Merge pull request #12326 from NixOS/release-notes

Nix 2.26 release notes

Author: edolstra

doc/manual/rl-next/ignore-local-registries.md

@@ -130,6 +130,7 @@
   - [Contributing](development/contributing.md)
 - [Releases](release-notes/index.md)
 {{#include ./SUMMARY-rl-next.md}}
+  - [Release 2.26 (2025-01-22)](release-notes/rl-2.26.md)
   - [Release 2.25 (2024-11-07)](release-notes/rl-2.25.md)
   - [Release 2.24 (2024-07-31)](release-notes/rl-2.24.md)
   - [Release 2.23 (2024-06-03)](release-notes/rl-2.23.md)

doc/manual/rl-next/nix-copy-flags.md

@@ -0,0 +1,128 @@
+# Release 2.26.0 (2025-01-22)
+
+- Support for relative path inputs [#10089](https://github.com/NixOS/nix/pull/10089)
+
+  Flakes can now refer to other flakes in the same repository using relative paths, e.g.
+  ```nix
+  inputs.foo.url = "path:./foo";
+  ```
+  uses the flake in the `foo` subdirectory of the referring flake. For more information, see the documentation on [the `path` flake input type](@docroot@/command-ref/new-cli/nix3-flake.md#path-fetcher).
+
+  This feature required a change to the lock file format. Previous Nix versions will not be able to use lock files that have locks for relative path inputs in them.
+
+- Flake lock file generation now ignores local registries [#12019](https://github.com/NixOS/nix/pull/12019)
+
+  When resolving indirect flake references like `nixpkgs` in `flake.nix` files, Nix will no longer use the system and user flake registries. It will only use the global flake registry and overrides given on the command line via `--override-flake`.
+
+  This avoids accidents where users have local registry overrides that map `nixpkgs` to a `path:` flake in the local file system, which then end up in committed lock files pushed to other users.
+
+  In the future, we may remove the use of the registry during lock file generation altogether. It's better to explicitly specify the URL of a flake input. For example, instead of
+  ```nix
+  {
+    outputs = { self, nixpkgs }: { ... };
+  }
+  ```
+  write
+  ```nix
+  {
+    inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
+    outputs = { self, nixpkgs }: { ... };
+  }
+  ```
+
+- `nix copy` supports `--profile` and `--out-link` [#11657](https://github.com/NixOS/nix/pull/11657)
+
+  The `nix copy` command now has flags `--profile` and `--out-link`, similar to `nix build`. `--profile` makes a profile point to the
+  top-level store path, while `--out-link` create symlinks to the top-level store paths.
+
+  For example, when updating the local NixOS system profile from a NixOS system closure on a remote machine, instead of
+  ```
+  # nix copy --from ssh://server $path
+  # nix build --profile /nix/var/nix/profiles/system $path
+  ```
+  you can now do
+  ```
+  # nix copy --from ssh://server --profile /nix/var/nix/profiles/system $path
+  ```
+  The advantage is that this avoids a time window where *path* is not a garbage collector root, and so could be deleted by a concurrent `nix store gc` process.
+
+- `nix-instantiate --eval` now supports `--raw` [#12119](https://github.com/NixOS/nix/pull/12119)
+
+  The `nix-instantiate --eval` command now supports a `--raw` flag, when used
+  the evaluation result must be a string, which is printed verbatim without
+  quotation marks or escaping.
+
+- Improved `NIX_SSHOPTS` parsing for better SSH option handling [#5181](https://github.com/NixOS/nix/issues/5181) [#12020](https://github.com/NixOS/nix/pull/12020)
+
+  The parsing of the `NIX_SSHOPTS` environment variable has been improved to handle spaces and quotes correctly.
+  Previously, incorrectly split SSH options could cause failures in commands like `nix-copy-closure`,
+  especially when using complex SSH invocations such as `-o ProxyCommand="ssh -W %h:%p ..."`.
+
+  This change introduces a `shellSplitString` function to ensure
+  that `NIX_SSHOPTS` is parsed in a manner consistent with shell
+  behavior, addressing common parsing errors.
+
+  For example, the following now works as expected:
+
+  ```bash
+  export NIX_SSHOPTS='-o ProxyCommand="ssh -W %h:%p ..."'
+  ```
+
+  This update improves the reliability of SSH-related operations using `NIX_SSHOPTS` across Nix CLIs.
+
+- Nix is now built using Meson
+
+  As proposed in [RFC 132](https://github.com/NixOS/rfcs/pull/132), Nix's build system now uses Meson/Ninja. The old Make-based build system has been removed.
+
+- Evaluation caching now works for dirty Git workdirs [#11992](https://github.com/NixOS/nix/pull/11992)
+
+# Contributors
+
+This release was made possible by the following 45 contributors:
+
+- Anatoli Babenia [**(@abitrolly)**](https://github.com/abitrolly)
+- Domagoj Mišković [**(@allrealmsoflife)**](https://github.com/allrealmsoflife)
+- Yaroslav Bolyukin [**(@CertainLach)**](https://github.com/CertainLach)
+- bryango [**(@bryango)**](https://github.com/bryango)
+- tomberek [**(@tomberek)**](https://github.com/tomberek)
+- Matej Urbas [**(@mupdt)**](https://github.com/mupdt)
+- elikoga [**(@elikoga)**](https://github.com/elikoga)
+- wh0 [**(@wh0)**](https://github.com/wh0)
+- Félix [**(@picnoir)**](https://github.com/picnoir)
+- Valentin Gagarin [**(@fricklerhandwerk)**](https://github.com/fricklerhandwerk)
+- Gavin John [**(@Pandapip1)**](https://github.com/Pandapip1)
+- Travis A. Everett [**(@abathur)**](https://github.com/abathur)
+- Vladimir Panteleev [**(@CyberShadow)**](https://github.com/CyberShadow)
+- Ilja [**(@suruaku)**](https://github.com/suruaku)
+- Jason Yundt [**(@Jayman2000)**](https://github.com/Jayman2000)
+- Mike Kusold [**(@kusold)**](https://github.com/kusold)
+- Andy Hamon [**(@andrewhamon)**](https://github.com/andrewhamon)
+- Brian McKenna [**(@puffnfresh)**](https://github.com/puffnfresh)
+- Greg Curtis [**(@gcurtis)**](https://github.com/gcurtis)
+- Andrew Poelstra [**(@apoelstra)**](https://github.com/apoelstra)
+- Linus Heckemann [**(@lheckemann)**](https://github.com/lheckemann)
+- Tristan Ross [**(@RossComputerGuy)**](https://github.com/RossComputerGuy)
+- Dominique Martinet [**(@martinetd)**](https://github.com/martinetd)
+- h0nIg [**(@h0nIg)**](https://github.com/h0nIg)
+- Eelco Dolstra [**(@edolstra)**](https://github.com/edolstra)
+- Shahar "Dawn" Or [**(@mightyiam)**](https://github.com/mightyiam)
+- NAHO [**(@trueNAHO)**](https://github.com/trueNAHO)
+- Ryan Hendrickson [**(@rhendric)**](https://github.com/rhendric)
+- the-sun-will-rise-tomorrow [**(@the-sun-will-rise-tomorrow)**](https://github.com/the-sun-will-rise-tomorrow)
+- Connor Baker [**(@ConnorBaker)**](https://github.com/ConnorBaker)
+- Cole Helbling [**(@cole-h)**](https://github.com/cole-h)
+- Jack Wilsdon [**(@jackwilsdon)**](https://github.com/jackwilsdon)
+- ‮rekcäH nitraM‮ [**(@dwt)**](https://github.com/dwt)
+- Martin Fischer [**(@not-my-profile)**](https://github.com/not-my-profile)
+- John Ericson [**(@Ericson2314)**](https://github.com/Ericson2314)
+- Graham Christensen [**(@grahamc)**](https://github.com/grahamc)
+- Sergei Zimmerman [**(@xokdvium)**](https://github.com/xokdvium)
+- Siddarth Kumar [**(@siddarthkay)**](https://github.com/siddarthkay)
+- Sergei Trofimovich [**(@trofi)**](https://github.com/trofi)
+- Robert Hensing [**(@roberth)**](https://github.com/roberth)
+- Mutsuha Asada [**(@momeemt)**](https://github.com/momeemt)
+- Parker Jones [**(@knotapun)**](https://github.com/knotapun)
+- Jörg Thalheim [**(@Mic92)**](https://github.com/Mic92)
+- dbdr [**(@dbdr)**](https://github.com/dbdr)
+- myclevorname [**(@myclevorname)**](https://github.com/myclevorname)
+- Philipp Otterbein

doc/manual/rl-next/nix-instantiate-raw.md

@@ -98,5 +98,39 @@
     "[email protected]": "a-kenji",
     "[email protected]": "0x5a4",
     "[email protected]": "brianmcgee",
-    "[email protected]": "squalus"
+    "[email protected]": "squalus",
+    "[email protected]": "kusold",
+    "37929162+mergify[bot]@users.noreply.github.com": "mergify[bot]",
+    "[email protected]": "suruaku",
+    "[email protected]": "andrewhamon",
+    "[email protected]": "andrewhamon",
+    "[email protected]": "siddarthkay",
+    "[email protected]": "apoelstra",
+    "[email protected]": "martinetd",
+    "[email protected]": "RossComputerGuy",
+    "[email protected]": "bryango",
+    "[email protected]": "allrealmsoflife",
+    "[email protected]": "ConnorBaker",
+    "[email protected]": "momeemt",
+    "[email protected]": "not-my-profile",
+    "[email protected]": "trueNAHO",
+    "[email protected]": "knotapun",
+    "[email protected]": "CertainLach",
+    "[email protected]": "elikoga",
+    "[email protected]": "gcurtis",
+    "[email protected]": "lheckemann",
+    "[email protected]": "mightyiam",
+    "[email protected]": "dwt",
+    "[email protected]": "grahamc",
+    "[email protected]": "wh0",
+    "[email protected]": "mupdt",
+    "[email protected]": "abitrolly",
+    "[email protected]": "h0nIg",
+    "[email protected]": "CyberShadow",
+    "[email protected]": "Pandapip1",
+    "[email protected]": "picnoir",
+    "[email protected]": "myclevorname",
+    "[email protected]": "dbdr",
+    "[email protected]": "jackwilsdon",
+    "[email protected]": "the-sun-will-rise-tomorrow"
 }

doc/manual/rl-next/nix-sshopts-parsing.md

@@ -86,5 +86,37 @@
     "Aleksanaa": "Aleksana",
     "YorikSar": "Yuriy Taraday",
     "kjeremy": "Jeremy Kolb",
-    "artemist": "Artemis Tosini"
+    "artemist": "Artemis Tosini",
+    "the-sun-will-rise-tomorrow": null,
+    "gcurtis": "Greg Curtis",
+    "ConnorBaker": "Connor Baker",
+    "abitrolly": "Anatoli Babenia",
+    "allrealmsoflife": "Domagoj Mi\u0161kovi\u0107",
+    "andrewhamon": "Andy Hamon",
+    "picnoir": "F\u00e9lix",
+    "dbdr": null,
+    "suruaku": "Ilja",
+    "jackwilsdon": "Jack Wilsdon",
+    "mergify[bot]": null,
+    "kusold": "Mike Kusold",
+    "lheckemann": "Linus Heckemann",
+    "h0nIg": null,
+    "grahamc": "Graham Christensen",
+    "not-my-profile": "Martin Fischer",
+    "CyberShadow": "Vladimir Panteleev",
+    "Pandapip1": "Gavin John",
+    "RossComputerGuy": "Tristan Ross",
+    "elikoga": null,
+    "martinetd": "Dominique Martinet",
+    "knotapun": "Parker Jones",
+    "mightyiam": "Shahar \"Dawn\" Or",
+    "siddarthkay": "Siddarth Kumar",
+    "apoelstra": "Andrew Poelstra",
+    "myclevorname": null,
+    "CertainLach": "Yaroslav Bolyukin",
+    "trueNAHO": "NAHO",
+    "wh0": null,
+    "mupdt": "Matej Urbas",
+    "momeemt": "Mutsuha Asada",
+    "dwt": "\u202erekc\u00e4H nitraM\u202e"
 }