Update CHANGELOG

CHANGELOG.md

@@ -1,6 +1,7 @@
 ## 6.4.4 (unreleased)
 ### Implementation changes and bug fixes
 - [PR #885](https://github.com/rqlite/rqlite/pull/885): Improved responses on HTTP 500.
+- [PR #888](https://github.com/rqlite/rqlite/pull/888): Expose stats about BoltDB on the `status/` endpoint.
 
 ## 6.4.3 (September 8th 2021)
 ### Implementation changes and bug fixes

go.mod

@@ -13,7 +13,6 @@ require (
 	github.com/hashicorp/golang-lru v0.5.4 // indirect
 	github.com/hashicorp/raft v1.3.1
 	github.com/mattn/go-isatty v0.0.14 // indirect
-	github.com/hashicorp/raft-boltdb v0.0.0-20210422161416-485fa74b0b01
 	github.com/mkideal/cli v0.2.7
 	github.com/mkideal/pkg v0.1.3
 	github.com/rqlite/go-sqlite3 v1.22.0