diff --git a/doc/manual/rl-next/allowed-uris-can-now-match-whole-schemes.md b/doc/manual/rl-next/allowed-uris-can-now-match-whole-schemes.md
deleted file mode 100644
index 3cf75a61253..00000000000
--- a/doc/manual/rl-next/allowed-uris-can-now-match-whole-schemes.md
+++ /dev/null
@@ -1,7 +0,0 @@
----
-synopsis: Option `allowed-uris` can now match whole schemes in URIs without slashes
-prs: 9547
----
-
-If a scheme, such as `github:` is specified in the `allowed-uris` option, all URIs starting with `github:` are allowed.
-Previously this only worked for schemes whose URIs used the `://` syntax.
diff --git a/doc/manual/rl-next/cgroup-stats.md b/doc/manual/rl-next/cgroup-stats.md
deleted file mode 100644
index 00853a0f894..00000000000
--- a/doc/manual/rl-next/cgroup-stats.md
+++ /dev/null
@@ -1,8 +0,0 @@
----
-synopsis: Include cgroup stats when building through the daemon
-prs: 9598
----
-
-Nix now also reports cgroup statistics when building through the nix daemon and when doing remote builds using ssh-ng,
-if both sides of the connection are this version of Nix or newer. 
-
diff --git a/doc/manual/rl-next/drv-string-parse-hang.md b/doc/manual/rl-next/drv-string-parse-hang.md
deleted file mode 100644
index 1e041d3e9ca..00000000000
--- a/doc/manual/rl-next/drv-string-parse-hang.md
+++ /dev/null
@@ -1,6 +0,0 @@
----
-synopsis: Fix handling of truncated `.drv` files.
-prs: 9673
----
-
-Previously a `.drv` that was truncated in the middle of a string would case nix to enter an infinite loop, eventually exhausting all memory and crashing.
diff --git a/doc/manual/rl-next/empty-search-regex.md b/doc/manual/rl-next/empty-search-regex.md
deleted file mode 100644
index b193f945680..00000000000
--- a/doc/manual/rl-next/empty-search-regex.md
+++ /dev/null
@@ -1,8 +0,0 @@
-synopsis: Disallow empty search regex in `nix search`
-prs: #9481
-description: {
-
-[`nix search`](@docroot@/command-ref/new-cli/nix3-search.md) now requires a search regex to be passed. To show all packages, use `^`.
-
-}
-
diff --git a/doc/manual/rl-next/env-size-reduction.md b/doc/manual/rl-next/env-size-reduction.md
deleted file mode 100644
index 40a58bc28d9..00000000000
--- a/doc/manual/rl-next/env-size-reduction.md
+++ /dev/null
@@ -1,7 +0,0 @@
----
-synopsis: Reduce eval memory usage and wall time
-prs: 9658
----
-
-Reduce the size of the `Env` struct used in the evaluator by a pointer, or 8 bytes on most modern machines.
-This reduces memory usage during eval by around 2% and wall time by around 3%.
diff --git a/doc/manual/rl-next/eval-system.md b/doc/manual/rl-next/eval-system.md
deleted file mode 100644
index a4696a56ca6..00000000000
--- a/doc/manual/rl-next/eval-system.md
+++ /dev/null
@@ -1,12 +0,0 @@
----
-synopsis: Add new `eval-system` setting
-prs: 4093
----
-
-Add a new `eval-system` option.
-Unlike `system`, it just overrides the value of `builtins.currentSystem`.
-This is more useful than overriding `system`, because you can build these derivations on remote builders which can work on the given system.
-In contrast, `system` also effects scheduling which will cause Nix to build those derivations locally even if that doesn't make sense.
-
-`eval-system` only takes effect if it is non-empty.
-If empty (the default) `system` is used as before, so there is no breakage.
diff --git a/doc/manual/rl-next/git-fetcher.md b/doc/manual/rl-next/git-fetcher.md
deleted file mode 100644
index 54c0d216d1b..00000000000
--- a/doc/manual/rl-next/git-fetcher.md
+++ /dev/null
@@ -1,18 +0,0 @@
----
-synopsis: "Nix now uses `libgit2` for Git fetching"
-prs:
-  - 9240
-  - 9241
-  - 9258
-  - 9480
-issues:
-  - 5313
----
-
-Nix has built-in support for fetching sources from Git, during evaluation and locking; outside the sandbox.
-The existing implementation based on the Git CLI had issues regarding reproducibility and performance.
-
-Most of the original `fetchGit` behavior has been implemented using the `libgit2` library, which gives the fetcher fine-grained control.
-
-Known issues:
-- The `export-subst` behavior has not been reimplemented. [Partial](https://github.com/NixOS/nix/pull/9391#issuecomment-1872503447) support for this Git feature is feasible, but it did not make the release window.
diff --git a/doc/manual/rl-next/hash-format-nix32.md b/doc/manual/rl-next/hash-format-nix32.md
deleted file mode 100644
index 73e6fbb24d8..00000000000
--- a/doc/manual/rl-next/hash-format-nix32.md
+++ /dev/null
@@ -1,23 +0,0 @@
----
-synopsis: Rename hash format `base32` to `nix32`
-prs: 9452
----
-
-Hash format `base32` was renamed to `nix32` since it used a special nix-specific character set for 
-[Base32](https://en.wikipedia.org/wiki/Base32).
-
-## Deprecation: Use `nix32` instead of `base32` as `toHashFormat`
-
-For the builtin `convertHash`, the `toHashFormat` parameter now accepts the same hash formats as the `--to`/`--from`
-parameters of the `nix hash conert` command: `"base16"`, `"nix32"`, `"base64"`, and `"sri"`. The former `"base32"` value
-remains as a deprecated alias for `"base32"`. Please convert your code from:
-
-```nix
-builtins.convertHash { inherit hash hashAlgo; toHashFormat = "base32";}
-```
-
-to
-
-```nix
-builtins.convertHash { inherit hash hashAlgo; toHashFormat = "nix32";}
-```
\ No newline at end of file
diff --git a/doc/manual/rl-next/ifd-eval-store.md b/doc/manual/rl-next/ifd-eval-store.md
deleted file mode 100644
index 835e7e7a340..00000000000
--- a/doc/manual/rl-next/ifd-eval-store.md
+++ /dev/null
@@ -1,8 +0,0 @@
----
-synopsis: import-from-derivation builds the derivation in the build store
-prs: 9661
----
-
-When using `--eval-store`, `import`ing from a derivation will now result in the derivation being built on the build store, i.e. the store specified in the `store` Nix option.
-
-Because the resulting Nix expression must be copied back to the eval store in order to be imported, this requires the eval store to trust the build store's signatures.
diff --git a/doc/manual/rl-next/mounted-ssh-store.md b/doc/manual/rl-next/mounted-ssh-store.md
deleted file mode 100644
index 6df44dbb62c..00000000000
--- a/doc/manual/rl-next/mounted-ssh-store.md
+++ /dev/null
@@ -1,8 +0,0 @@
----
-synopsis: Mounted SSH Store
-issues: 7890
-prs: 7912
----
-
-Introduced the store [`mounted-ssh-ng://`](@docroot@/command-ref/new-cli/nix3-help-stores.md).
-This store allows full access to a Nix store on a remote machine and additionally requires that the store be mounted in the local filesystem.
diff --git a/doc/manual/rl-next/nix-config-show.md b/doc/manual/rl-next/nix-config-show.md
deleted file mode 100644
index 26b961b7686..00000000000
--- a/doc/manual/rl-next/nix-config-show.md
+++ /dev/null
@@ -1,7 +0,0 @@
----
-synopsis: Rename to `nix config show`
-issues: 7672
-prs: 9477
----
-
-`nix show-config` was renamed to `nix config show`, and `nix doctor` was renamed to `nix config check`, to be more consistent with the rest of the command-line interface.
diff --git a/doc/manual/rl-next/nix-env-json-drv-path.md b/doc/manual/rl-next/nix-env-json-drv-path.md
deleted file mode 100644
index 734cefd1b3a..00000000000
--- a/doc/manual/rl-next/nix-env-json-drv-path.md
+++ /dev/null
@@ -1,6 +0,0 @@
----
-synopsis: Fix `nix-env --query --drv-path --json`
-prs: 9257
----
-
-Fixed a bug where `nix-env --query` ignored `--drv-path` when `--json` was set.
diff --git a/doc/manual/rl-next/nix-flake-check-logs-actions.md b/doc/manual/rl-next/nix-flake-check-logs-actions.md
deleted file mode 100644
index 53a7b35eb40..00000000000
--- a/doc/manual/rl-next/nix-flake-check-logs-actions.md
+++ /dev/null
@@ -1,33 +0,0 @@
----
-synopsis: Some stack overflow segfaults are fixed
-issues: 8882
-prs: 8893
----
-
-`nix flake check` now logs the checks it runs and the derivations it evaluates:
-
-```
-$ nix flake check -v
-evaluating flake...
-checking flake output 'checks'...
-checking derivation 'checks.aarch64-darwin.ghciwatch-tests'...
-derivation evaluated to /nix/store/nh7dlvsrhds4cxl91mvgj4h5cbq6skmq-ghciwatch-test-0.3.0.drv
-checking derivation 'checks.aarch64-darwin.ghciwatch-clippy'...
-derivation evaluated to /nix/store/9cb5a6wmp6kf6hidqw9wphidvb8bshym-ghciwatch-clippy-0.3.0.drv
-checking derivation 'checks.aarch64-darwin.ghciwatch-doc'...
-derivation evaluated to /nix/store/8brdd3jbawfszpbs7vdpsrhy80as1il8-ghciwatch-doc-0.3.0.drv
-checking derivation 'checks.aarch64-darwin.ghciwatch-fmt'...
-derivation evaluated to /nix/store/wjhs0l1njl5pyji53xlmfjrlya0wmz8p-ghciwatch-fmt-0.3.0.drv
-checking derivation 'checks.aarch64-darwin.ghciwatch-audit'...
-derivation evaluated to /nix/store/z0mps8dyj2ds7c0fn0819y5h5611033z-ghciwatch-audit-0.3.0.drv
-checking flake output 'packages'...
-checking derivation 'packages.aarch64-darwin.default'...
-derivation evaluated to /nix/store/41abbdyglw5x9vcsvd89xan3ydjf8d7r-ghciwatch-0.3.0.drv
-checking flake output 'apps'...
-checking flake output 'devShells'...
-checking derivation 'devShells.aarch64-darwin.default'...
-derivation evaluated to /nix/store/bc935gz7dylzmcpdb5cczr8gngv8pmdb-nix-shell.drv
-running 5 flake checks...
-warning: The check omitted these incompatible systems: aarch64-linux, x86_64-darwin, x86_64-linux
-Use '--all-systems' to check all.
-```
diff --git a/doc/manual/rl-next/nix-hash-convert.md b/doc/manual/rl-next/nix-hash-convert.md
deleted file mode 100644
index 69db9508ac1..00000000000
--- a/doc/manual/rl-next/nix-hash-convert.md
+++ /dev/null
@@ -1,47 +0,0 @@
----
-synopsis: Add `nix hash convert`
-prs: 9452
----
-
-New [`nix hash convert`](https://github.com/NixOS/nix/issues/8876) sub command with a fast track
-to stabilization! Examples:
-
-- Convert the hash to `nix32`.
-
-  ```bash
-  $ nix hash convert --hash-algo "sha1" --to nix32 "800d59cfcd3c05e900cb4e214be48f6b886a08df"
-  vw46m23bizj4n8afrc0fj19wrp7mj3c0
-  ```
-  `nix32` is a base32 encoding with a nix-specific character set.
-  Explicitly specify the hashing algorithm (optional with SRI hashes) but detect hash format by the length of the input
-  hash.
-- Convert the hash to the `sri` format that includes an algorithm specification:
-  ```bash
-  nix hash convert --hash-algo "sha1" "800d59cfcd3c05e900cb4e214be48f6b886a08df"
-  sha1-gA1Zz808BekAy04hS+SPa4hqCN8=
-  ```
-  or with an explicit `-to` format:
-  ```bash
-  nix hash convert --hash-algo "sha1" --to sri "800d59cfcd3c05e900cb4e214be48f6b886a08df"
-  sha1-gA1Zz808BekAy04hS+SPa4hqCN8=
-  ```
-- Assert the input format of the hash:
-  ```bash
-  nix hash convert --hash-algo "sha256" --from nix32 "ungWv48Bz+pBQUDeXa4iI7ADYaOWF3qctBD/YfIAFa0="
-  error: input hash 'ungWv48Bz+pBQUDeXa4iI7ADYaOWF3qctBD/YfIAFa0=' does not have the expected format '--from nix32'
-  nix hash convert --hash-algo "sha256" --from nix32 "1b8m03r63zqhnjf7l5wnldhh7c134ap5vpj0850ymkq1iyzicy5s"
-  sha256-ungWv48Bz+pBQUDeXa4iI7ADYaOWF3qctBD/YfIAFa0=
-  ```
-
-The `--to`/`--from`/`--hash-algo` parameters have context-sensitive auto-completion.
-
-## Related Deprecations
-
-The following commands are still available but will emit a deprecation warning. Please convert your code to
-`nix hash convert`:
-
-- `nix hash to-base16 $hash1 $hash2`: Use `nix hash convert --to base16 $hash1 $hash2` instead.
-- `nix hash to-base32 $hash1 $hash2`: Use `nix hash convert --to nix32 $hash1 $hash2` instead.
-- `nix hash to-base64 $hash1 $hash2`: Use `nix hash convert --to base64 $hash1 $hash2` instead.
-- `nix hash to-sri $hash1 $hash2`: : Use `nix hash convert --to sri $hash1 $hash2`
-  or even just `nix hash convert $hash1 $hash2` instead.
diff --git a/doc/manual/rl-next/nix-profile-names.md b/doc/manual/rl-next/nix-profile-names.md
deleted file mode 100644
index b7ad4b5d77d..00000000000
--- a/doc/manual/rl-next/nix-profile-names.md
+++ /dev/null
@@ -1,8 +0,0 @@
----
-synopsis: "`nix profile` now allows referring to elements by human-readable name"
-prs: 8678
----
-
-[`nix profile`](@docroot@/command-ref/new-cli/nix3-profile.md) now uses names to refer to installed packages when running [`list`](@docroot@/command-ref/new-cli/nix3-profile-list.md), [`remove`](@docroot@/command-ref/new-cli/nix3-profile-remove.md) or [`upgrade`](@docroot@/command-ref/new-cli/nix3-profile-upgrade.md) as opposed to indices. Profile element names are generated when a package is installed and remain the same until the package is removed.
-
-**Warning**: The `manifest.nix` file used to record the contents of profiles has changed. Nix will automatically upgrade profiles to the new version when you modify the profile. After that, the profile can no longer be used by older versions of Nix.
diff --git a/doc/manual/rl-next/nix-store-add.md b/doc/manual/rl-next/nix-store-add.md
deleted file mode 100644
index 5ef2913b48a..00000000000
--- a/doc/manual/rl-next/nix-store-add.md
+++ /dev/null
@@ -1,7 +0,0 @@
----
-synopsis: Give `nix store add` a `--hash-algo` flag
-prs: 9809
----
-
-Adds a missing feature that was present in the old CLI, and matches our
-plans to have similar flags for `nix hash convert` and `nix hash path`.
diff --git a/doc/manual/rl-next/print-value-in-coercion-error.md b/doc/manual/rl-next/print-value-in-coercion-error.md
deleted file mode 100644
index 046e4e3cf4a..00000000000
--- a/doc/manual/rl-next/print-value-in-coercion-error.md
+++ /dev/null
@@ -1,24 +0,0 @@
----
-synopsis: Coercion errors include the failing value
-issues: #561
-prs: #9754
----
-
-The `error: cannot coerce a <TYPE> to a string` message now includes the value
-which caused the error.
-
-Before:
-
-```
-       error: cannot coerce a set to a string
-```
-
-After:
-
-```
-       error: cannot coerce a set to a string: { aesSupport = «thunk»;
-       avx2Support = «thunk»; avx512Support = «thunk»; avxSupport = «thunk»;
-       canExecute = «thunk»; config = «thunk»; darwinArch = «thunk»; darwinMinVersion
-       = «thunk»; darwinMinVersionVariable = «thunk»; darwinPlatform = «thunk»; «84
-       attributes elided»}
-```
diff --git a/doc/manual/rl-next/print-value-in-type-error.md b/doc/manual/rl-next/print-value-in-type-error.md
deleted file mode 100644
index aaae2275664..00000000000
--- a/doc/manual/rl-next/print-value-in-type-error.md
+++ /dev/null
@@ -1,23 +0,0 @@
----
-synopsis: Type errors include the failing value
-issues: #561
-prs: #9753
----
-
-In errors like `value is an integer while a list was expected`, the message now
-includes the failing value.
-
-Before:
-
-```
-       error: value is a set while a string was expected
-```
-
-After:
-
-```
-       error: expected a string but found a set: { ghc810 = «thunk»;
-       ghc8102Binary = «thunk»; ghc8107 = «thunk»; ghc8107Binary = «thunk»;
-       ghc865Binary = «thunk»; ghc90 = «thunk»; ghc902 = «thunk»; ghc92 = «thunk»;
-       ghc924Binary = «thunk»; ghc925 = «thunk»;  «17 attributes elided»}
-```
diff --git a/doc/manual/rl-next/source-positions-in-errors.md b/doc/manual/rl-next/source-positions-in-errors.md
deleted file mode 100644
index b1a33d83b71..00000000000
--- a/doc/manual/rl-next/source-positions-in-errors.md
+++ /dev/null
@@ -1,42 +0,0 @@
----
-synopsis: Source locations are printed more consistently in errors
-issues: 561
-prs: 9555
----
-
-Source location information is now included in error messages more
-consistently. Given this code:
-
-```nix
-let
-  attr = {foo = "bar";};
-  key = {};
-in
-  attr.${key}
-```
-
-Previously, Nix would show this unhelpful message when attempting to evaluate
-it:
-
-```
-error:
-       … while evaluating an attribute name
-
-       error: value is a set while a string was expected
-```
-
-Now, the error message displays where the problematic value was found:
-
-```
-error:
-       … while evaluating an attribute name
-
-         at bad.nix:4:11:
-
-            3|   key = {};
-            4| in attr.${key}
-             |           ^
-            5|
-
-       error: expected a string but found a set
-```
diff --git a/doc/manual/rl-next/stack-overflow-segfaults.md b/doc/manual/rl-next/stack-overflow-segfaults.md
deleted file mode 100644
index 3d975324830..00000000000
--- a/doc/manual/rl-next/stack-overflow-segfaults.md
+++ /dev/null
@@ -1,32 +0,0 @@
----
-synopsis: Some stack overflow segfaults are fixed
-issues: 9616
-prs: 9617
----
-
-The number of nested function calls has been restricted, to detect and report
-infinite function call recursions. The default maximum call depth is 10,000 and
-can be set with [the `max-call-depth`
-option](@docroot@/command-ref/conf-file.md#conf-max-call-depth).
-
-This fixes segfaults or the following unhelpful error message in many cases:
-
-    error: stack overflow (possible infinite recursion)
-
-Before:
-
-```
-$ nix-instantiate --eval --expr '(x: x x) (x: x x)'
-Segmentation fault: 11
-```
-
-After:
-
-```
-$ nix-instantiate --eval --expr '(x: x x) (x: x x)'
-error: stack overflow
-
-       at «string»:1:14:
-            1| (x: x x) (x: x x)
-             |              ^
-```
diff --git a/doc/manual/rl-next/with-error-reporting.md b/doc/manual/rl-next/with-error-reporting.md
deleted file mode 100644
index d9e07df5216..00000000000
--- a/doc/manual/rl-next/with-error-reporting.md
+++ /dev/null
@@ -1,31 +0,0 @@
----
-synopsis: Better error reporting for `with` expressions
-prs: 9658
----
-
-`with` expressions using non-attrset values to resolve variables are now reported with proper positions.
-
-Previously an incorrect `with` expression would report no position at all, making it hard to determine where the error originated:
-
-```
-nix-repl> with 1; a
-error:
-       … <borked>
-
-         at «none»:0: (source not available)
-
-       error: value is an integer while a set was expected
-```
-
-Now position information is preserved and reported as with most other errors:
-
-```
-nix-repl> with 1; a
-error:
-       … while evaluating the first subexpression of a with expression
-         at «string»:1:1:
-            1| with 1; a
-             | ^
-
-       error: expected a set but found an integer
-```
diff --git a/doc/manual/src/SUMMARY.md.in b/doc/manual/src/SUMMARY.md.in
index 10fe51fc957..695d63dfc38 100644
--- a/doc/manual/src/SUMMARY.md.in
+++ b/doc/manual/src/SUMMARY.md.in
@@ -120,6 +120,7 @@
   - [C++ style guide](contributing/cxx.md)
 - [Release Notes](release-notes/index.md)
 {{#include ./SUMMARY-rl-next.md}}
+  - [Release 2.20 (2024-01-29)](release-notes/rl-2.20.md)
   - [Release 2.19 (2023-11-17)](release-notes/rl-2.19.md)
   - [Release 2.18 (2023-09-20)](release-notes/rl-2.18.md)
   - [Release 2.17 (2023-07-24)](release-notes/rl-2.17.md)
diff --git a/doc/manual/src/contributing/hacking.md b/doc/manual/src/contributing/hacking.md
index 9a7623dc9f6..9e24708594c 100644
--- a/doc/manual/src/contributing/hacking.md
+++ b/doc/manual/src/contributing/hacking.md
@@ -304,7 +304,6 @@ See also the [format documentation](https://github.com/haskell/cabal/blob/master
 ### Build process
 
 Releases have a precomputed `rl-MAJOR.MINOR.md`, and no `rl-next.md`.
-Set `buildUnreleasedNotes = true;` in `flake.nix` to build the release notes on the fly.
 
 ## Branches
 
diff --git a/doc/manual/src/release-notes/rl-2.20.md b/doc/manual/src/release-notes/rl-2.20.md
new file mode 100644
index 00000000000..26869e90a5f
--- /dev/null
+++ b/doc/manual/src/release-notes/rl-2.20.md
@@ -0,0 +1,169 @@
+# Release 2.20.0 (2024-01-29)
+
+- Option `allowed-uris` can now match whole schemes in URIs without slashes [#9547](https://github.com/NixOS/nix/pull/9547)
+
+  If a scheme, such as `github:` is specified in the `allowed-uris` option, all URIs starting with `github:` are allowed.
+  Previously this only worked for schemes whose URIs used the `://` syntax.
+
+- Include cgroup stats when building through the daemon [#9598](https://github.com/NixOS/nix/pull/9598)
+
+  Nix now also reports cgroup statistics when building through the Nix daemon and when doing remote builds using `ssh-ng`,
+  if both sides of the connection are using Nix 2.20 or newer.
+
+- Disallow empty search regex in `nix search` [#9481](https://github.com/NixOS/nix/pull/9481)
+
+  [`nix search`](@docroot@/command-ref/new-cli/nix3-search.md) now requires a search regex to be passed. To show all packages, use `^`.
+
+- Add new `eval-system` setting [#4093](https://github.com/NixOS/nix/pull/4093)
+
+  Add a new `eval-system` option.
+  Unlike `system`, it just overrides the value of `builtins.currentSystem`.
+  This is more useful than overriding `system`, because you can build these derivations on remote builders which can work on the given system.
+  In contrast, `system` also affects scheduling which will cause Nix to build those derivations locally even if that doesn't make sense.
+
+  `eval-system` only takes effect if it is non-empty.
+  If empty (the default) `system` is used as before, so there is no breakage.
+
+- Import-from-derivation builds the derivation in the build store [#9661](https://github.com/NixOS/nix/pull/9661)
+
+  When using `--eval-store`, `import`ing from a derivation will now result in the derivation being built on the build store, i.e. the store specified in the `store` Nix option.
+
+  Because the resulting Nix expression must be copied back to the evaluation store in order to be imported, this requires the evaluation store to trust the build store's signatures.
+
+- Mounted SSH Store [#7890](https://github.com/NixOS/nix/issues/7890) [#7912](https://github.com/NixOS/nix/pull/7912)
+
+  Introduced the store [`mounted-ssh-ng://`](@docroot@/command-ref/new-cli/nix3-help-stores.md).
+  This store allows full access to a Nix store on a remote machine and additionally requires that the store be mounted in the local filesystem.
+
+- Rename `nix show-config` to `nix config show` [#7672](https://github.com/NixOS/nix/issues/7672) [#9477](https://github.com/NixOS/nix/pull/9477)
+
+  `nix show-config` was renamed to `nix config show`, and `nix doctor` was renamed to `nix config check`, to be more consistent with the rest of the command line interface.
+
+- Add command `nix hash convert` [#9452](https://github.com/NixOS/nix/pull/9452)
+
+  This replaces the old `nix hash to-*` commands, which are still available but will emit a deprecation warning. Please convert as follows:
+
+  - `nix hash to-base16 $hash1 $hash2`: Use `nix hash convert --to base16 $hash1 $hash2` instead.
+  - `nix hash to-base32 $hash1 $hash2`: Use `nix hash convert --to nix32 $hash1 $hash2` instead.
+  - `nix hash to-base64 $hash1 $hash2`: Use `nix hash convert --to base64 $hash1 $hash2` instead.
+  - `nix hash to-sri $hash1 $hash2`: : Use `nix hash convert --to sri $hash1 $hash2` or even just `nix hash convert $hash1 $hash2` instead.
+
+- Rename hash format `base32` to `nix32` [#9452](https://github.com/NixOS/nix/pull/9452)
+
+  Hash format `base32` was renamed to `nix32` since it used a special Nix-specific character set for
+  [Base32](https://en.wikipedia.org/wiki/Base32).
+
+- `nix profile` now allows referring to elements by human-readable names [#8678](https://github.com/NixOS/nix/pull/8678)
+
+  [`nix profile`](@docroot@/command-ref/new-cli/nix3-profile.md) now uses names to refer to installed packages when running [`list`](@docroot@/command-ref/new-cli/nix3-profile-list.md), [`remove`](@docroot@/command-ref/new-cli/nix3-profile-remove.md) or [`upgrade`](@docroot@/command-ref/new-cli/nix3-profile-upgrade.md) as opposed to indices. Profile element names are generated when a package is installed and remain the same until the package is removed.
+
+  **Warning**: The `manifest.nix` file used to record the contents of profiles has changed. Nix will automatically upgrade profiles to the new version when you modify the profile. After that, the profile can no longer be used by older versions of Nix.
+
+- Give `nix store add` a `--hash-algo` flag [#9809](https://github.com/NixOS/nix/pull/9809)
+
+  Adds a missing feature that was present in the old CLI, and matches our
+  plans to have similar flags for `nix hash convert` and `nix hash path`.
+
+- Coercion errors include the failing value
+
+  The `error: cannot coerce a <TYPE> to a string` message now includes the value
+  which caused the error.
+
+  Before:
+
+  ```
+  error: cannot coerce a set to a string
+  ```
+
+  After:
+
+  ```
+  error: cannot coerce a set to a string: { aesSupport = «thunk»;
+    avx2Support = «thunk»; avx512Support = «thunk»; avxSupport = «thunk»;
+    canExecute = «thunk»; config = «thunk»; darwinArch = «thunk»; darwinMinVersion
+    = «thunk»; darwinMinVersionVariable = «thunk»; darwinPlatform = «thunk»; «84
+    attributes elided»}
+  ```
+
+- Type errors include the failing value
+
+  In errors like `value is an integer while a list was expected`, the message now
+  includes the failing value.
+
+  Before:
+
+  ```
+  error: value is a set while a string was expected
+  ```
+
+  After:
+
+  ```
+  error: expected a string but found a set: { ghc810 = «thunk»;
+    ghc8102Binary = «thunk»; ghc8107 = «thunk»; ghc8107Binary = «thunk»;
+    ghc865Binary = «thunk»; ghc90 = «thunk»; ghc902 = «thunk»; ghc92 = «thunk»;
+    ghc924Binary = «thunk»; ghc925 = «thunk»;  «17 attributes elided»}
+  ```
+
+- Source locations are printed more consistently in errors [#561](https://github.com/NixOS/nix/issues/561) [#9555](https://github.com/NixOS/nix/pull/9555)
+
+  Source location information is now included in error messages more
+  consistently. Given this code:
+
+  ```nix
+  let
+    attr = {foo = "bar";};
+    key = {};
+  in
+    attr.${key}
+  ```
+
+  Previously, Nix would show this unhelpful message when attempting to evaluate
+  it:
+
+  ```
+  error:
+         … while evaluating an attribute name
+
+         error: value is a set while a string was expected
+  ```
+
+  Now, the error message displays where the problematic value was found:
+
+  ```
+  error:
+         … while evaluating an attribute name
+
+           at bad.nix:4:11:
+
+              3|   key = {};
+              4| in attr.${key}
+               |           ^
+              5|
+
+         error: expected a string but found a set
+  ```
+
+- Some stack overflow segfaults are fixed [#9616](https://github.com/NixOS/nix/issues/9616) [#9617](https://github.com/NixOS/nix/pull/9617)
+
+  The number of nested function calls has been restricted, to detect and report
+  infinite function call recursions. The default maximum call depth is 10,000 and
+  can be set with [the `max-call-depth`
+  option](@docroot@/command-ref/conf-file.md#conf-max-call-depth).
+
+  This replaces the `stack overflow (possible infinite recursion)` message.
+
+- Better error reporting for `with` expressions [#9658](https://github.com/NixOS/nix/pull/9658)
+
+  `with` expressions using non-attrset values to resolve variables are now reported with proper positions, e.g.
+
+  ```
+  nix-repl> with 1; a
+  error:
+         … while evaluating the first subexpression of a with expression
+           at «string»:1:1:
+              1| with 1; a
+               | ^
+
+         error: expected a set but found an integer
+  ```
diff --git a/flake.nix b/flake.nix
index a48e36a2ffd..0bc70768e13 100644
--- a/flake.nix
+++ b/flake.nix
@@ -190,7 +190,6 @@
               boehmgc = final.boehmgc-nix;
               libgit2 = final.libgit2-nix;
               busybox-sandbox-shell = final.busybox-sandbox-shell or final.default-busybox-sandbox-shell;
-              changelog-d = final.changelog-d-nix;
             } // {
               # this is a proper separate downstream package, but put
               # here also for back compat reasons.
@@ -363,7 +362,7 @@
       });
 
       packages = forAllSystems (system: rec {
-        inherit (nixpkgsFor.${system}.native) nix;
+        inherit (nixpkgsFor.${system}.native) nix changelog-d-nix;
         default = nix;
       } // (lib.optionalAttrs (builtins.elem system linux64BitSystems) {
         nix-static = nixpkgsFor.${system}.static.nix;
diff --git a/maintainers/release-notes b/maintainers/release-notes
index 34cd85a5692..2d84485c173 100755
--- a/maintainers/release-notes
+++ b/maintainers/release-notes
@@ -1,7 +1,5 @@
-#!/usr/bin/env nix-shell
-#!nix-shell -i bash ../shell.nix -I nixpkgs=channel:nixos-unstable-small
-#                                   ^^^^^^^
-#                Only used for bash. shell.nix goes to the flake.
+#!/usr/bin/env nix
+#!nix shell .#changelog-d-nix --command bash
 
 # --- CONFIGURATION ---
 
diff --git a/maintainers/release-process.md b/maintainers/release-process.md
index db8b064a514..da6886ea94d 100644
--- a/maintainers/release-process.md
+++ b/maintainers/release-process.md
@@ -27,8 +27,9 @@ release:
 * Compile the release notes by running
 
   ```console
+  $ export VERSION=X.YY
   $ git checkout -b release-notes
-  $ VERSION=X.YY ./maintainers/release-notes
+  $ ./maintainers/release-notes
   ```
 
   where `X.YY` is *without* the patch level, e.g. `2.12` rather than ~~`2.12.0`~~.
diff --git a/package.nix b/package.nix
index 192df90ab04..d1d14d10ea2 100644
--- a/package.nix
+++ b/package.nix
@@ -10,7 +10,6 @@
 , boost
 , brotli
 , bzip2
-, changelog-d
 , curl
 , editline
 , readline
@@ -88,11 +87,6 @@
 # - readline
 , readlineFlavor ? if stdenv.hostPlatform.isWindows then "readline" else "editline"
 
-# Whether to compile `rl-next.md`, the release notes for the next
-# not-yet-released version of Nix in the manul, from the individual
-# change log entries in the directory.
-, buildUnreleasedNotes ? false
-
 # Whether to build the internal API docs, can be done separately from
 # everything else.
 , enableInternalAPIDocs ? false
@@ -218,9 +212,6 @@ in {
   ] ++ lib.optionals (doInstallCheck || enableManual) [
     jq # Also for custom mdBook preprocessor.
   ] ++ lib.optional stdenv.hostPlatform.isLinux util-linux
-    # Official releases don't have rl-next, so we don't need to compile a
-    # changelog
-    ++ lib.optional (!officialRelease && buildUnreleasedNotes) changelog-d
     ++ lib.optional enableInternalAPIDocs doxygen
   ;
 
@@ -378,9 +369,6 @@ in {
       # Nix proper (which they depend on).
       (installUnitTests -> doBuild)
       (doCheck -> doBuild)
-      # We have to build the manual to build unreleased notes, as those
-      # are part of the manual
-      (buildUnreleasedNotes -> enableManual)
       # The build process for the manual currently requires extracting
       # data from the Nix executable we are trying to document.
       (enableManual -> doBuild)
diff --git a/src/libutil/args.cc b/src/libutil/args.cc
index 5187e739625..8996cbe5b00 100644
--- a/src/libutil/args.cc
+++ b/src/libutil/args.cc
@@ -557,7 +557,7 @@ Args::Flag Args::Flag::mkHashFormatFlagWithDefault(std::string &&longName, HashF
     assert(*hf == nix::HashFormat::SRI);
     return Flag{
             .longName = std::move(longName),
-            .description = "hash format ('base16', 'nix32', 'base64', 'sri'). Default: 'sri'",
+            .description = "Hash format (`base16`, `nix32`, `base64`, `sri`). Default: `sri`.",
             .labels = {"hash-format"},
             .handler = {[hf](std::string s) {
                 *hf = parseHashFormat(s);
@@ -569,7 +569,7 @@ Args::Flag Args::Flag::mkHashFormatFlagWithDefault(std::string &&longName, HashF
 Args::Flag Args::Flag::mkHashFormatOptFlag(std::string && longName, std::optional<HashFormat> * ohf) {
     return Flag{
             .longName = std::move(longName),
-            .description = "hash format ('base16', 'nix32', 'base64', 'sri').",
+            .description = "Hash format (`base16`, `nix32`, `base64`, `sri`).",
             .labels = {"hash-format"},
             .handler = {[ohf](std::string s) {
                 *ohf = std::optional<HashFormat>{parseHashFormat(s)};
@@ -589,7 +589,7 @@ Args::Flag Args::Flag::mkHashAlgoFlag(std::string && longName, HashAlgorithm * h
 {
     return Flag{
             .longName = std::move(longName),
-            .description = "hash algorithm ('md5', 'sha1', 'sha256', or 'sha512')",
+            .description = "Hash algorithm (`md5`, `sha1`, `sha256`, or `sha512`).",
             .labels = {"hash-algo"},
             .handler = {[ha](std::string s) {
                 *ha = parseHashAlgo(s);
@@ -602,7 +602,7 @@ Args::Flag Args::Flag::mkHashAlgoOptFlag(std::string && longName, std::optional<
 {
     return Flag{
             .longName = std::move(longName),
-            .description = "hash algorithm ('md5', 'sha1', 'sha256', or 'sha512'). Optional as can also be gotten from SRI hash itself.",
+            .description = "Hash algorithm (`md5`, `sha1`, `sha256`, or `sha512`). Can be omitted for SRI hashes.",
             .labels = {"hash-algo"},
             .handler = {[oha](std::string s) {
                 *oha = std::optional<HashAlgorithm>{parseHashAlgo(s)};
diff --git a/src/nix/hash-convert.md b/src/nix/hash-convert.md
new file mode 100644
index 00000000000..dfb2154436e
--- /dev/null
+++ b/src/nix/hash-convert.md
@@ -0,0 +1,40 @@
+R""(
+
+# Examples
+
+* Convert a hash to `nix32` (a base-32 encoding with a Nix-specific character set).
+
+  ```console
+  $ nix hash convert --hash-algo sha1 --to nix32 800d59cfcd3c05e900cb4e214be48f6b886a08df
+  vw46m23bizj4n8afrc0fj19wrp7mj3c0
+  ```
+
+* Convert a hash to [the `sri` format](https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity) that includes an algorithm specification:
+
+  ```console
+  # nix hash convert --hash-algo sha1 800d59cfcd3c05e900cb4e214be48f6b886a08df
+  sha1-gA1Zz808BekAy04hS+SPa4hqCN8=
+  ```
+
+  or with an explicit `--to` format:
+
+  ```console
+  # nix hash convert --hash-algo sha1 --to sri 800d59cfcd3c05e900cb4e214be48f6b886a08df
+  sha1-gA1Zz808BekAy04hS+SPa4hqCN8=
+  ```
+
+* Assert the input format of the hash:
+
+  ```console
+  # nix hash convert --hash-algo sha256 --from nix32 ungWv48Bz+pBQUDeXa4iI7ADYaOWF3qctBD/YfIAFa0=
+  error: input hash 'ungWv48Bz+pBQUDeXa4iI7ADYaOWF3qctBD/YfIAFa0=' does not have the expected format '--from nix32'
+
+  # nix hash convert --hash-algo sha256 --from nix32 1b8m03r63zqhnjf7l5wnldhh7c134ap5vpj0850ymkq1iyzicy5s
+  sha256-ungWv48Bz+pBQUDeXa4iI7ADYaOWF3qctBD/YfIAFa0=
+  ```
+
+# Description
+
+`nix hash convert` converts hashes from one encoding to another.
+
+)""
diff --git a/src/nix/hash.cc b/src/nix/hash.cc
index 8ab89e43389..4837891c64e 100644
--- a/src/nix/hash.cc
+++ b/src/nix/hash.cc
@@ -150,15 +150,14 @@ struct CmdHashConvert : Command
 
     std::string description() override
     {
-        std::string descr( "convert between different hash formats. Choose from: ");
-        auto iter = hashFormats.begin();
-        assert(iter != hashFormats.end());
-        descr += *iter++;
-        while (iter != hashFormats.end()) {
-            descr += ", " + *iter++;
-        }
+        return "convert between hash formats";
+    }
 
-        return descr;
+    std::string doc() override
+    {
+        return
+          #include "hash-convert.md"
+          ;
     }
 
     Category category() override { return catUtility; }