diff --git a/CHANGELOG-Japanese.md b/CHANGELOG-Japanese.md
index 19ee2308..39e5a405 100644
--- a/CHANGELOG-Japanese.md
+++ b/CHANGELOG-Japanese.md
@@ -1,6 +1,8 @@
 # CHANGELOG
 
-## 2.2.0 [2026/xx/xx] - Dev Release
+## 3.0.0 [2026/09/23] - Release
+
+- 公開 WELA リリースを 3.0.0 に更新し、ASCII バナー直後にバージョンとリリース情報を明示表示します。互換性のため、過去のプロファイル識別子は変更しません。
 
 - バージョン対応 SMB 監査ポリシーの範囲とランタイム上の制限を文書化しました。 (#377)
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9cf0b7c9..ec33d253 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
 # CHANGELOG
 
-## 2.2.0 [2026/xx/xx] - Dev Release
+## 3.0.0 [2026/09/23] - Release
+
+- Set the public WELA release version to 3.0.0 and print explicit version and release information immediately after the ASCII banner. Historical profile identifiers remain unchanged for compatibility.
 
 - Document version-aware SMB audit policy scope and runtime limitations. (Related #377)
 
diff --git a/WELA.ps1 b/WELA.ps1
index f93789cb..c54dac04 100644
--- a/WELA.ps1
+++ b/WELA.ps1
@@ -261,8 +261,8 @@
     [string[]]$PowerShellLoggingModuleName
 )
 
-$WELAVersion     = "2.2.0"
-$WELAReleaseName = "Dev Release"
+$WELAVersion     = "3.0.0"
+$WELAReleaseName = "Release"
 
 # 実行時のカレントディレクトリに依存しないよう、すべてスクリプトの場所を基準にする
 $ScriptRoot = if ($PSScriptRoot) { $PSScriptRoot } else { (Get-Location).Path }
@@ -2149,7 +2149,8 @@ Usage:
 [Console]::OutputEncoding = [System.Text.Encoding]::UTF8
 Write-Host $logo -ForegroundColor Green
 Write-Host ""
-Write-Host "WELA v$WELAVersion - $WELAReleaseName"
+Write-Host "Version: $WELAVersion"
+Write-Host "Release: $WELAReleaseName"
 Write-Host ""
 
 if ($Cmd -ne 'transcript-probe' -and @($PSBoundParameters.Keys | Where-Object { $_ -like 'TranscriptProbe*' }).Count) { throw 'TranscriptProbe options require transcript-probe. No command was run.' }
diff --git a/website/docs/resources/changelog.ja.md b/website/docs/resources/changelog.ja.md
index 2be0d423..6fc6a151 100644
--- a/website/docs/resources/changelog.ja.md
+++ b/website/docs/resources/changelog.ja.md
@@ -3,7 +3,9 @@
 !!! info "情報"
     このページはプロジェクトの [`CHANGELOG.md`](https://github.com/Yamato-Security/WELA/blob/main/CHANGELOG-Japanese.md) を反映したものです。ダウンロードは [リリースページ](https://github.com/Yamato-Security/WELA/releases) をご覧ください。
 
-## 2.2.0 [2026/xx/xx] - Dev Release
+## 3.0.0 [2026/09/23] - Release
+
+- 公開 WELA リリースを 3.0.0 に更新し、ASCII バナー直後にバージョンとリリース情報を明示表示します。互換性のため、過去のプロファイル識別子は変更しません。
 
 - バージョン対応 SMB 監査ポリシーの範囲とランタイム上の制限を文書化しました。 (#377)
 
diff --git a/website/docs/resources/changelog.md b/website/docs/resources/changelog.md
index ed610048..c49bdf69 100644
--- a/website/docs/resources/changelog.md
+++ b/website/docs/resources/changelog.md
@@ -3,7 +3,9 @@
 !!! info
     This page mirrors the project [`CHANGELOG.md`](https://github.com/Yamato-Security/WELA/blob/main/CHANGELOG.md). See the [Releases page](https://github.com/Yamato-Security/WELA/releases) for downloads.
 
-## 2.2.0 [2026/xx/xx] - Dev Release
+## 3.0.0 [2026/09/23] - Release
+
+- Set the public WELA release version to 3.0.0 and print explicit version and release information immediately after the ASCII banner. Historical profile identifiers remain unchanged for compatibility.
 
 - Document version-aware SMB audit policy scope and runtime limitations. (Related #377)