CHANGELOG: update Go version, 3.4 patch release

Signed-off-by: Gyuho Lee <leegyuho@amazon.com>

CHANGELOG-3.3.md

@@ -19,6 +19,11 @@ See [code changes](https://github.com/etcd-io/etcd/compare/v3.3.15...v3.3.16) an
 
 - Upgrade [`github.com/coreos/bbolt`](https://github.com/etcd-io/bbolt/releases) from [**`v1.3.1-coreos.6`**](https://github.com/etcd-io/bbolt/releases/tag/v1.3.1-coreos.6) to [**`v1.3.3`**](https://github.com/etcd-io/bbolt/releases/tag/v1.3.3).
 
+### Go
+
+- Compile with Go 1.12.9 including [*Go 1.12.8*](https://groups.google.com/d/msg/golang-announce/65QixT3tcmg/DrFiG6vvCwAJ) security fixes.
+- See [*Go 1.12 release page*](https://golang.org/doc/devel/release.html#go1.12) for more.
+
 
 <hr>
 

CHANGELOG-3.4.md

@@ -2,6 +2,24 @@
 
 Previous change logs can be found at [CHANGELOG-3.3](https://github.com/etcd-io/etcd/blob/master/CHANGELOG-3.3.md).
 
+<hr>
+
+## [v3.4.1](https://github.com/etcd-io/etcd/releases/tag/v3.4.1) (2019-TBD)
+
+See [code changes](https://github.com/etcd-io/etcd/compare/v3.4.0...v3.4.1) and [v3.4 upgrade guide](https://github.com/etcd-io/etcd/blob/master/Documentation/upgrades/upgrade_3_4.md) for any breaking changes.
+
+**Again, before running upgrades from any previous release, please make sure to read change logs below and [v3.4 upgrade guide](https://github.com/etcd-io/etcd/blob/master/Documentation/upgrades/upgrade_3_4.md).**
+
+### etcd server
+
+- Fix [secure server logging message](https://github.com/etcd-io/etcd/commit/8b053b0f44c14ac0d9f39b9b78c17c57d47966eb).
+- Remove [redundant `%` characters in file descriptor warning message](https://github.com/etcd-io/etcd/commit/d5f79adc9cea9ec8c93669526464b0aa19ed417b).
+
+### Go
+
+- Compile with Go 1.12.9 including [*Go 1.12.8*](https://groups.google.com/d/msg/golang-announce/65QixT3tcmg/DrFiG6vvCwAJ) security fixes.
+- See [*Go 1.12 release page*](https://golang.org/doc/devel/release.html#go1.12) for more.
+
 
 <hr>
 

CHANGELOG-3.5.md

@@ -79,6 +79,9 @@ Note that any `etcd_debugging_*` metrics are experimental and subject to change.
   - Deprecated [`/v3beta`](https://github.com/etcd-io/etcd/pull/9298).
   - `curl -L http://localhost:2379/v3beta/kv/put -X POST -d '{"key": "Zm9v", "value": "YmFy"}'` does work in v3.5. Use `curl -L http://localhost:2379/v3/kv/put -X POST -d '{"key": "Zm9v", "value": "YmFy"}'` instead.
 
+### Go
+
+- Require [*Go 1.13+*](https://github.com/etcd-io/etcd/pull/11110).
 
 <hr>