A feedback from discord: https://discord.com/channels/322538954119184384/561007778139734027/1090185427115319386 Some storages like: * https://developers.cloudflare.com/r2/api/s3/api/ * https://www.backblaze.com/b2/docs/s3_compatible_api.html They do not support "x-amz-checksum-algorithm" header But minio recently uses that header with CRC32C by default. So we have to tell minio to use legacy MD5 checksum. I guess this needs to be backported because IIRC we 1.19 and 1.20 are using similar minio package. The minio package code for SendContentMD5 looks like this: <details> <img width="755" alt="image" src="https://user-images.githubusercontent.com/2114189/228186768-4f2f6f67-62b9-4aee-9251-5af714ad9674.png"> </details>
