WIP: broken merge but need a git checkpoint

doc/manual/src/release-notes/rl-2.10.md

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+# Release 2.10 (2022-07-11)
+
+* `nix repl` now takes installables on the command line, unifying the usage
+  with other commands that use `--file` and `--expr`. Primary breaking change
+  is for the common usage of `nix repl '<nixpkgs>'` which can be recovered with
+  `nix repl --file '<nixpkgs>'` or `nix repl --expr 'import <nixpkgs>{}'`.
+
+  This is currently guarded by the `repl-flake` experimental feature.
+
+* A new function `builtins.traceVerbose` is available. It is similar
+  to `builtins.trace` if the `trace-verbose` setting is set to true,
+  and it is a no-op otherwise.
+
+* `nix search` has a new flag `--exclude` to filter out packages.
+
+* On Linux, if `/nix` doesn't exist and cannot be created and you're
+  not running as root, Nix will automatically use
+  `~/.local/share/nix/root` as a chroot store. This enables non-root
+  users to download the statically linked Nix binary and have it work
+  out of the box, e.g.
+
+  ```
+  # ~/nix run nixpkgs#hello
+  warning: '/nix' does not exists, so Nix will use '/home/ubuntu/.local/share/nix/root' as a chroot store
+  Hello, world!
+  ```
+
+* `flake-registry.json` is now fetched from `channels.nixos.org`.
+
+* Nix can now be built with LTO by passing `--enable-lto` to `configure`.
+  LTO is currently only supported when building with GCC.

doc/manual/src/release-notes/rl-2.11.md

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+# Release 2.11 (2022-08-24)
+
+* `nix copy` now copies the store paths in parallel as much as possible (again).
+  This doesn't apply for the `daemon` and `ssh-ng` stores which copy everything
+  in one batch to avoid latencies issues.

doc/manual/src/release-notes/rl-2.9.md

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+# Release 2.9 (2022-05-30)
+
+* Running Nix with the new `--debugger` flag will cause it to start a
+  repl session if an exception is thrown during evaluation, or if
+  `builtins.break` is called.  From there you can inspect the values
+  of variables and evaluate Nix expressions.  In debug mode, the
+  following new repl commands are available:
+
+  ```
+  :env          Show env stack
+  :bt           Show trace stack
+  :st           Show current trace
+  :st <idx>     Change to another trace in the stack
+  :c            Go until end of program, exception, or builtins.break().
+  :s            Go one step
+  ```
+
+  Read more about the debugger
+  [here](https://www.zknotes.com/note/5970).
+
+* Nix now provides better integration with zsh's `run-help`
+  feature. It is now included in the Nix installation in the form of
+  an autoloadable shell function, `run-help-nix`. It picks up Nix
+  subcommands from the currently typed in command and directs the user
+  to the associated man pages.
+
+* `nix repl` has a new build-and-link (`:bl`) command that builds a
+  derivation while creating GC root symlinks.
+
+* The path produced by `builtins.toFile` is now allowed to be imported
+  or read even with restricted evaluation. Note that this will not
+  work with a read-only store.
+
+* `nix build` has a new `--print-out-paths` flag to print the
+  resulting output paths.  This matches the default behaviour of
+  `nix-build`.
+
+* You can now specify which outputs of a derivation `nix` should
+  operate on using the syntax `installable^outputs`,
+  e.g. `nixpkgs#glibc^dev,static` or `nixpkgs#glibc^*`. By default,
+  `nix` will use the outputs specified by the derivation's
+  `meta.outputsToInstall` attribute if it exists, or all outputs
+  otherwise.
+
+* `builtins.fetchTree` (and flake inputs) can now be used to fetch
+  plain files over the `http(s)` and `file` protocols in addition to
+  directory tarballs.

doc/manual/src/release-notes/rl-next.md

@@ -1,20 +1,5 @@
 # Release X.Y (202?-??-??)
 
-* Nix now provides better integration with zsh's run-help feature. It is now
-  included in the Nix installation in the form of an autoloadable shell
-  function, run-help-nix. It picks up Nix subcommands from the currently typed
-  in command and directs the user to the associated man pages.
-
-* `nix repl` has a new build-'n-link (`:bl`) command that builds a derivation
-  while creating GC root symlinks.
-
-* The path produced by `builtins.toFile` is now allowed to be imported or read
-  even with restricted evaluation. Note that this will not work with a
-  read-only store.
-
-* `nix build` has a new `--print-out-paths` flag to print the resulting output paths.
-  This matches the default behaviour of `nix-build`.
-
 * Error traces have been reworked to provide detailed explanations and more
   accurate error locations. A short excerpt of the trace is now shown by
   default when an error occurs.