Fixuprelease notes

Author: grahamc

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

@@ -151,25 +151,8 @@ This section lists the differences between upstream Nix 2.33 and Determinate Nix
 
 <!-- Determinate Nix version 3.15.1 -->
 
-* Bring back the free alpha by @grahamc in [DeterminateSystems/nix-src#305](https://github.com/DeterminateSystems/nix-src/pull/305)
-
-* Replace substitutable hashes with unlilkey to substitute hashes by @grahamc in [DeterminateSystems/nix-src#306](https://github.com/DeterminateSystems/nix-src/pull/306)
-
 <!-- Determinate Nix version 3.15.2 -->
 
-* Continuation of #306: Invalidate remaining hashes by @grahamc in [DeterminateSystems/nix-src#307](https://github.com/DeterminateSystems/nix-src/pull/307)
-
-* Make path inputs lazy by @edolstra in [DeterminateSystems/nix-src#312](https://github.com/DeterminateSystems/nix-src/pull/312)
-
-* Limit the number of active curl handles by @edolstra in [DeterminateSystems/nix-src#315](https://github.com/DeterminateSystems/nix-src/pull/315)
-
-* nix repl: Show Determinate version by @edolstra in [DeterminateSystems/nix-src#316](https://github.com/DeterminateSystems/nix-src/pull/316)
-
-* packaging: fix build with lowdown by @dliberalesso in [DeterminateSystems/nix-src#313](https://github.com/DeterminateSystems/nix-src/pull/313)
-
-* Path fetcher: Handle invalid paths by @edolstra in [DeterminateSystems/nix-src#317](https://github.com/DeterminateSystems/nix-src/pull/317)
-
-* Sync with upstream 2.33.1 by @edolstra in [DeterminateSystems/nix-src#318](https://github.com/DeterminateSystems/nix-src/pull/318)
-
+* Path inputs are now lazy [DeterminateSystems/nix-src#312](https://github.com/DeterminateSystems/nix-src/pull/312)
 
-* @dliberalesso made their first contribution in [DeterminateSystems/nix-src#313](https://github.com/DeterminateSystems/nix-src/pull/313)
+* Improved performance when fetching a lot of dependencies with curl [DeterminateSystems/nix-src#315](https://github.com/DeterminateSystems/nix-src/pull/315)

doc/manual/source/release-notes-determinate/v3.15.2.md

@@ -3,13 +3,40 @@
 * Based on [upstream Nix 2.33.1](../release-notes/rl-2.33.md).
 
 ## What's Changed
-* Continuation of #306: Invalidate remaining hashes by @grahamc in [DeterminateSystems/nix-src#307](https://github.com/DeterminateSystems/nix-src/pull/307)
-* Make path inputs lazy by @edolstra in [DeterminateSystems/nix-src#312](https://github.com/DeterminateSystems/nix-src/pull/312)
-* Limit the number of active curl handles by @edolstra in [DeterminateSystems/nix-src#315](https://github.com/DeterminateSystems/nix-src/pull/315)
-* nix repl: Show Determinate version by @edolstra in [DeterminateSystems/nix-src#316](https://github.com/DeterminateSystems/nix-src/pull/316)
-* packaging: fix build with lowdown by @dliberalesso in [DeterminateSystems/nix-src#313](https://github.com/DeterminateSystems/nix-src/pull/313)
-* Path fetcher: Handle invalid paths by @edolstra in [DeterminateSystems/nix-src#317](https://github.com/DeterminateSystems/nix-src/pull/317)
-* Sync with upstream 2.33.1 by @edolstra in [DeterminateSystems/nix-src#318](https://github.com/DeterminateSystems/nix-src/pull/318)
+
+### Improved performance for users with a lot of dependencies
+
+If you even had the occasion to query your binary cache for over 110,000 store path simultaneously you might have found it rather slow.
+Previously, Nix would enqueue all the downloads at once.
+This appears to trigger quadratic behavior in curl.
+
+Determinate Nix now enqueues a reasonable number of subtitutions once.
+At the same time, we fixed a performance issue in the progress bar with so many dependencies.
+
+PR: [DeterminateSystems/nix-src#315](https://github.com/DeterminateSystems/nix-src/pull/315)
+
+### Lazy trees update: path inputs are now lazy
+
+Previously inputs like `path:///path/to/a/dependency` were eagerly fetched when lazy-trees is enabled.
+In Determinate Nix 3.15.2, path input types are also fetched lazily.
+This change saves time and improves performance for users with path inputs.
+
+PRs:
+* [DeterminateSystems/nix-src#312](https://github.com/DeterminateSystems/nix-src/pull/312)
+* [DeterminateSystems/nix-src#317](https://github.com/DeterminateSystems/nix-src/pull/317)
+
+### `nix repl` now reports the Determinate version
+
+A small change, but now `nix repl` correctly reports the Determinate Nix version:
+
+```
+$ nix repl
+Nix (Determinate Nix 3.15.1) 2.33.0
+Type :? for help.
+nix-repl>
+```
+
+PR: [DeterminateSystems/nix-src#316](https://github.com/DeterminateSystems/nix-src/pull/316)
 
 ## New Contributors
 * @dliberalesso made their first contribution in [DeterminateSystems/nix-src#313](https://github.com/DeterminateSystems/nix-src/pull/313)