CHANGELOG.md: describe v0.20.1 change

Change-Id: If201de51ff76c5edf7796edc1fbdfecd6958528f
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/280594
Trust: Hyang-Ah Hana Kim <hyangah@gmail.com>
Run-TryBot: Hyang-Ah Hana Kim <hyangah@gmail.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: kokoro <noreply+kokoro@google.com>
(cherry picked from commit d9eab141b3fdf5868ff9d1fa4d97d63c8605dee0)
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/280692
Reviewed-by: Suzy Mueller <suzmue@golang.org>
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d8a986d..f6cdd2e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## v0.20.1 - 29th Dec, 2020
+
+### Fixes
+- Fixed a bug that caused incorrect fallback to a common `go` installation path when `go` couldn't be found from the regular PATH ([Issue 1065](https://github.com/golang/vscode-go/issues/1065))
+
 ## v0.20.0 - 22nd Dec, 2020
 
 A list of all issues and changes can be found in the [v0.20.0 milestone](https://github.com/golang/vscode-go/milestone/18?closed=1).
diff --git a/package-lock.json b/package-lock.json
index 0c6b5f4..acd2d31 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "go",
-  "version": "0.19.2-dev",
+  "version": "0.21.0-dev",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index ad9512e..c9f4d3c 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "go",
   "displayName": "Go",
-  "version": "0.19.2-dev",
+  "version": "0.21.0-dev",
   "publisher": "golang",
   "description": "Rich Go language support for Visual Studio Code",
   "author": {