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-rw-r--r--Documentation/technical/protocol-capabilities.txt15
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/technical/protocol-capabilities.txt b/Documentation/technical/protocol-capabilities.txt
index 2b267c0da6..36ccd14f97 100644
--- a/Documentation/technical/protocol-capabilities.txt
+++ b/Documentation/technical/protocol-capabilities.txt
@@ -176,6 +176,21 @@ agent strings are purely informative for statistics and debugging
purposes, and MUST NOT be used to programmatically assume the presence
or absence of particular features.
+object-format
+-------------
+
+This capability, which takes a hash algorithm as an argument, indicates
+that the server supports the given hash algorithms. It may be sent
+multiple times; if so, the first one given is the one used in the ref
+advertisement.
+
+When provided by the client, this indicates that it intends to use the
+given hash algorithm to communicate. The algorithm provided must be one
+that the server supports.
+
+If this capability is not provided, it is assumed that the only
+supported algorithm is SHA-1.
+
symref
------