# Third-party licences - **BudgieBackup** Last updated: 6 September 2026 · build v0.9.26.249 Budgie Backup is closed-source software, but it is built on components written by other people and published under their own licences. This file names every one of them that is distributed with the setup, says which licence applies, and tells you where to get the full text and - where the licence requires it - the source code. Nothing here changes the terms in `disclaimer.txt`, which cover Budgie Backup itself. These entries cover only the components listed below; where the two differ, the component's own licence governs that component. --- ## Components distributed with Budgie Backup ### 7-Zip (7z.dll) - **Copyright:** © 1999-2026 Igor Pavlov - **Licence:** GNU Lesser General Public Licence (LGPL) version 2.1 or later, with portions under the BSD 3-Clause licence and the unRAR restriction - **Home page and source:** https://www.7-zip.org - **Installed as:** `7z.dll`, in the Budgie Backup program folder - **Used by:** CreateBudgieBackupFile, RunBudgieBackupFile The unRAR restriction applies to the RAR decompression portions of the 7-Zip source: that code may not be used to develop a RAR (WinRAR) compatible archiver. Budgie Backup does not do so. `7z.dll` is loaded dynamically at run time and is not modified. ### SevenZipSharp (Squid-Box fork), version 1.6.2.24 - **Copyright:** © Markovtsev Vadim and contributors; Squid-Box fork contributors - **Licence:** GNU Lesser General Public Licence (LGPL) version 3.0 - **Home page and source:** https://github.com/squid-box/SevenZipSharp - **Installed as:** `SevenZipSharp.dll`, in the Budgie Backup program folder - **Used by:** CreateBudgieBackupFile, RunBudgieBackupFile A managed wrapper around `7z.dll`. Not modified by Budgie Backup. ### AWS SDK for .NET - S3 (AWSSDK.S3), version 4.0.102.1 - **Copyright:** © Amazon.com, Inc. or its affiliates - **Licence:** Apache Licence, Version 2.0 - **Home page and source:** https://github.com/aws/aws-sdk-net - **Used by:** BudgieBackupSync Backblaze B2 offers an S3-compatible API, which is why an Amazon SDK appears in a product that does not use Amazon S3. Budgie Backup sends nothing to Amazon. ### QRCoder, version 1.8.0 - **Copyright:** © Raffael Herrmann - **Licence:** MIT - **Home page and source:** https://github.com/codebude/QRCoder - **Used by:** RunBudgieBackupFile, BudgieBackupSysTray, BudgieBackupSync Generates the QR codes on the remote-monitor and phone-upload screens. ### Microsoft Edge WebView2, version 1.0.3296.44 - **Copyright:** © Microsoft Corporation - **Licence:** Microsoft Software Licence Terms for the WebView2 SDK (proprietary, redistributable) - **Home page:** https://developer.microsoft.com/microsoft-edge/webview2/ - **Used by:** CreateBudgieBackupFile The WebView2 **runtime** itself is a Microsoft component, installed with Windows or by Microsoft's own installer. Budgie Backup does not redistribute it. ### Microsoft .NET runtime and libraries - **Copyright:** © Microsoft Corporation - **Licence:** MIT - **Home page and source:** https://github.com/dotnet/runtime - **Includes:** `System.Management`, `System.Diagnostics.PerformanceCounter`, and - in the self-contained ("Large") installer only - the .NET runtime files themselves The framework-dependent ("Small") installer contains no runtime files; it uses the shared .NET installation already on your PC. --- ## Replacing the LGPL components The LGPL gives you the right to run Budgie Backup with your own version of an LGPL component. Both of them here are separate, dynamically loaded files rather than being compiled into the programs, so no relinking is needed: - **`7z.dll`** - replace the file in the Budgie Backup program folder with your own build of the 7-Zip library. Budgie Backup looks for it beside the executable first. - **`SevenZipSharp.dll`** - replace the file in the same folder with your own build of the library. Budgie Backup does not verify, pin or restrict which build of either library it loads. ## Getting the source code The source for every component above is published by its own authors at the addresses listed, and those are the versions Budgie Backup ships. If you would rather receive the source for the LGPL components (`7z.dll` and `SevenZipSharp.dll`) directly, email **budgiebackup@fearby.com** and a copy corresponding to the version in your installed build will be provided, by download or on a physical medium, for no more than the cost of doing so. This offer covers the LGPL components only. Budgie Backup's own source code is not published. ## Full licence texts The complete text of each licence is published by its steward, and that published version is the authoritative one: - **GNU LGPL v2.1** - https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html - **GNU LGPL v3.0** - https://www.gnu.org/licenses/lgpl-3.0.html (which incorporates the **GNU GPL v3.0** - https://www.gnu.org/licenses/gpl-3.0.html) - **Apache Licence 2.0** - https://www.apache.org/licenses/LICENSE-2.0 - **MIT** - https://opensource.org/licenses/MIT - **BSD 3-Clause** - https://opensource.org/licenses/BSD-3-Clause - **7-Zip's own licence page**, which states the exact combination applying to `7z.dll` - https://www.7-zip.org/license.txt - **Microsoft WebView2 SDK terms** - published by Microsoft at the address above If you cannot reach any of those addresses, email **budgiebackup@fearby.com** and a copy will be sent to you. ## Corrections If a component is missing from this list, attributed to the wrong author, or has its licence misstated, that is a mistake rather than a claim - please report it to **budgiebackup@fearby.com** and it will be corrected. --- _See https://budgiebackup.com for the latest builds; https://fearby.com/utilities/budgiebackup/ now hosts back-end/misc documentation._ Released 13 September 2026 (v0.9.26.257)