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Backward Compatibility
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Last updated: 2024-02-02 14:36:36
Backward Compatibility
Last updated: 2024-02-02 14:36:36
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Overview

Starting from V5.4.23, the .NET SDK has been compatible with .NET Framework 4.0 and earlier versions. You can run it by adding the COSXML-Compatible.dll library.
Note:
Integration with NuGet might not be supported in compatible environments. For more information about the integration, see Adding Reference.
All advanced APIs (e.g., advanced upload and checkpoint restart download) are not available in COSXML-Compatible.dll.

Adding Reference

Currently, you can only add the .dll file manually as follows:
1. Download COSXML-Compatible.dll at Releases.
2. In your Visual Studio project, click Project > Add Reference > Browse > COSXML-Compatible.dll to add the .NET SDK.

How to Use

You can use it in the same way as the general .NET SDK, except that you need to note the following:
1. If you access COS via HTTPS with .NET Framework 4.0 or an earlier version, issues may occur. If a request over HTTPS fails, you can disable it and try again.
2. The compatible .NET does not support the advanced APIs below. You can access COS with other APIs.
Namespace
Class
Description
COSXML.Transfer
COSXMLCopyTask
Advanced copy API
COSXML.Transfer
COSXMLDownloadTask
Advanced download API
COSXML.Transfer
COSXMLTask
Advanced API abstract class
COSXML.Transfer
COSXMLUploadTask
Advanced upload API
COSXML.Transfer
TransferManager
Transfer task control class

Unknown Issues

The compatible package is still in the prerelease phase. If you encounter any other issues not listed above, please submit an issue on GitHub.
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