diff --git a/manifests/j/JetBrains/RustRover/EAP/263.3889.73/JetBrains.RustRover.EAP.installer.yaml b/manifests/j/JetBrains/RustRover/EAP/263.3889.73/JetBrains.RustRover.EAP.installer.yaml
new file mode 100644
index 0000000000000..bc58a3d45be7f
--- /dev/null
+++ b/manifests/j/JetBrains/RustRover/EAP/263.3889.73/JetBrains.RustRover.EAP.installer.yaml
@@ -0,0 +1,35 @@
+# Created with YamlCreate.ps1 Dumplings Mod
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.installer.1.12.0.schema.json
+
+PackageIdentifier: JetBrains.RustRover.EAP
+PackageVersion: 263.3889.73
+InstallerType: nullsoft
+InstallerSwitches:
+  Log: /LOG="<LOGPATH>"
+UpgradeBehavior: uninstallPrevious
+FileExtensions:
+- ipr
+- rs
+ProductCode: RustRover 263.3889.73
+ReleaseDate: 2026-09-04
+Installers:
+- Architecture: x64
+  Scope: user
+  InstallerUrl: https://download.jetbrains.com/rustrover/RustRover-263.3889.73.exe
+  InstallerSha256: 139F24C799272353FAC076F625EC931179D9D1E18F98E1C53AB71CAEEF67CB18
+- Architecture: x64
+  Scope: machine
+  InstallerUrl: https://download.jetbrains.com/rustrover/RustRover-263.3889.73.exe
+  InstallerSha256: 139F24C799272353FAC076F625EC931179D9D1E18F98E1C53AB71CAEEF67CB18
+  ElevationRequirement: elevationRequired
+- Architecture: arm64
+  Scope: user
+  InstallerUrl: https://download.jetbrains.com/rustrover/RustRover-263.3889.73-aarch64.exe
+  InstallerSha256: A96E8D53261F8C013FF0BF99CDE8CCB7147B9CD15FF11A1FC9B0CDC50A42E2C6
+- Architecture: arm64
+  Scope: machine
+  InstallerUrl: https://download.jetbrains.com/rustrover/RustRover-263.3889.73-aarch64.exe
+  InstallerSha256: A96E8D53261F8C013FF0BF99CDE8CCB7147B9CD15FF11A1FC9B0CDC50A42E2C6
+  ElevationRequirement: elevationRequired
+ManifestType: installer
+ManifestVersion: 1.12.0
diff --git a/manifests/j/JetBrains/RustRover/EAP/263.3889.73/JetBrains.RustRover.EAP.locale.en-US.yaml b/manifests/j/JetBrains/RustRover/EAP/263.3889.73/JetBrains.RustRover.EAP.locale.en-US.yaml
new file mode 100644
index 0000000000000..e06f534802f8a
--- /dev/null
+++ b/manifests/j/JetBrains/RustRover/EAP/263.3889.73/JetBrains.RustRover.EAP.locale.en-US.yaml
@@ -0,0 +1,35 @@
+# Created with YamlCreate.ps1 Dumplings Mod
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.defaultLocale.1.12.0.schema.json
+
+PackageIdentifier: JetBrains.RustRover.EAP
+PackageVersion: 263.3889.73
+PackageLocale: en-US
+Publisher: JetBrains s.r.o.
+PublisherUrl: https://www.jetbrains.com/
+PublisherSupportUrl: https://www.jetbrains.com/support/
+PrivacyUrl: https://www.jetbrains.com/legal/docs/privacy/privacy/
+Author: JetBrains s.r.o.
+PackageName: RustRover (EAP)
+PackageUrl: https://www.jetbrains.com/rust/
+License: Freeware
+LicenseUrl: https://www.jetbrains.com/legal/docs/toolbox/user_eap/
+Copyright: Copyright © 2000-2026 JetBrains s.r.o.
+ShortDescription: A brand new JetBrains IDE for Rust Developers
+Description: Try a new feature-rich Rust IDE with timely support, regular updates, and an out-of-the-box experience. Enjoy coding with Rust and focus on what matters.
+Tags:
+- code
+- coding
+- develop
+- development
+- ide
+- programming
+- rust
+ReleaseNotes: |-
+  RustRover 2026.3 EAP 1 build is now available!
+  Here are full release notes.
+ReleaseNotesUrl: https://youtrack.jetbrains.com/articles/RUST-A-411/
+Documentations:
+- DocumentLabel: Documentation
+  DocumentUrl: https://www.jetbrains.com/help/rust/
+ManifestType: defaultLocale
+ManifestVersion: 1.12.0
diff --git a/manifests/j/JetBrains/RustRover/EAP/263.3889.73/JetBrains.RustRover.EAP.locale.zh-CN.yaml b/manifests/j/JetBrains/RustRover/EAP/263.3889.73/JetBrains.RustRover.EAP.locale.zh-CN.yaml
new file mode 100644
index 0000000000000..c07dc789f2973
--- /dev/null
+++ b/manifests/j/JetBrains/RustRover/EAP/263.3889.73/JetBrains.RustRover.EAP.locale.zh-CN.yaml
@@ -0,0 +1,25 @@
+# Created with YamlCreate.ps1 Dumplings Mod
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.locale.1.12.0.schema.json
+
+PackageIdentifier: JetBrains.RustRover.EAP
+PackageVersion: 263.3889.73
+PackageLocale: zh-CN
+PublisherUrl: https://www.jetbrains.com/zh-cn/
+PublisherSupportUrl: https://www.jetbrains.com/zh-cn/support/
+PackageName: RustRover（抢先体验计划）
+PackageUrl: https://www.jetbrains.com/zh-cn/rust/
+License: 免费软件
+ShortDescription: 面向 Rust 开发者的全新 JetBrains IDE
+Description: 尝试功能丰富的新 Rust IDE，获得及时支持、定期更新和开箱即用的体验。使用 Rust 享受编码，专注于重要事项。
+Tags:
+- rust
+- 代码
+- 开发
+- 编程
+- 集成开发环境
+ReleaseNotesUrl: https://youtrack.jetbrains.com/articles/RUST-A-411/
+Documentations:
+- DocumentLabel: 文档
+  DocumentUrl: https://www.jetbrains.com/help/rust/
+ManifestType: locale
+ManifestVersion: 1.12.0
diff --git a/manifests/j/JetBrains/RustRover/EAP/263.3889.73/JetBrains.RustRover.EAP.yaml b/manifests/j/JetBrains/RustRover/EAP/263.3889.73/JetBrains.RustRover.EAP.yaml
new file mode 100644
index 0000000000000..67f5df4fbbed3
--- /dev/null
+++ b/manifests/j/JetBrains/RustRover/EAP/263.3889.73/JetBrains.RustRover.EAP.yaml
@@ -0,0 +1,8 @@
+# Created with YamlCreate.ps1 Dumplings Mod
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.version.1.12.0.schema.json
+
+PackageIdentifier: JetBrains.RustRover.EAP
+PackageVersion: 263.3889.73
+DefaultLocale: en-US
+ManifestType: version
+ManifestVersion: 1.12.0