Hi all! Here is my proposal, about how to correctly update qcow2 specification to introduce new field, keeping in mind currently existing images and downstream Qemu instances.
Let's consider discussing from this. I called it v7, as it's a continuation of "[PATCH v6 0/3] qcow2: add zstd cluster compression". Still there are actually only two preparing patches, so, if we like them (may be after some resends) Denis's series should be rebased on these two patches. Vladimir Sementsov-Ogievskiy (2): docs: improve qcow2 spec about extending image header docs: qcow2: introduce compression type feature docs/interop/qcow2.txt | 43 +++++++++++++++++++++++++++++++++++++++--- 1 file changed, 40 insertions(+), 3 deletions(-) -- 2.21.0