diff --git a/build_with/release.md b/build_with/release.md
index 842ecdda..81fb8619 100644
--- a/build_with/release.md
+++ b/build_with/release.md
@@ -1,9 +1,33 @@
-LizGoban 0.3.0-pre3
+LizGoban 0.3.0
 
-### Changes from 0.3.0-pre2
+### To use it on 64bit Windows immediately
 
-* Fix bugs further.
-* Replace KataGo network with a [stronger 10 blocks network](https://github.com/lightvector/KataGo/issues/88) on 2019-12-05.
+Just download the all-in-one package (`LizGoban-*_win_*.zip`), extract it, and double-click `LizGoban *.exe`. You do not need installation, configuration, additional downloads, and so on. Its file size is due to the built-in engines:
+
+* [Leela Zero 0.17](https://github.com/leela-zero/leela-zero/releases/tag/v0.17) (CPU-only) + [15 blocks network](https://github.com/leela-zero/leela-zero/issues/2192) (a4b58a91) on 2019-11-10
+* [KataGo 1.2](https://github.com/lightvector/KataGo/releases/tag/v1.2) (OpenCL) + [10 blocks network](https://github.com/lightvector/KataGo/issues/88) (s4588) on 2019-12-20
+
+You can switch them by [Preset] menu in LizGoban. The first run of KataGo may take a long time (1 hour or more, for example) for its initial tuning.
+
+### To customize it on 64bit Windows (Leela Zero with GPU, KataGo in Japanese rule, ...)
+
+1. Prepare engines (Leela Zero and/or KataGo) by yourself, if necessary.
+2. Download and extract the same all-in-one package as above.
+3. Copy sample/config.json to the same folder as `LizGoban *.exe` and edit it. See README.html for its format.
+
+Note that the built-in KataGo is the official binary. You may need to get another unofficial binary (from [Lizzie](https://github.com/featurecat/lizzie/releases) etc.) to use Japanese rule.
+
+### To use it on other platforms (Mac, Linux, ...) or Windows with more flexible configuration
+
+Download the source code and see `README.md`.
+
+### Major changes from 0.2.0
+
+* Open URL by drag & drop or clipboard.
+* Count stones separately in area counts. (See "KataGo" section in "Help" menu.)
+* Flip & rotate the board randomly in exercise.
+* Replace KataGo network with a stronger one.
+* Fix bugs.
 
 ### Links
 
diff --git a/package.json b/package.json
index a51619cb..46652ba9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "LizGoban",
-  "version": "0.3.0-pre3",
+  "version": "0.3.0",
   "description": "An analysis tool of the game Go with Leela Zero and KataGo",
   "author": "kaorahi <khi@users.osdn.me>",
   "license": "GPL-3.0",