Set .version-determinate to 3.5.1

Author: github-actions[bot]

.version-determinate

@@ -1 +1 @@
-3.5.0
+3.5.1

doc/manual/source/SUMMARY.md.in

@@ -128,6 +128,7 @@
   - [Contributing](development/contributing.md)
 - [Determinate Nix Release Notes](release-notes-determinate/index.md)
   - [Changes between Nix and Determinate Nix](release-notes-determinate/changes.md)<!-- next -->
+  - [Release 3.5.1 (2025-05-09)](release-notes-determinate/rl-3.5.1.md)
   - [Release 3.5.0 (2025-05-09)](release-notes-determinate/rl-3.5.0.md)
   - [Release 3.4.2 (2025-05-05)](release-notes-determinate/rl-3.4.2.md)
   - [Release 3.4.0 (2025-04-25)](release-notes-determinate/rl-3.4.0.md)

doc/manual/source/release-notes-determinate/changes.md

@@ -1,6 +1,6 @@
 # Changes between Nix and Determinate Nix
 
-This section lists the differences between upstream Nix 2.28 and Determinate Nix 3.5.0.<!-- differences -->
+This section lists the differences between upstream Nix 2.28 and Determinate Nix 3.5.1.<!-- differences -->
 
 * In Determinate Nix, flakes are stable. You no longer need to enable the `flakes` experimental feature.
 
@@ -19,3 +19,5 @@ This section lists the differences between upstream Nix 2.28 and Determinate Nix
 <!-- Determinate Nix version 3.4.2 -->
 
 <!-- Determinate Nix version 3.5.0 -->
+
+<!-- Determinate Nix version 3.5.1 -->

doc/manual/source/release-notes-determinate/rl-3.5.1.md

@@ -0,0 +1,4 @@
+# Release 3.5.1 (2025-05-09)
+
+* Based on [upstream Nix 2.28.3](../release-notes/rl-2.28.md).
+