diff --git a/doc/manual/source/SUMMARY.md.in b/doc/manual/source/SUMMARY.md.in
index f5d19cc65..3dd4e0977 100644
--- a/doc/manual/source/SUMMARY.md.in
+++ b/doc/manual/source/SUMMARY.md.in
@@ -130,7 +130,7 @@
   - [Contributing](development/contributing.md)
 - [Determinate Nix Releases Notes](release-notes-determinate/index.md)
   - [Changes between Nix and Determinate Nix](release-notes-determinate/changes.md)
-  - [Release 1.0 (2024-11-??)](release-notes-determinate/rl-1.0.md)
+  - [Release 1.0.0 (2025-??-??)](release-notes-determinate/rl-1.0.0.md)
 - [Nix Releases Notes](release-notes/index.md)
 {{#include ./SUMMARY-rl-next.md}}
   - [Release 2.26 (2025-01-22)](release-notes/rl-2.26.md)
diff --git a/doc/manual/src/release-notes-determinate/changes.md b/doc/manual/source/release-notes-determinate/changes.md
similarity index 100%
rename from doc/manual/src/release-notes-determinate/changes.md
rename to doc/manual/source/release-notes-determinate/changes.md
diff --git a/doc/manual/src/release-notes-determinate/index.md b/doc/manual/source/release-notes-determinate/index.md
similarity index 100%
rename from doc/manual/src/release-notes-determinate/index.md
rename to doc/manual/source/release-notes-determinate/index.md
diff --git a/doc/manual/source/release-notes-determinate/rl-1.0.0.md b/doc/manual/source/release-notes-determinate/rl-1.0.0.md
new file mode 100644
index 000000000..16dcc9d3e
--- /dev/null
+++ b/doc/manual/source/release-notes-determinate/rl-1.0.0.md
@@ -0,0 +1,5 @@
+# Release 1.0.0 (2025-??-??)
+
+* Initial release of Determinate Nix.
+
+* Based on [upstream Nix 2.26.2](../release-notes/rl-2.26.md).