From 12576daf1faf00eb04b63d9a96dccfea20e82c5c Mon Sep 17 00:00:00 2001
From: Jon Chambers <jon@signal.org>
Date: Wed, 26 Mar 2025 11:23:38 -0400
Subject: [PATCH] Retire the (long-unused!) `KEY_EXCHANGE` envelope type

---
 service/src/main/proto/TextSecure.proto | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/service/src/main/proto/TextSecure.proto b/service/src/main/proto/TextSecure.proto
index 847cec476..9ad7cf127 100644
--- a/service/src/main/proto/TextSecure.proto
+++ b/service/src/main/proto/TextSecure.proto
@@ -11,13 +11,13 @@ option java_outer_classname = "MessageProtos";
 
 message Envelope {
   enum Type {
+    reserved 2, 7;
+
     UNKNOWN = 0;
     CIPHERTEXT = 1;
-    KEY_EXCHANGE = 2;
     PREKEY_BUNDLE = 3;
     SERVER_DELIVERY_RECEIPT = 5;
     UNIDENTIFIED_SENDER = 6;
-    reserved 7;
     PLAINTEXT_CONTENT = 8;  // for decryption error receipts
   }