diff --git a/CHANGELOG.md b/CHANGELOG.md
index fbb370113d..c781e130ea 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,19 @@
+# v1.0
+
+## Release v1.0.0.rc1 - 2017/11/29
+
+### New features / Enhancements
+
+* Disable tracepoint feature to omit unnecessary insts
+  https://github.com/fluent/fluentd/pull/1764
+
+### Bug fixes
+
+* out_forward: Don't update retry state when failed to get ack response.
+  https://github.com/fluent/fluentd/pull/1686
+* plugin: Combine before_shutdown and shutdown call in one sequence.
+  https://github.com/fluent/fluentd/pull/1763
+
 # v0.14
 
 ## Release v0.14.24 - 2017/11/24
diff --git a/lib/fluent/version.rb b/lib/fluent/version.rb
index 7931bf36d7..d0118c0330 100644
--- a/lib/fluent/version.rb
+++ b/lib/fluent/version.rb
@@ -16,6 +16,6 @@
 
 module Fluent
 
-  VERSION = '0.14.24'
+  VERSION = '1.0.0.rc1'
 
 end