Forum Discussion
Will new ReFS be backward compatible with current ReFS filesystems?
Will existing archived data on Windows Server vNext ReFS be compatible with the native deduplication and compression features of the new ReFS?
They should fix the NORMAL deduplication data corruption first, which I still can reproduce from Server 2022 up the the newest 26040 vNext build. Exact same scenario with Server 2019: No data corruption. https://techcommunity.microsoft.com/t5/windows-server-insiders/server-vnext-25987-26010-and-server-2022-deduplication/m-p/3971855 And now you add ReFS deduplication on top? It is amazing how many new bugs creeped in into newer OS since about 2021. And I mean actual OS bugs, like this dedup corruption, or that you cannot Access local shadowcopies on Windows 11 since May 2022 (unless you stick to Windows 11 21h1). Note that I skip the UI bugs here. This is how Microsoft is shooting its reputation. The OS needs a "full fix run" from Dave Cutler again. Like he did for Windows XP SP0, aka "worst code ever seen".