From 35f576c770ddb68bf293d2fc330a18531e6372e7 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 14 Jul 2026 14:45:46 +0000
Subject: [PATCH 1/3] Initial plan


From c14c7a066822b365ee1759f1e7bf180834ffff03 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 14 Jul 2026 15:06:50 +0000
Subject: [PATCH 2/3] Upgrade swift-syntax-rs to swift-syntax 603.0.2 / Swift
 6.3.3

---
 MODULE.bazel                                   | 2 +-
 unified/swift-syntax-rs/.swift-version         | 2 +-
 unified/swift-syntax-rs/README.md              | 2 +-
 unified/swift-syntax-rs/swift/Package.resolved | 6 +++---
 unified/swift-syntax-rs/swift/Package.swift    | 4 ++--
 5 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/MODULE.bazel b/MODULE.bazel
index 4c9e3316c018..37a71583198f 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -32,7 +32,7 @@ bazel_dep(name = "rules_dotnet", version = "0.21.5-codeql.1")
 bazel_dep(name = "googletest", version = "1.17.0.bcr.2")
 bazel_dep(name = "rules_rust", version = "0.69.0")
 bazel_dep(name = "rules_swift", version = "4.0.0-rc4")
-bazel_dep(name = "swift-syntax", version = "602.0.0.bcr.2")
+bazel_dep(name = "swift-syntax", version = "603.0.2")
 
 # Needed so we can `use_repo` `local_config_xcode` and
 # `local_config_apple_cc_toolchains` below (referenced by the per-target
diff --git a/unified/swift-syntax-rs/.swift-version b/unified/swift-syntax-rs/.swift-version
index 42cc526d6ca7..7849b73dc743 100644
--- a/unified/swift-syntax-rs/.swift-version
+++ b/unified/swift-syntax-rs/.swift-version
@@ -1 +1 @@
-6.2.4
+6.3.3
diff --git a/unified/swift-syntax-rs/README.md b/unified/swift-syntax-rs/README.md
index 6a714137d8c7..b5cc8bd52069 100644
--- a/unified/swift-syntax-rs/README.md
+++ b/unified/swift-syntax-rs/README.md
@@ -98,7 +98,7 @@ The build does not depend on any particular version manager. You need:
 - **Rust** — pinned to `1.88` by the repo-root [`rust-toolchain.toml`](../../rust-toolchain.toml),
   which `rustup` picks up automatically.
 - **Swift** — pinned to the version in [`.swift-version`](.swift-version)
-  (currently `6.2.4`), used to build `swift-syntax` `602.0.0`. Install it any way
+  (currently `6.3.3`), used to build `swift-syntax` `603.0.2`. Install it any way
   you like — [swift.org](https://www.swift.org/install/) or
   [swiftly](https://www.swift.org/swiftly/) (which reads `.swift-version`), or a
   system package. Just make sure `swift` is on your `PATH` (or point `build.rs`
diff --git a/unified/swift-syntax-rs/swift/Package.resolved b/unified/swift-syntax-rs/swift/Package.resolved
index 9cebf34ec543..dafd46e961b5 100644
--- a/unified/swift-syntax-rs/swift/Package.resolved
+++ b/unified/swift-syntax-rs/swift/Package.resolved
@@ -1,13 +1,13 @@
 {
-  "originHash" : "ad84ad340ee01aa6e38b877dd29e38fa9cb40603dfdefa4e6a69e27f2db208d1",
+  "originHash" : "169957f8fbd882866f8f9f1c68cde813dca3560577939a8ffec366e3d77548e4",
   "pins" : [
     {
       "identity" : "swift-syntax",
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/swiftlang/swift-syntax.git",
       "state" : {
-        "revision" : "4799286537280063c85a32f09884cfbca301b1a1",
-        "version" : "602.0.0"
+        "revision" : "79e4b74a295b6eb74a8b585e3a39d29e70c1dbd1",
+        "version" : "603.0.2"
       }
     }
   ],
diff --git a/unified/swift-syntax-rs/swift/Package.swift b/unified/swift-syntax-rs/swift/Package.swift
index fcd9fcc07bca..a58b7c1a479b 100644
--- a/unified/swift-syntax-rs/swift/Package.swift
+++ b/unified/swift-syntax-rs/swift/Package.swift
@@ -4,7 +4,7 @@ import PackageDescription
 let package = Package(
     name: "SwiftSyntaxFFI",
     platforms: [
-        // swift-syntax 602 requires macOS 10.15; declare it explicitly
+        // swift-syntax 603 requires macOS 10.15; declare it explicitly
         // rather than relying on the swift-tools-version default (10.13).
         .macOS(.v10_15),
     ],
@@ -20,7 +20,7 @@ let package = Package(
     dependencies: [
         .package(
             url: "https://github.com/swiftlang/swift-syntax.git",
-            exact: "602.0.0"
+            exact: "603.0.2"
         )
     ],
     targets: [

From 26e6266c3c8e0b4fedc8bb1c1a9428e07d254a59 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 14 Jul 2026 15:58:55 +0000
Subject: [PATCH 3/3] Pin Swift compiler to 6.3.2 (supported by rules_swift
 4.0.0-rc4)

---
 unified/swift-syntax-rs/.swift-version | 2 +-
 unified/swift-syntax-rs/README.md      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/unified/swift-syntax-rs/.swift-version b/unified/swift-syntax-rs/.swift-version
index 7849b73dc743..91e4a9f26224 100644
--- a/unified/swift-syntax-rs/.swift-version
+++ b/unified/swift-syntax-rs/.swift-version
@@ -1 +1 @@
-6.3.3
+6.3.2
diff --git a/unified/swift-syntax-rs/README.md b/unified/swift-syntax-rs/README.md
index b5cc8bd52069..9b14d4026f37 100644
--- a/unified/swift-syntax-rs/README.md
+++ b/unified/swift-syntax-rs/README.md
@@ -98,7 +98,7 @@ The build does not depend on any particular version manager. You need:
 - **Rust** — pinned to `1.88` by the repo-root [`rust-toolchain.toml`](../../rust-toolchain.toml),
   which `rustup` picks up automatically.
 - **Swift** — pinned to the version in [`.swift-version`](.swift-version)
-  (currently `6.3.3`), used to build `swift-syntax` `603.0.2`. Install it any way
+  (currently `6.3.2`), used to build `swift-syntax` `603.0.2`. Install it any way
   you like — [swift.org](https://www.swift.org/install/) or
   [swiftly](https://www.swift.org/swiftly/) (which reads `.swift-version`), or a
   system package. Just make sure `swift` is on your `PATH` (or point `build.rs`