diff --git a/CHANGELOG.md b/CHANGELOG.md
index 195e71dc8..642c1e848 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## 0.50.0 (2018-01-15)
+
+* use supervisor mode in sysvinit script for crash recovery #472 (Songmu)
+* include mkr into windows msi #465 (Songmu)
+* pass returned value from command.RunOnce so that `mackerel-agent once… #474 (astj)
+
+
 ## 0.49.0 (2018-01-10)
 
 * cut out `cmdutil` package from `util` and interface adjustment #470 (Songmu)
diff --git a/Makefile b/Makefile
index 0b322d4bf..4978b48d6 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 MACKEREL_AGENT_NAME ?= "mackerel-agent"
 MACKEREL_API_BASE ?= "https://api.mackerelio.com"
-VERSION = 0.49.0
+VERSION = 0.50.0
 CURRENT_REVISION = $(shell git rev-parse --short HEAD)
 ARGS = "-conf=mackerel-agent.conf"
 BUILD_OS_TARGETS = "linux darwin freebsd windows netbsd"
diff --git a/packaging/deb-systemd/debian/changelog b/packaging/deb-systemd/debian/changelog
index ea78bfaa9..1cb563178 100644
--- a/packaging/deb-systemd/debian/changelog
+++ b/packaging/deb-systemd/debian/changelog
@@ -1,3 +1,14 @@
+mackerel-agent (0.50.0-1.systemd) stable; urgency=low
+
+  * use supervisor mode in sysvinit script for crash recovery (by Songmu)
+    <https://github.com/mackerelio/mackerel-agent/pull/472>
+  * include mkr into windows msi (by Songmu)
+    <https://github.com/mackerelio/mackerel-agent/pull/465>
+  * pass returned value from command.RunOnce so that `mackerel-agent once… (by astj)
+    <https://github.com/mackerelio/mackerel-agent/pull/474>
+
+ -- mackerel <mackerel-developers@hatena.ne.jp>  Mon, 15 Jan 2018 10:52:28 +0900
+
 mackerel-agent (0.49.0-1.systemd) stable; urgency=low
 
   * cut out `cmdutil` package from `util` and interface adjustment (by Songmu)
diff --git a/packaging/deb/debian/changelog b/packaging/deb/debian/changelog
index 5b7507eef..b532a6cab 100644
--- a/packaging/deb/debian/changelog
+++ b/packaging/deb/debian/changelog
@@ -1,3 +1,14 @@
+mackerel-agent (0.50.0-1) stable; urgency=low
+
+  * use supervisor mode in sysvinit script for crash recovery (by Songmu)
+    <https://github.com/mackerelio/mackerel-agent/pull/472>
+  * include mkr into windows msi (by Songmu)
+    <https://github.com/mackerelio/mackerel-agent/pull/465>
+  * pass returned value from command.RunOnce so that `mackerel-agent once… (by astj)
+    <https://github.com/mackerelio/mackerel-agent/pull/474>
+
+ -- mackerel <mackerel-developers@hatena.ne.jp>  Mon, 15 Jan 2018 10:52:28 +0900
+
 mackerel-agent (0.49.0-1) stable; urgency=low
 
   * cut out `cmdutil` package from `util` and interface adjustment (by Songmu)
diff --git a/packaging/rpm/mackerel-agent-systemd.spec b/packaging/rpm/mackerel-agent-systemd.spec
index 485ee800a..598ee93f6 100644
--- a/packaging/rpm/mackerel-agent-systemd.spec
+++ b/packaging/rpm/mackerel-agent-systemd.spec
@@ -55,6 +55,11 @@ systemctl enable %{name}.service
 %config(noreplace) %{_sysconfdir}/%{name}/%{name}.conf
 
 %changelog
+* Mon Jan 15 2018 <mackerel-developers@hatena.ne.jp> - 0.50.0
+- use supervisor mode in sysvinit script for crash recovery (by Songmu)
+- include mkr into windows msi (by Songmu)
+- pass returned value from command.RunOnce so that `mackerel-agent once… (by astj)
+
 * Wed Jan 10 2018 <mackerel-developers@hatena.ne.jp> - 0.49.0
 - cut out `cmdutil` package from `util` and interface adjustment (by Songmu)
 - Ignore connection configurations in mackerel-agent.conf (by itchyny)
diff --git a/packaging/rpm/mackerel-agent.spec b/packaging/rpm/mackerel-agent.spec
index af2ba75ba..494648605 100644
--- a/packaging/rpm/mackerel-agent.spec
+++ b/packaging/rpm/mackerel-agent.spec
@@ -62,6 +62,11 @@ fi
 /usr/local/bin/%{name}
 
 %changelog
+* Mon Jan 15 2018 <mackerel-developers@hatena.ne.jp> - 0.50.0
+- use supervisor mode in sysvinit script for crash recovery (by Songmu)
+- include mkr into windows msi (by Songmu)
+- pass returned value from command.RunOnce so that `mackerel-agent once… (by astj)
+
 * Wed Jan 10 2018 <mackerel-developers@hatena.ne.jp> - 0.49.0
 - cut out `cmdutil` package from `util` and interface adjustment (by Songmu)
 - Ignore connection configurations in mackerel-agent.conf (by itchyny)
diff --git a/version.go b/version.go
index 831efc779..06b324420 100644
--- a/version.go
+++ b/version.go
@@ -1,5 +1,5 @@
 package main
 
-const version = "0.49.0"
+const version = "0.50.0"
 
 var gitcommit string