From e42f833fd4ce6cb886dbf594dcb2f3af61918325 Mon Sep 17 00:00:00 2001
From: Anton Kaliaev <anton.kalyaev@gmail.com>
Date: Tue, 12 Mar 2019 16:20:59 +0400
Subject: [PATCH] Merge master back to develop (#3412)

* libs/db: close batch (#3397)

ClevelDB requires closing when WriteBatch is no longer needed, https://godoc.org/github.com/jmhodges/levigo#WriteBatch.Close

Fixes the memory leak in https://github.com/cosmos/cosmos-sdk/issues/3842

* update changelog and bump version to 0.30.2
---
 CHANGELOG.md       | 19 +++++++++++++++++++
 version/version.go |  2 +-
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 42e8761aa..44ecdf388 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,24 @@
 # Changelog
 
+## v0.30.2
+
+*March 10th, 2019*
+
+This release fixes a CLevelDB memory leak. It was happening because we were not
+closing the WriteBatch object after use. See [levigo's
+godoc](https://godoc.org/github.com/jmhodges/levigo#WriteBatch.Close) for the
+Close method. Special thanks goes to @Stumble who both reported an issue in
+[cosmos-sdk](https://github.com/cosmos/cosmos-sdk/issues/3842) and provided a
+fix here.
+
+### BREAKING CHANGES:
+
+* Go API
+- [libs/db] [\#3842](https://github.com/cosmos/cosmos-sdk/issues/3842) Add Close() method to Batch interface (@Stumble)
+
+### BUG FIXES:
+- [libs/db] [\#3842](https://github.com/cosmos/cosmos-sdk/issues/3842) Fix CLevelDB memory leak (@Stumble)
+
 ## v0.30.1
 
 *February 20th, 2019*
diff --git a/version/version.go b/version/version.go
index 1f30978c1..1b0a36ae1 100644
--- a/version/version.go
+++ b/version/version.go
@@ -20,7 +20,7 @@ const (
 	// Must be a string because scripts like dist.sh read this file.
 	// XXX: Don't change the name of this variable or you will break
 	// automation :)
-	TMCoreSemVer = "0.30.1"
+	TMCoreSemVer = "0.30.2"
 
 	// ABCISemVer is the semantic version of the ABCI library
 	ABCISemVer  = "0.15.0"