Uses the previously merged denoising crate (and fixes a bug in it that
snug in during refactoring) to add denoising to the microphone input. 

Adds automatic volume control for microphone and output.

Prepares for migrating to 16kHz SR mono:
The experimental audio path now picks the samplerate and channel count depending on a setting. It can handle incoming streams with both the current (future legacy) and new samplerate & channel count. These are url-encoded into the livekit track name

Release Notes:

- N/A

There's a mismatch between the URL used here and the one that's referred
to in `build_zed_cloud_url`, which prevents using the script on Windows.

A previous PR changed the script to use `127.0.0.1` instead of
`localhost` because of supposed URL parsing issues, but we were unable
to reproduce those.

Release Notes:

- N/A

Part of https://github.com/zed-industries/zed/issues/7992
Port of https://github.com/zed-industries/zed/pull/37167 to Linux

When using Blade rendering (Linux platforms and self-compiled builds
with the Blade renderer enabled), Zed reads `ZED_FONTS_GAMMA` and
`ZED_FONTS_GRAYSCALE_ENHANCED_CONTRAST` environment variables for the
values to use for font rendering.

`ZED_FONTS_GAMMA` corresponds to
[getgamma](https://learn.microsoft.com/en-us/windows/win32/api/dwrite/nf-dwrite-idwriterenderingparams-getgamma)
values.
Allowed range [1.0, 2.2], other values are clipped.
Default: 1.8

`ZED_FONTS_GRAYSCALE_ENHANCED_CONTRAST` corresponds to
[getgrayscaleenhancedcontrast](https://learn.microsoft.com/en-us/windows/win32/api/dwrite_1/nf-dwrite_1-idwriterenderingparams1-getgrayscaleenhancedcontrast)
values.
Allowed range: [0.0, ..), other values are clipped.
Default: 1.0

Screenshots (left is Nightly, right is the new code):

* Non-lodpi display

With the defaults:

<img width="2560" height="1600" alt="image"
src="https://github.com/user-attachments/assets/987168b4-3f5f-45a0-a740-9c0e49efbb9c"
/>


With `env ZED_FONTS_GRAYSCALE_ENHANCED_CONTRAST=7777`: 

<img width="2560" height="1600" alt="image"
src="https://github.com/user-attachments/assets/893bc2c7-9db4-4874-8ef6-3425d079db63"
/>


Lodpi, default settings:
<img width="3830" height="2160" alt="image"
src="https://github.com/user-attachments/assets/ec009e00-69b3-4c01-a18c-8286e2015e74"
/>

Lodpi, font size 7:
<img width="3830" height="2160" alt="image"
src="https://github.com/user-attachments/assets/f33e3df6-971b-4e18-b425-53d3404b19be"
/>


Release Notes:

- Implement perceptual gamma / contrast correction for Linux font
rendering

---------

Co-authored-by: localcc <work@localcc.cc>

Release Notes:

- N/A

Co-authored-by: Bennet Bo Fenner <bennetbo@gmx.de>
Co-authored-by: Oleksiy Syvokon <oleksiy.syvokon@gmail.com>

Closes https://github.com/zed-industries/zed/issues/37472

Release Notes:

- Fixed an issue in Text Threads where it was using `default_model` even
in case `thread_summary_model` was set.

---------

Signed-off-by: Umesh Yadav <git@umesh.dev>

- Map path lookup and internal failures to acp::Error 
- Return INVALID_PARAMS for reads beyond EOF

Release Notes:

- acp: Return more informative error types from `read_text_file` to
agents

Closes #38382 

Release Notes:

- N/A

Release Notes:

- Fixed potentially temporarily hanging on macOS when updating the app

This now uses the default zed icon for file associations as our own icon
svgs are black/white shapes which are not suitable to set as an icon in
a file explorer.

Closes #36286

Release Notes:

- N/A

Inspired by the recent anchor assertions, this asserts that the produced
selections are always ordered at various resolutions stages, this is an
invariant within `SelectionsCollection` but something breaks it
somewhere causing us to seek cursors backwards which panics.

Related to ZED-13X

Release Notes:

- N/A

Just small code changes, to deduplicate prefix handling.

Release Notes:

- N/A

The previous validation was too strict and didn't permit reading empty
files.

Addresses: https://github.com/google-gemini/gemini-cli/issues/9280

Release Notes:

- acp: Fix `read_text_file` returning errors for empty files

# Summary 

Today, Zed uses Mold on Linux, but Wild can be significantly faster. 

On my machine, Wild is 14% faster at a whole-tree clean build, 20%
faster on an incremental build with a minimal change, and makes no
measurable effect on runtime performance of tests.

However, Wild's page says it's not yet ready for production, so it seems
to early to switch for production and CI builds.

This PR keeps using Mold in CI and lets developers choose in their own
config what linker to use. (The downside of this is that after landing
this change, developers will have to do some local config or it will
fall back to the default linker which may be slower.)

[Wild 0.6 is out, and their announcement has some
benchmarks](https://davidlattimore.github.io/posts/2025/09/23/wild-update-0.6.0.html).

cc @davidlattimore from Wild, just fyi

# Tasks

- [x] Measure Wild build, incremental build, and runtime performance in
different scenarios
- [x] Remove the Linux linker config from `.cargo/config.toml` in the
tree
- [x] Test rope benchmarks etc
- [x] Set the linker to Mold in CI 
- [x] Add instructions to use Wild or Mold into `linux.md`
- [x] Add a script to download Wild
- [x] Measure binary size
- [x] Recommend Wild from `scripts/linux`

# Benchmarks 

| | wild 0.6 (rust 1.89) | mold 2.37.1 (1.89) | lld (rust 1.90) | wild
advantage |
| -- | -- | -- | -- | -- |
| clean workspace build | 176s | 184s | 182s | 5% faster than mold |
| nextest run workspace after build | 137s | 142s | 137s | in the noise?
|
| incremental rebuild | 3.9s | 5.0s | 6.6s | 22% faster than mold | 

I didn't observe any apparent significant change in runtime performance
or binary size, or in the in-tree microbenchmarks.

Release Notes:

- N/A

---------

Co-authored-by: Mateusz Mikuła <oss@mateuszmikula.dev>

<img width="1211" height="238" alt="image"
src="https://github.com/user-attachments/assets/d847fabe-0e00-474c-ad79-cb4da221b319"
/>

At least on Windows, "git terminal" and PowerShell set the header, which
is not very useful but occupies space and sometimes confuses users:


![telegram-cloud-photo-size-2-5377720447174575846-x](https://github.com/user-attachments/assets/a889fa44-e879-4b3d-956b-0af959113e1e)

Release Notes:

- Disable terminal breadcrumbs by default. Set
`terminal.toolbar.breadcrumbs` to `true` to re-enable.

Co-authored-by: Finn Evers <finn@zed.dev>

This PR removes the `billing-v2` feature flag, now that the new pricing
is launched.

Release Notes:

- N/A

This section [shows up
twice](https://zed.dev/docs/configuring-zed#global-lsp-settings) in the
documentation.

<img width="701" height="1269" alt="image"
src="https://github.com/user-attachments/assets/4d930676-5cae-43c8-83d4-6406c27d149c"
/>

Release Notes:

- N/A

Signed-off-by: Remy Suen <remy.suen@docker.com>

# Why

In Git Panel, it felt to me that repo and branch separator can be
slightly demphasized (since it is not-interactable) and separated a bit
more from the repo and branch popover triggers.

# How

Use `icon_muted` color for the separator (happy to know if this is an
abuse of the UI styleguide 😄), add one pixel horizontal spacing around
the `/` character.

Release Notes:

- Improved appearance of repo and branch separator in Git Commit Panel

# Test plan

I have tested the change locally and compared the UI before and after to
make sure it feels right.

### Before

<img width="466" height="196" alt="Screenshot 2025-09-18 at 20 25 46"
src="https://github.com/user-attachments/assets/7bfcd1a4-8d16-4e75-8660-9cbfa3952848"
/>

### After

<img width="466" height="196" alt="Screenshot 2025-09-18 at 20 25 12"
src="https://github.com/user-attachments/assets/100d3599-ecc6-473f-b270-a71005b41494"
/>

---------

Co-authored-by: Danilo Leal <daniloleal09@gmail.com>

Added blank line in front of 2 image tags so markdown renders correctly
in zed. (Previously, images were skipped. They are also skipped in zed
if there are leading spaces in front of img tag.)

Updated text in 3 alt tags.

Fixed 1 typo.

Release Notes:

- N/A

Tiny little improvements opportunities I noticed today while browsing
the docs.

Release Notes:

- N/A

Release Notes:

- N/A

Co-authored-by: Agus <agus@zed.dev>

Closes #37601 

Regressed in https://github.com/zed-industries/zed/pull/36469. 

Edit: Original issue https://github.com/zed-industries/zed/issues/25744
is fixed for Zeta in this PR. For Copilot, it will be covered in a
follow-up. In the case of Copilot, even after discarding, we still get a
prediction on suggest, which is a bug.

Release Notes:

- Fixed issue where predict edit at cursor didn't work when
`show_edit_predictions` is `false`.

Release Notes:

- N/A

Co-authored-by: Max Brunsfeld <maxbrunsfeld@gmail.com>

Release Notes:

- N/A

Closes https://github.com/zed-industries/zed/issues/38690
Closes #37353

### Background

On Windows, paths are normally separated by `\`, unlike mac and linux
where they are separated by `/`. When editing code in a project that
uses a different path style than your local system (e.g. remoting from
Windows to Linux, using WSL, and collaboration between windows and unix
users), the correct separator for a path may differ from the "native"
separator.

Previously, to work around this, Zed converted paths' separators in
numerous places. This was applied to both absolute and relative paths,
leading to incorrect conversions in some cases.

### Solution

Many code paths in Zed use paths that are *relative* to either a
worktree root or a git repository. This PR introduces a dedicated type
for these paths called `RelPath`, which stores the path in the same way
regardless of host platform, and offers `Path`-like manipulation APIs.
RelPath supports *displaying* the path using either separator, so that
we can display paths in a style that is determined at runtime based on
the current project.

The representation of absolute paths is left untouched, for now.
Absolute paths are different from relative paths because (except in
contexts where we know that the path refers to the local filesystem)
they should generally be treated as opaque strings. Currently we use a
mix of types for these paths (std::path::Path, String, SanitizedPath).

Release Notes:

- N/A

---------

Co-authored-by: Cole Miller <cole@zed.dev>
Co-authored-by: Piotr Osiewicz <24362066+osiewicz@users.noreply.github.com>
Co-authored-by: Peter Tripp <petertripp@gmail.com>
Co-authored-by: Smit Barmase <heysmitbarmase@gmail.com>
Co-authored-by: Lukas Wirth <me@lukaswirth.dev>

Release Notes:

- Only allow single characters in the whitespace map

Release Notes:

- N/A

Release Notes:

- Fixed a panic when hovering a string literal ending with an emoji

Closes #ISSUE

Updates the settings editor to collect all known settings files from the
settings store, in order to show them in the UI. Additionally adds a
fake worktree instantiation in the settings UI example binary in order
to have more than one file available when testing.

Release Notes:

- N/A *or* Added/Fixed/Improved ...

On macOS, traditionally when a keyboard shortcut is activated, the menu
in the menu bar flashes to indicate that the action was recognised.

<img width="289" height="172" alt="image"
src="https://github.com/user-attachments/assets/a03ecd2f-f159-4f82-b4fd-227f34393703"
/>

This PR adds this functionality to GPUI, where when a keybind is pressed
that triggers an action in the menu, the menu flashes.

Release Notes:

- N/A

This makes rust-analyzer not consider the function for project symbols,
meaning searching for tests wont show two entries.

Release Notes:

- N/A *or* Added/Fixed/Improved ...

Release Notes:

- N/A

Co-authored-by: Agus Zubiaga <agus@zed.dev>

Closes #ISSUE

Release Notes:

- N/A *or* Added/Fixed/Improved ...

As of stable 206.0, the `agent.message_editor_min_lines` setting is
fully available, so removing the docs note that said it was only for
Preview.

Release Notes:

- N/A

This reverts commit 9e7302520ec93a96a9b275a817f083b96620148e.

I run into an infinite hang in Zed nightly and used instruments and
activity monitor to sample what was going on. The root cause seemed to
be the unwrap_unchecked introduced in reverted PR.

Release Notes:

- N/A

Release Notes:

- N/A

Closes https://github.com/zed-industries/zed/issues/38686

Release Notes:

- Switched to "standard" as a default line height in the terminal

Closes #ISSUE

Release Notes:

- N/A

---------

Co-authored-by: Katie Geer <katie@zed.dev>
Co-authored-by: Marshall Bowers <git@maxdeviant.com>
Co-authored-by: David Kleingeld <davidsk@zed.dev>

Release Notes:

- N/A

Release Notes:

- N/A

---------

Co-authored-by: Anthony <hello@anthonyeid.me>
Co-authored-by: Ben Kunkle <ben@zed.dev>
Co-authored-by: Anthony <anthony@zed.dev>
Co-authored-by: Ben Kunkle <ben.kunkle@gmail.com>

Just making it more consistent with other pickers—button actions
justified to the right and timestamp directly in the list item to avoid
as much as possible relevant information tucked away in a tooltip where
using the keyboard will mostly be the main mean of interaction.

<img width="500" height="310" alt="Screenshot 2025-09-24 at 10  41@2x"
src="https://github.com/user-attachments/assets/0bd478da-d1a6-48fe-ade7-a4759d175c60"
/>


Release Notes:

- N/A

Split up provider, prediction, and global into modules.

Release Notes:

- N/A

The new cloud endpoint returns structured edits, but they may include
more of the input excerpt than what we want to display in the preview,
so we compute a smaller diff on the client side against the snapshot.

Release Notes:

- N/A

This reduces the size of cursor by a usize when the summary does not
require a context making Cursor usages and constructions slightly more
efficient.

This change is a bit annoying though, as Rust has no means of
specializing, so this uses a `ContextlessSummary` trait with a blanket
impl while turning the `Context` into a GAT `Context<'a>`. This means
`Summary` implies are a bit more verbose now while contextless ones are
slimmer. It does come with the downside that the lifetime in the GAT is
always considered invariant, so some lifetime splitting occurred due to
that.


 ```
push/4096               time:   [352.65 µs 360.87 µs 367.80 µs]
                        thrpt:  [10.621 MiB/s 10.825 MiB/s 11.077 MiB/s]
                 change:
time: [-2.6633% -1.3640% -0.0561%] (p = 0.05 < 0.05)
                        thrpt:  [+0.0561% +1.3828% +2.7361%]
                        Change within noise threshold.
Found 16 outliers among 100 measurements (16.00%)
  7 (7.00%) low severe
  3 (3.00%) low mild
  2 (2.00%) high mild
  4 (4.00%) high severe
push/65536              time:   [1.2917 ms 1.2949 ms 1.2979 ms]
                        thrpt:  [48.156 MiB/s 48.267 MiB/s 48.387 MiB/s]
                 change:
time: [+1.4428% +1.9844% +2.5299%] (p = 0.00 < 0.05)
                        thrpt:  [-2.4675% -1.9458% -1.4223%]
                        Performance has regressed.
Found 3 outliers among 100 measurements (3.00%)
  1 (1.00%) low severe
  1 (1.00%) low mild
  1 (1.00%) high severe

append/4096             time:   [677.87 ns 678.87 ns 679.83 ns]
                        thrpt:  [5.6112 GiB/s 5.6192 GiB/s 5.6274 GiB/s]
                 change:
time: [-0.8924% -0.5017% -0.1705%] (p = 0.00 < 0.05)
                        thrpt:  [+0.1708% +0.5043% +0.9004%]
                        Change within noise threshold.
Found 2 outliers among 100 measurements (2.00%)
  1 (1.00%) low mild
  1 (1.00%) high mild
append/65536            time:   [9.3275 µs 9.3406 µs 9.3536 µs]
                        thrpt:  [6.5253 GiB/s 6.5344 GiB/s 6.5435 GiB/s]
                 change:
time: [+0.5409% +0.7215% +0.9054%] (p = 0.00 < 0.05)
                        thrpt:  [-0.8973% -0.7163% -0.5380%]
                        Change within noise threshold.

slice/4096              time:   [27.673 µs 27.791 µs 27.907 µs]
                        thrpt:  [139.97 MiB/s 140.56 MiB/s 141.16 MiB/s]
                 change:
time: [-1.1065% -0.6725% -0.2429%] (p = 0.00 < 0.05)
                        thrpt:  [+0.2435% +0.6770% +1.1189%]
                        Change within noise threshold.
Found 5 outliers among 100 measurements (5.00%)
  4 (4.00%) low mild
  1 (1.00%) high mild
slice/65536             time:   [507.55 µs 517.40 µs 535.60 µs]
                        thrpt:  [116.69 MiB/s 120.80 MiB/s 123.14 MiB/s]
                 change:
time: [-1.3489% +0.0599% +2.2591%] (p = 0.96 > 0.05)
                        thrpt:  [-2.2092% -0.0598% +1.3674%]
                        No change in performance detected.
Found 8 outliers among 100 measurements (8.00%)
  5 (5.00%) low mild
  2 (2.00%) high mild
  1 (1.00%) high severe

bytes_in_range/4096     time:   [3.3917 µs 3.4108 µs 3.4313 µs]
                        thrpt:  [1.1117 GiB/s 1.1184 GiB/s 1.1247 GiB/s]
                 change:
time: [-5.3466% -4.7193% -4.1262%] (p = 0.00 < 0.05)
                        thrpt:  [+4.3038% +4.9531% +5.6487%]
                        Performance has improved.
Found 6 outliers among 100 measurements (6.00%)
  1 (1.00%) low mild
  5 (5.00%) high mild
bytes_in_range/65536    time:   [88.175 µs 88.613 µs 89.111 µs]
                        thrpt:  [701.37 MiB/s 705.31 MiB/s 708.82 MiB/s]
                 change:
time: [-0.6935% +0.3769% +1.4655%] (p = 0.50 > 0.05)
                        thrpt:  [-1.4443% -0.3755% +0.6984%]
                        No change in performance detected.
Found 2 outliers among 100 measurements (2.00%)
  2 (2.00%) high mild

chars/4096              time:   [678.70 ns 680.38 ns 682.08 ns]
                        thrpt:  [5.5927 GiB/s 5.6067 GiB/s 5.6206 GiB/s]
                 change:
time: [-0.6969% -0.2755% +0.1485%] (p = 0.20 > 0.05)
                        thrpt:  [-0.1483% +0.2763% +0.7018%]
                        No change in performance detected.
Found 9 outliers among 100 measurements (9.00%)
  5 (5.00%) low mild
  4 (4.00%) high mild
chars/65536             time:   [12.720 µs 12.775 µs 12.830 µs]
                        thrpt:  [4.7573 GiB/s 4.7778 GiB/s 4.7983 GiB/s]
                 change:
time: [-0.6172% -0.1110% +0.4179%] (p = 0.68 > 0.05)
                        thrpt:  [-0.4162% +0.1112% +0.6211%]
                        No change in performance detected.
Found 2 outliers among 100 measurements (2.00%)
  1 (1.00%) low mild
  1 (1.00%) high mild

clip_point/4096         time:   [33.240 µs 33.310 µs 33.394 µs]
                        thrpt:  [116.98 MiB/s 117.27 MiB/s 117.52 MiB/s]
                 change:
time: [-2.8892% -2.6305% -2.3438%] (p = 0.00 < 0.05)
                        thrpt:  [+2.4000% +2.7015% +2.9751%]
                        Performance has improved.
Found 12 outliers among 100 measurements (12.00%)
  1 (1.00%) low mild
  4 (4.00%) high mild
  7 (7.00%) high severe
clip_point/65536        time:   [1.6531 ms 1.6586 ms 1.6640 ms]
                        thrpt:  [37.560 MiB/s 37.683 MiB/s 37.808 MiB/s]
                 change:
time: [-6.6381% -5.9395% -5.2680%] (p = 0.00 < 0.05)
                        thrpt:  [+5.5610% +6.3146% +7.1100%]
                        Performance has improved.
Found 7 outliers among 100 measurements (7.00%)
  1 (1.00%) low mild
  2 (2.00%) high mild
  4 (4.00%) high severe

point_to_offset/4096    time:   [11.586 µs 11.603 µs 11.621 µs]
                        thrpt:  [336.15 MiB/s 336.67 MiB/s 337.16 MiB/s]
                 change:
time: [-14.289% -14.111% -13.939%] (p = 0.00 < 0.05)
                        thrpt:  [+16.197% +16.429% +16.672%]
                        Performance has improved.
Found 12 outliers among 100 measurements (12.00%)
  3 (3.00%) low severe
  5 (5.00%) low mild
  4 (4.00%) high mild
point_to_offset/65536   time:   [527.74 µs 532.08 µs 536.51 µs]
                        thrpt:  [116.49 MiB/s 117.46 MiB/s 118.43 MiB/s]
                 change:
time: [-6.7825% -4.6235% -2.3533%] (p = 0.00 < 0.05)
                        thrpt:  [+2.4100% +4.8477% +7.2760%]
                        Performance has improved.
Found 8 outliers among 100 measurements (8.00%)
  4 (4.00%) high mild
  4 (4.00%) high severe

cursor/4096             time:   [16.154 µs 16.192 µs 16.232 µs]
                        thrpt:  [240.66 MiB/s 241.24 MiB/s 241.81 MiB/s]
                 change:
time: [-3.2536% -2.9145% -2.5526%] (p = 0.00 < 0.05)
                        thrpt:  [+2.6194% +3.0019% +3.3630%]
                        Performance has improved.
Found 5 outliers among 100 measurements (5.00%)
  1 (1.00%) low mild
  2 (2.00%) high mild
  2 (2.00%) high severe
cursor/65536            time:   [509.60 µs 511.24 µs 512.93 µs]
                        thrpt:  [121.85 MiB/s 122.25 MiB/s 122.65 MiB/s]
                 change:
time: [-7.3677% -6.6017% -5.7840%] (p = 0.00 < 0.05)
                        thrpt:  [+6.1391% +7.0683% +7.9537%]
                        Performance has improved.
Found 6 outliers among 100 measurements (6.00%)
  3 (3.00%) high mild
  3 (3.00%) high severe
```
Release Notes:

- N/A *or* Added/Fixed/Improved ...

In some rare cases, the auto-generated block gets stuck in
`.git/info/exclude`. We now auto-clean it.

Closes #38374

Release Notes:

- Remove auto-generated block from git excludes if it gets stuck there.

Related to #38427

Release Notes:

* N/A

Fixes ZED-1K3

Release Notes:

- N/A *or* Added/Fixed/Improved ...

The `Duration` argument in `get_models` has been unused for over a year.

The `complete` function is also unused and it has fallen behind in new
feature additions such as Authorization support. This used to exist
because ollama didn't support tools in streaming mode, `with_tools` also
existed because of that. Now however there is no reason to keep this
around.

`ChatResponseDelta ` had unnecessary `#[allow(unused)]` macros since the
fields are marked `pub`. Using `#[expect(unused)]` would've caught this.

Release Notes:

- N/A

Not an ideal fix, but a proper one will require restructuring the
iterator state (which would be easier if Rust had first class
generators)
Fixes ZED-1MB

Release Notes:

- N/A *or* Added/Fixed/Improved ...

Release Notes:

- N/A