diff --git a/doc/manual/source/SUMMARY.md.in b/doc/manual/source/SUMMARY.md.in
index a0f62fbbc..03a18f331 100644
--- a/doc/manual/source/SUMMARY.md.in
+++ b/doc/manual/source/SUMMARY.md.in
@@ -130,6 +130,7 @@
   - [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 3.8.2 (2025-07-12)](release-notes-determinate/rl-3.8.2.md)
   - [Release 3.8.1 (2025-07-11)](release-notes-determinate/rl-3.8.1.md)
   - [Release 3.8.0 (2025-07-10)](release-notes-determinate/rl-3.8.0.md)
   - [Release 3.7.0 (2025-07-03)](release-notes-determinate/rl-3.7.0.md)
diff --git a/doc/manual/source/release-notes-determinate/changes.md b/doc/manual/source/release-notes-determinate/changes.md
index ab7ec98e6..8c5f30770 100644
--- a/doc/manual/source/release-notes-determinate/changes.md
+++ b/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 2.30 and Determinate Nix 3.8.1.<!-- differences -->
+This section lists the differences between upstream Nix 2.30 and Determinate Nix 3.8.2.<!-- differences -->
 
 * In Determinate Nix, flakes are stable. You no longer need to enable the `flakes` experimental feature.
 
@@ -104,3 +104,9 @@ This section lists the differences between upstream Nix 2.30 and Determinate Nix
 <!-- Determinate Nix version 3.8.1 -->
 
 * Address ifdef problem with macOS/BSD sandboxing by @gustavderdrache in [DeterminateSystems/nix-src#142](https://github.com/DeterminateSystems/nix-src/pull/142)
+
+<!-- Determinate Nix version 3.8.2 -->
+
+* ci: don't run the full test suite for x86_64-darwin by @grahamc in [DeterminateSystems/nix-src#144](https://github.com/DeterminateSystems/nix-src/pull/144)
+
+* Try publishing the manual again by @grahamc in [DeterminateSystems/nix-src#145](https://github.com/DeterminateSystems/nix-src/pull/145)
diff --git a/doc/manual/source/release-notes-determinate/rl-3.8.2.md b/doc/manual/source/release-notes-determinate/rl-3.8.2.md
new file mode 100644
index 000000000..638d90f68
--- /dev/null
+++ b/doc/manual/source/release-notes-determinate/rl-3.8.2.md
@@ -0,0 +1,10 @@
+# Release 3.8.2 (2025-07-12)
+
+* Based on [upstream Nix 2.30.0](../release-notes/rl-2.30.md).
+
+## What's Changed
+* ci: don't run the full test suite for x86_64-darwin by @grahamc in [DeterminateSystems/nix-src#144](https://github.com/DeterminateSystems/nix-src/pull/144)
+* Try publishing the manual again by @grahamc in [DeterminateSystems/nix-src#145](https://github.com/DeterminateSystems/nix-src/pull/145)
+
+
+**Full Changelog**: [v3.8.1...v3.8.2](https://github.com/DeterminateSystems/nix-src/compare/v3.8.1...v3.8.2)