From 252c9341a5a90712e9c3597830f18caca59a5570 Mon Sep 17 00:00:00 2001
From: Luke Boswell <lukewilliamboswell@gmail.com>
Date: Thu, 24 Sep 2026 12:33:00 +1000
Subject: [PATCH 1/2] Upgrade Roc nightly to September 23 for 0.23.0

---
 .github/workflows/ci.yml          | 6 +++---
 .github/workflows/deploy-docs.yml | 2 +-
 .github/workflows/release.yml     | 8 ++++----
 docs/releases/0.23.0.md           | 2 +-
 4 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6c4c07a3..78cb40e6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -39,7 +39,7 @@ jobs:
       - uses: roc-lang/setup-roc@cbe782d6f165b89c87d99f50a59ac4f5f73b4427 # ratchet:roc-lang/setup-roc@v0.3.0
         with:
           version: nightly-new-compiler
-          nightly-tag: nightly-2026-09-22-e494788
+          nightly-tag: nightly-2026-09-23-c7852fd
       - name: Install Rust toolchain
         run: |
           rustup toolchain install "${{ needs.rust-version.outputs.version }}" --profile minimal --target x86_64-unknown-linux-musl --component llvm-tools-preview
@@ -63,7 +63,7 @@ jobs:
       - uses: roc-lang/setup-roc@cbe782d6f165b89c87d99f50a59ac4f5f73b4427 # ratchet:roc-lang/setup-roc@v0.3.0
         with:
           version: nightly-new-compiler
-          nightly-tag: nightly-2026-09-22-e494788
+          nightly-tag: nightly-2026-09-23-c7852fd
       - name: Install Rust toolchain
         shell: bash
         run: |
@@ -108,7 +108,7 @@ jobs:
       - uses: roc-lang/setup-roc@cbe782d6f165b89c87d99f50a59ac4f5f73b4427 # ratchet:roc-lang/setup-roc@v0.3.0
         with:
           version: nightly-new-compiler
-          nightly-tag: nightly-2026-09-22-e494788
+          nightly-tag: nightly-2026-09-23-c7852fd
       - name: Install Rust toolchain
         shell: bash
         run: |
diff --git a/.github/workflows/deploy-docs.yml b/.github/workflows/deploy-docs.yml
index 019d3114..f19ba7a5 100644
--- a/.github/workflows/deploy-docs.yml
+++ b/.github/workflows/deploy-docs.yml
@@ -40,7 +40,7 @@ jobs:
         uses: roc-lang/setup-roc@bd311e2fb815a3d2255f7ee14a922f0b736e020b
         with:
           version: nightly-new-compiler
-          nightly-tag: nightly-2026-09-22-e494788
+          nightly-tag: nightly-2026-09-23-c7852fd
 
       - name: Restore released docs
         env:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 11eea390..d55082fb 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -114,7 +114,7 @@ jobs:
         uses: roc-lang/setup-roc@bd311e2fb815a3d2255f7ee14a922f0b736e020b
         with:
           version: nightly-new-compiler
-          nightly-tag: nightly-2026-09-22-e494788
+          nightly-tag: nightly-2026-09-23-c7852fd
 
       - name: Install Zig
         uses: mlugg/setup-zig@8d6198c65fb0feaa111df26e6b467fea8345e46f
@@ -215,7 +215,7 @@ jobs:
         uses: roc-lang/setup-roc@bd311e2fb815a3d2255f7ee14a922f0b736e020b
         with:
           version: nightly-new-compiler
-          nightly-tag: nightly-2026-09-22-e494788
+          nightly-tag: nightly-2026-09-23-c7852fd
 
       - name: Install Rust
         shell: bash
@@ -260,7 +260,7 @@ jobs:
         uses: roc-lang/setup-roc@bd311e2fb815a3d2255f7ee14a922f0b736e020b
         with:
           version: nightly-new-compiler
-          nightly-tag: nightly-2026-09-22-e494788
+          nightly-tag: nightly-2026-09-23-c7852fd
 
       - name: Create docs staging tree
         run: mkdir -p docs-site
@@ -432,7 +432,7 @@ jobs:
         uses: roc-lang/setup-roc@bd311e2fb815a3d2255f7ee14a922f0b736e020b
         with:
           version: nightly-new-compiler
-          nightly-tag: nightly-2026-09-22-e494788
+          nightly-tag: nightly-2026-09-23-c7852fd
 
       - name: Download release metadata
         uses: actions/download-artifact@v8
diff --git a/docs/releases/0.23.0.md b/docs/releases/0.23.0.md
index c5e5c2d6..d092e868 100644
--- a/docs/releases/0.23.0.md
+++ b/docs/releases/0.23.0.md
@@ -4,7 +4,7 @@
 app [main!] { pf: platform "{{PLATFORM_URL}}" }
 ```
 
-Requires the Roc new-compiler nightly **`nightly-2026-09-22-e494788`** or later.
+Requires the Roc new-compiler nightly **`nightly-2026-09-23-c7852fd`** or later.
 
 ## Write the script in Roc, not bash
 

From 473caa2cc4f3fe9ce4e4682158bb80ebc2e19169 Mon Sep 17 00:00:00 2001
From: Luke Boswell <lukewilliamboswell@gmail.com>
Date: Thu, 24 Sep 2026 12:47:56 +1000
Subject: [PATCH 2/2] Sync Nix devshell with September 23 Roc nightly

---
 flake.lock | 6 +++---
 flake.nix  | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/flake.lock b/flake.lock
index 459eb4f8..4b54df90 100644
--- a/flake.lock
+++ b/flake.lock
@@ -42,11 +42,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1788608813,
-        "narHash": "sha256-ycPYsax6QTQIisQGZHZ+i6mJm6pav35mccWA7MuwGnc=",
+        "lastModified": 1790217927,
+        "narHash": "sha256-fhatlsqelliHOfoT723TYQb8DzxSn698DpobgiARHIM=",
         "owner": "roc-lang",
         "repo": "roc-overlay",
-        "rev": "686a4300d9a5e302582aa105de1335010ad1340d",
+        "rev": "06198bdac7c2a171c93d0a6f0ddeea562867ee1e",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index de748e07..b5c42a44 100644
--- a/flake.nix
+++ b/flake.nix
@@ -75,7 +75,7 @@
           default = pkgs.mkShell {
             packages = [
               # Keep in sync with the nightly pinned in .github/workflows.
-              pkgs.rocpkgs."nightly-2026-09-04-c125b82"
+              pkgs.rocpkgs."nightly-2026-09-23-c7852fd"
               pkgs.python3
               rustToolchain
               pkgs.simple-http-server