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-rw-r--r--tvix/nix-compat/src/nix_daemon/worker_protocol.rs21
1 files changed, 21 insertions, 0 deletions
diff --git a/tvix/nix-compat/src/nix_daemon/worker_protocol.rs b/tvix/nix-compat/src/nix_daemon/worker_protocol.rs
index 5f877c8cee7b..7e3adc0db2ff 100644
--- a/tvix/nix-compat/src/nix_daemon/worker_protocol.rs
+++ b/tvix/nix-compat/src/nix_daemon/worker_protocol.rs
@@ -15,6 +15,27 @@ static WORKER_MAGIC_1: u64 = 0x6e697863; // "nixc"
 static WORKER_MAGIC_2: u64 = 0x6478696f; // "dxio"
 pub static STDERR_LAST: u64 = 0x616c7473; // "alts"
 
+/// | Nix version     | Protocol |
+/// |-----------------|----------|
+/// | 0.11            | 1.02     |
+/// | 0.12            | 1.04     |
+/// | 0.13            | 1.05     |
+/// | 0.14            | 1.05     |
+/// | 0.15            | 1.05     |
+/// | 0.16            | 1.06     |
+/// | 1.0             | 1.10     |
+/// | 1.1             | 1.11     |
+/// | 1.2             | 1.12     |
+/// | 1.3 - 1.5.3     | 1.13     |
+/// | 1.6 - 1.10      | 1.14     |
+/// | 1.11 - 1.11.16  | 1.15     |
+/// | 2.0 - 2.0.4     | 1.20     |
+/// | 2.1 - 2.3.18    | 1.21     |
+/// | 2.4 - 2.6.1     | 1.32     |
+/// | 2.7.0           | 1.33     |
+/// | 2.8.0 - 2.14.1  | 1.34     |
+/// | 2.15.0 - 2.19.4 | 1.35     |
+/// | 2.20.0 - 2.22.0 | 1.37     |
 static PROTOCOL_VERSION: ProtocolVersion = ProtocolVersion::from_parts(1, 37);
 
 /// Max length of a Nix setting name/value. In bytes.