretch-slim
 
 LABEL maintainer="NGINX Docker Maintainers <docker-maint@nginx.com>"
 
-ENV UNIT_VERSION          1.4-1~stretch
+ENV UNIT_VERSION          1.4-2~stretch
 
 RUN set -x \
 	&& apt-get update \
diff --git a/pkg/docker/Dockerfile.ruby2.3 b/pkg/docker/Dockerfile.ruby2.3
index 45bc9753..84dc10d0 100644
--- a/pkg/docker/Dockerfile.ruby2.3
+++ b/pkg/docker/Dockerfile.ruby2.3
@@ -2,7 +2,7 @@ FROM debian:stretch-slim
 
 LABEL maintainer="NGINX Docker Maintainers <docker-maint@nginx.com>"
 
-ENV UNIT_VERSION          1.4-1~stretch
+ENV UNIT_VERSION          1.4-2~stretch
 
 RUN set -x \
 	&& apt-get update \
diff --git a/pkg/docker/Makefile b/pkg/docker/Makefile
index 140ac5b3..319e14c0 100644
--- a/pkg/docker/Makefile
+++ b/pkg/docker/Makefile
@@ -2,7 +2,7 @@
 
 DEFAULT_VERSION := $(shell grep 'define NXT_VERSION' ../../src/nxt_main.h \
 			| sed -e 's/^.*"\(.*\)".*/\1/')
-DEFAULT_RELEASE := 1
+DEFAULT_RELEASE := 2
 
 VERSION ?= $(DEFAULT_VERSION)
 RELEASE ?= $(DEFAULT_RELEASE)
diff --git a/pkg/rpm/Makefile b/pkg/rpm/Makefile
index ef7f3361..5eb4213d 100644
--- a/pkg/rpm/Makefile
+++ b/pkg/rpm/Makefile
@@ -3,7 +3,7 @@
 DEFAULT_VERSION := $(shell grep 'define NXT_VERSION' ../../src/nxt_main.h \
 			| sed -e 's/^.*"\(.*\)".*/\1/')
 
-DEFAULT_RELEASE := 1
+DEFAULT_RELEASE := 2
 
 VERSION ?= $(DEFAULT_VERSION)
 RELEASE ?= $(DEFAULT_RELEASE)
diff --git a/pkg/rpm/Makefile.go b/pkg/rpm/Makefile.go
index 40ebf8fb..a5735c12 100644
--- a/pkg/rpm/Makefile.go
+++ b/pkg/rpm/Makefile.go
@@ -4,7 +4,7 @@ MODULE_SUFFIX_go=	go
 MODULE_SUMMARY_go=	Go module for NGINX Unit
 
 MODULE_VERSION_go=	$(VERSION)
-MODULE_RELEASE_go=	1
+MODULE_RELEASE_go=	2
 
 MODULE_CONFARGS_go=	go --go-path=%{gopath}
 MODULE_MAKEARGS_go=	go
diff --git a/pkg/rpm/Makefile.perl b/pkg/rpm/Makefile.perl
index 90259e9e..fed66e58 100644
--- a/pkg/rpm/Makefile.perl
+++ b/pkg/rpm/Makefile.perl
@@ -4,7 +4,7 @@ MODULE_SUFFIX_perl=	perl
 MODULE_SUMMARY_perl=	Perl module for NGINX Unit
 
 MODULE_VERSION_perl=	$(VERSION)
-MODULE_RELEASE_perl=	1
+MODULE_RELEASE_perl=	2
 
 MODULE_CONFARGS_perl=	perl
 MODULE_MAKEARGS_perl=	perl
diff --git a/pkg/rpm/Makefile.php b/pkg/rpm/Makefile.php
index b4f093b7..1235777f 100644
--- a/pkg/rpm/Makefile.php
+++ b/pkg/rpm/Makefile.php
@@ -4,7 +4,7 @@ MODULE_SUFFIX_php=	php
 MODULE_SUMMARY_php=	PHP module for NGINX Unit
 
 MODULE_VERSION_php=	$(VERSION)
-MODULE_RELEASE_php=	1
+MODULE_RELEASE_php=	2
 
 MODULE_CONFARGS_php=	php
 MODULE_MAKEARGS_php=	php
diff --git a/pkg/rpm/Makefile.python b/pkg/rpm/Makefile.python
index 0b0eb7bd..e40ba6b8 100644
--- a/pkg/rpm/Makefile.python
+++ b/pkg/rpm/Makefile.python
@@ -4,7 +4,7 @@ MODULE_SUFFIX_python=	python
 MODULE_SUMMARY_python=	Python module for NGINX Unit
 
 MODULE_VERSION_python=	$(VERSION)
-MODULE_RELEASE_python=	1
+MODULE_RELEASE_python=	2
 
 MODULE_CONFARGS_python=	python
 MODULE_MAKEARGS_python=	python
diff --git a/pkg/rpm/Makefile.python27 b/pkg/rpm/Makefile.python27
index 7d15bdd9..c0c354d5 100644
--- a/pkg/rpm/Makefile.python27
+++ b/pkg/rpm/Makefile.python27
@@ -4,7 +4,7 @@ MODULE_SUFFIX_python27=	python2.7
 MODULE_SUMMARY_python27=	Python 2.7 module for NGINX Unit
 
 MODULE_VERSION_python27=	$(VERSION)
-MODULE_RELEASE_python27=	1
+MODULE_RELEASE_python27=	2
 
 MODULE_CONFARGS_python27=	python --config=python2.7-config
 MODULE_MAKEARGS_python27=	python2.7
diff --git a/pkg/rpm/Makefile.python34 b/pkg/rpm/Makefile.python34
index 152007a2..af37dea3 100644
--- a/pkg/rpm/Makefile.python34
+++ b/pkg/rpm/Makefile.python34
@@ -4,7 +4,7 @@ MODULE_SUFFIX_python34=	python3.4
 MODULE_SUMMARY_python34=	Python 3.4 module for NGINX Unit
 
 MODULE_VERSION_python34=	$(VERSION)
-MODULE_RELEASE_python34=	1
+MODULE_RELEASE_python34=	2
 
 MODULE_CONFARGS_python34=	python --config=python3.4-config
 MODULE_MAKEARGS_python34=	python3.4
diff --git a/pkg/rpm/Makefile.python35 b/pkg/rpm/Makefile.python35
index 3f075702..4837fc5d 100644
--- a/pkg/rpm/Makefile.python35
+++ b/pkg/rpm/Makefile.python35
@@ -4,7 +4,7 @@ MODULE_SUFFIX_python35=	python3.5
 MODULE_SUMMARY_python35=	Python 3.5 module for NGINX Unit
 
 MODULE_VERSION_python35=	$(VERSION)
-MODULE_RELEASE_python35=	1
+MODULE_RELEASE_python35=	2
 
 MODULE_CONFARGS_python35=	python --config=python3.5-config
 MODULE_MAKEARGS_python35=	python3.5
diff --git a/pkg/rpm/Makefile.python36 b/pkg/rpm/Makefile.python36
index fd55840e..7d80493a 100644
--- a/pkg/rpm/Makefile.python36
+++ b/pkg/rpm/Makefile.python36
@@ -4,7 +4,7 @@ MODULE_SUFFIX_python36=	python3.6
 MODULE_SUMMARY_python36=	Python 3.6 module for NGINX Unit
 
 MODULE_VERSION_python36=	$(VERSION)
-MODULE_RELEASE_python36=	1
+MODULE_RELEASE_python36=	2
 
 MODULE_CONFARGS_python36=	python --config=python3.6-config
 MODULE_MAKEARGS_python36=	python3.6
diff --git a/pkg/rpm/Makefile.ruby b/pkg/rpm/Makefile.ruby
index 5702fb44..3816d654 100644
--- a/pkg/rpm/Makefile.ruby
+++ b/pkg/rpm/Makefile.ruby
@@ -4,7 +4,7 @@ MODULE_SUFFIX_ruby=	ruby
 MODULE_SUMMARY_ruby=	Ruby module for NGINX Unit
 
 MODULE_VERSION_ruby=	$(VERSION)
-MODULE_RELEASE_ruby=	1
+MODULE_RELEASE_ruby=	2
 
 MODULE_CONFARGS_ruby=	ruby
 MODULE_MAKEARGS_ruby=	ruby