Cherry-pick of #47954 to preview

----
Closes: #46593 #32635 #47924

Co-authored-by: Anthony Eid <hello@anthonyeid.me>
Co-authored-by: Cole Miller <cole@zed.dev>

Release Notes:

- Fixed issues with signing into Copilot via the Settings UI

---------

Co-authored-by: Anthony Eid <hello@anthonyeid.me>
Co-authored-by: Cole Miller <cole@zed.dev>
Co-authored-by: Zed Zippy
<234243425+zed-zippy[bot]@users.noreply.github.com>
Co-authored-by: Anthony Eid <anthony@zed.dev>

Co-authored-by: Piotr Osiewicz <24362066+osiewicz@users.noreply.github.com>
Co-authored-by: Anthony Eid <hello@anthonyeid.me>
Co-authored-by: Cole Miller <cole@zed.dev>
Co-authored-by: Zed Zippy <234243425+zed-zippy[bot]@users.noreply.github.com>
Co-authored-by: Anthony Eid <anthony@zed.dev>

Cherry-pick of #47886 to preview

----
Closes Josephs note about that.

Release Notes:

- Preview only: Fixed an issue where images in the image viewer would
not fit the viewer initially.

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

Cherry-pick of #47881 to preview

----
Closes #47882

Release Notes:

- Fixed a typo in the link to the ACP registry URL blog post

---------

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

Co-authored-by: O. Bennett <illogic-al@users.noreply.github.com>
Co-authored-by: MrSubidubi <finn@zed.dev>

Release Notes:

- N/A

Co-authored-by: Jakub Konka <kubkon@jakubkonka.com>

Release Notes:

- N/A

I'm used to having the Emacs mark-sexp command, which selects/extends
the selection to the start or end of a sexp/larger syntax node, so when
I found out the `move to {start,end} of larger syntax node` commands
were added, these seemed like a natural addition; especially since most
other commands in Zed seem to have movement and selection pairs, but
those didn't really feel like they did.

I did a really *lot* of tests (brainstormed ideas with GLM 4.7, then
wrote the actual test case strings myself, then had it convert them to
Rust, then made sure the tests made sense and passed), I'm not sure if
it's too much or too little, but I looked at the PR that added the `move
to` versions of these commands and it was also +~550 lines, so this
seemed in the ballpark 😅

I factored out the core syntax node finding logic from those commands
into a common function, so that both sets of commands could use it, just
with different code for modifying the editor state wrapped around — mine
just moves each selection's head, instead of totally resetting it.

Release Notes:

- Added commands for extending selections to syntax node boundaries.
i.e. `editor: select to start of larger syntax node` and `editor: select
to end of larger syntax node`.

Basically just replaced `SharedString::new("` with
`SharedShring::new_static("` which removes the allocation to `Arc<str>`.

Unfortunately this can't be enforced at compile time without trait
specialization which is only available on nightly. You could assert that
`TypeId`'s differ, but `TypeId` only exists at runtime.

Release Notes:

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

We need another work of polish before end users are able to use the git
graph.


Release Notes:

- N/A

Release Notes:

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

When working in a workspace with multiple repositories, the git panel
provides a repository picker to switch between them. However, there was
no visual indication of which repositories have uncommitted changes:
users had to either select each repository individually or check the
project panel where modified directories are highlighted.

This change adds git status icons to the repository picker, allowing
users to see at a glance which repositories contain changes (modified,
added, deleted, or conflicted files). The icons use the same visual
language already established for file status throughout the git panel.

Additionally, the repository picker now matches the branch picker's
styling for visual consistency:
- Added "Repositories" header
- Aligned popover width and positioning
- Added scrollbar
- Added check icon next to currently selected repo
- Added selected branch under repo list item
- Sort by display name is now case insensitive

Before:

<img width="1200" height="815" alt="Screenshot 2026-01-27 at 11 43 55"
src="https://github.com/user-attachments/assets/12c1008b-4724-44bf-80c9-e9ad97755090"
/>

After:

<img width="1761" height="1196" alt="Screenshot 2026-01-27 at 14 07 52"
src="https://github.com/user-attachments/assets/cd778f42-ade0-4da0-9732-2d8631c04124"
/>


Branch picker for style reference:

<img width="1200" height="815" alt="Screenshot 2026-01-27 at 11 44 03"
src="https://github.com/user-attachments/assets/369b0d29-8fed-4293-98c2-52c2d780fe9a"
/>

Release Notes:

- Git: Improved the project picker in the panel by also displaying the
GIt status icon on them, to clearly indicate which repos have changes.

---------

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

This PR adds a check during extension compilation to ensure that every
compiled extension provides at least one feature, as otherwise, the
extension is useless to have.

With this in, compiling an extension that does not provide anything will
fail.

Release Notes:

- N/A

This PR adds the upsell banner for built-in agents in the ACP registry
page, meaning: if you search for Claude Code, Codex, or Gemini, we'll
display a banner communicating they're already available in Zed. This
may change one day, though, whenever we rely on their registry
implementation. I'm also removing the beta chip from the page here.

Release Notes:

- N/A

Closes https://github.com/zed-industries/zed/issues/44736

Release Notes:

- Fixed remote server binaries accumulating on wsl over time

Closes https://github.com/zed-industries/zed/issues/46786

Release Notes:

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

Previously, double-click word selection in markdown used simple
space-based boundaries, so `foo.bar()` would be selected as a single
word.

Now we use `CharClassifier` which properly handles word boundaries:

- **Regular markdown text**: Punctuation (`.`, `(`, `)`, etc.) now acts
as word boundaries. Double-clicking on `foo.bar()` selects just `foo` or
`bar`.
- **Code blocks**: Uses the language's word characters. For example, in
JavaScript, `$foo` and `#bar` are selected as whole words since `$` and
`#` are configured as word characters.

Release Notes:

- Improved double-click word selection in Agent Panel to respect
punctuation and language-specific word characters.

Several libcpp headers lack file extensions. Added a first line pattern
for recognition.


https://github.com/llvm/llvm-project/blob/main/libcxx/include/random)](https://github.com/llvm/llvm-project/blob/main/libcxx/include/random

Before:
<img width="1229" height="512" alt="before"
src="https://github.com/user-attachments/assets/fe62f904-73c9-494e-adf5-e5f259fab611"
/>

After:
<img width="1229" height="512" alt="after"
src="https://github.com/user-attachments/assets/a68b4242-61b7-4dba-a12e-9424be4b06dc"
/>

Release Notes:

- Added first-line C++ language detection for extensionless libcpp
headers.

`LanguageServerSeed` is used as a key to identify language servers.
Previously, it included the entire `LspSettings`, which meant that
changing `lsp.<server>.settings` (dynamic configuration) would cause the
server to restart unnecessarily.

Dynamic settings can be updated via LSP's
`workspace/didChangeConfiguration` notification without requiring a
server restart. Only `binary` and `initialization_options` should be
part of the server identity, as changes to these genuinely require
restarting the server.

This is a follow-up fix to #35270 which introduced `LanguageServerSeed`
but inadvertently included dynamic settings in the server identity
(although I remember that this dynamic settings reflection stopped
working pretty recently, so there might be other commits besides #35270
that changed the behavior of `LanguageServerSeed`)

Closes #ISSUE

Release Notes:

- Fixed language servers unnecessarily restarting when changing
`lsp.<server>.settings` configuration. Dynamic settings are now properly
updated via `workspace/didChangeConfiguration` without requiring a
server restart.

Before:
<img width="557" height="668" alt="before"
src="https://github.com/user-attachments/assets/5accf661-94cd-4933-8771-98f813199c39"
/>

After:
<img width="581" height="668" alt="after"
src="https://github.com/user-attachments/assets/251101ca-6e12-4dc3-b4dd-41b2438f9bd7"
/>

Release Notes:

- Added highlighting for document comments in C/C++

## Summary

Adds three syntax highlighting captures that are used across multiple
language definitions but were missing from the documentation table in
`docs/src/extensions/languages.md`.

## Added Captures

| Capture | Used In |
|---------|---------|
| `@constant.builtin` | C, Go, C++, YAML, TSX |
| `@type.builtin` | C++, Python, Rust, JavaScript, TSX |
| `@variable.parameter` | TypeScript, JavaScript, Python, Rust, TSX,
Diff |

## Context

While working on a [PR to add named argument highlighting to the PHP
extension](https://github.com/zed-extensions/php/pull/95), I initially
used `@label` because the documentation didn't list
`@variable.parameter`. A reviewer pointed out that `@variable.parameter`
is actually supported and preferred - the docs were just outdated.

This PR fixes that documentation gap.

Release Notes:

- N/A

Debugging on `main` is so much fun :/

Release Notes:

- N/A

This PR adds a banner to communicate the deprecation of agent server
extensions in favor of the ACP registry:

<img width="600" height="1986" alt="Screenshot 2026-01-27 at 8  37@2x"
src="https://github.com/user-attachments/assets/8c1b658f-d170-4009-a93b-336b785f4be9"
/>

Release Notes:

- N/A

- **Revert "ui: Dismiss context menus when window loses focus
(#46866)"**
- **Revert "Preserve and restore focus across window activation cycles
(#47044)"**

Closes #ISSUE

Release Notes:

- (preview only) Fixed typing emoji using the macOS system palette
(cmd-ctrl-space)

This setting brings Zed in parity with Sublime's `bold_folder_labels`.

The settings does just that, it makes directory labels bold. This
setting is
particularly useful for those who turn icons off, but do need a visual
queue (besides the chevron) to quickly tell apart files and folders.

Note: This PR depends on
https://github.com/zed-industries/zed/pull/47629.
Otherwise, the setting will appear to have no uneffect (unless you're
using a custom UI font). ZedSans has "bold" today, but that's too thick
for the project panel.

<img width="2282" height="1545" alt="zed-project-panel"
src="https://github.com/user-attachments/assets/63ccacc0-c00a-48b2-8e70-923aa6717956"
/>

Release Notes:

- Added `project_panel.bold_folder_labels` to show folder names with
bold text in the project panel (defaults to `false`).

Following user feedback, this should help making the Markdown Preview
more discoverable.

| Buffer Right-click | Tab Right-click |
|--------|--------|
| <img width="2474" height="1824" alt="Screenshot 2026-01-27 at 10 
16@2x"
src="https://github.com/user-attachments/assets/251149e9-89c6-4d11-aed0-872669939cfb"
/> | <img width="2464" height="1808" alt="Screenshot 2026-01-27 at 10 
16 2@2x"
src="https://github.com/user-attachments/assets/359a221b-2141-45b1-98a9-d9c77b601c0b"
/> |

Release Notes:

- Workspace: Added a menu item in the buffer and tab right-click menu
for opening Markdown and SVG files in the preview tab.

- Remove the newlines in the unzip command string, which made it not
work.
- Fix spawning the terminal and tasks. Unfortunately, the Windows
OpenSSH server has limitations that require rather ugly workarounds.

Release Notes:

- N/A

Release Notes:

- N/A

Closes #ISSUE

Release Notes:

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

Closes #ISSUE

Release Notes:

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

---------

Co-authored-by: Zed Zippy <234243425+zed-zippy[bot]@users.noreply.github.com>

Release Notes:

- N/A

Closes #46320

Release Notes:

- Improves error messaging to guide user away from opening a dev
container from within a remote project

Closes #ISSUE

Release Notes:

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

---------

Co-authored-by: Max <max@zed.dev>

<img width="1419" height="266" alt="image"
src="https://github.com/user-attachments/assets/059ee9e2-e102-4fc6-acba-d66ae0292203"
/>


Release Notes:

- N/A

Reverts zed-industries/zed#47322. I'm going to remerge this tomorrow
after releases so we get a full week in nightly to catch any bugs

Closes #47064 
Closes #20806

The previous implementation used Zed's custom fsevent crate, which
spawned a dedicated thread for each watched path. On large projects,
this could result in 100+ threads just for filesystem watching.

This PR removes the `fsevent` crate and switches to using `notify's`
FsEventWatcher directly. The notify implementation maintains a single
FSEvents stream that watches all paths on one thread. When paths are
added or removed, the stream is stopped, the path list is updated, and
the stream is restarted.

Ref: https://github.com/notify-rs/notify/blob/main/notify/src/fsevent.rs

As a result, Zed now uses one thread for filesystem watching regardless
of how many paths are watched.

Release Notes:

- On macOS, Zed now uses significantly fewer resources when watching
filesystem changes

---------

Signed-off-by: Marco Mihai Condrache <52580954+marcocondrache@users.noreply.github.com>
Co-authored-by: Anthony Eid <anthony@zed.dev>

This makes the inline assistant editor use the line height value
configured in the settings, and fixes cut-off button creases:

| Before | After |
|--------|--------|
| <img width="656" height="276" alt="Screenshot 2026-01-27 at 11  55@2x"
src="https://github.com/user-attachments/assets/fbb19e54-6663-4f7e-b706-b012fbfa2c99"
/> | <img width="656" height="274" alt="Screenshot 2026-01-27 at 11 
54@2x"
src="https://github.com/user-attachments/assets/4577b752-3e18-45c7-9657-02919047f8ba"
/> |

Release Notes:

- Agent: Fixed cut-off mention creases in the inline assistant.

This PR swaps the @ icon button in the message editor for a + one, which
opens a dropdown that displays context options you can add to the agent.
Aside from removing one step if you're wanting to add context first with
the mouse (in comparison to just inserting @ in the message editor),
this menu will also house skills you've created, whenever we get to
support to that. It also works to surface images and selections in a bit
more visible way as context options. So, effectivelly, this is a bit of
foundation work for further features to come. Here's what it looks like:

<img width="500" height="586" alt="Screenshot 2026-01-27 at 11  38@2x"
src="https://github.com/user-attachments/assets/551686ba-4629-4317-9177-1e942512a23c"
/>

Note that all the options you see in the menu should also be available
through simply typing @ in the message editor.

Release Notes:

- Agent: Added a menu for inserting context more easily with the mouse
in the agent panel.

The same way you can use `size` when width and height have the same
value, it should also be possible to write `min_size` and `max_size`.
This PR adds these two methods, which are also supported in Tailwind
(but not documented in v4, surprisingly!).

Release Notes:

- N/A

This PR improves the hover tooltip container for displaying a preview of
the mentioned image in the agent panel.

<img width="600" height="414" alt="Screenshot 2026-01-27 at 1  03 2@2x"
src="https://github.com/user-attachments/assets/f5a6f160-6abf-4c3c-8375-4613f4948360"
/>

Release Notes:

- N/A

This PR adds some UI improvements to the ACP registry UI, already
including the URL for the soon-to-be-released blog post. I'm also
renaming the action to open the page from `zed: agent registry` to `zed:
acp registry`.

Release Notes:

- N/A

Closes #46104

Release Notes: 

- Fixed language injections sticking after language comment removed

---

This is working well for the Python SQL comments

![comment_sync_demo](https://github.com/user-attachments/assets/ba5160ce-4867-4b49-9f44-141ddc2730a1)

```python
from pyspark.sql import SparkSession
spark = SparkSession.builder.getOrCreate()

# sql
cmd = "SELECT col1, col2 FROM tbl"

df = spark.sql(  # sql
    """
    WITH cte AS (
        SELECT col1, col2, COUNT(*) AS n
        FROM tbl
        GROUP BY ALL
    )
    SELECT * FROM cte
    """
)
```


And go comments

![comment_sync_demo_go_updated](https://github.com/user-attachments/assets/73e81a94-e8fc-4dc3-82f8-09e966d35bc9)


```go
package main

func test() {
    var _ = /* sql */ `SELECT id, name FROM products`
    var _ = /* sql */ "SELECT id, name FROM products"

    var _ = /* sql */ `SELECT id, name FROM products`

    var _ = /* sql*/ "SELECT id, name FROM products"
}
```

Note: `f04b252dd9` was a simpler implementation that worked for
non-inline comments in Python, but produced the following Go behavior

![comment_sync_demo_go](https://github.com/user-attachments/assets/40336705-9799-4b0a-b457-4974d172e1c8)

---------

Co-authored-by: Joseph T. Lyons <JosephTLyons@gmail.com>

This PR reworks the `Plan` type, now that we don't need to be concerned
about the legacy plan versions.

We've also made the deserialization layer more robust, which should make
it easier to add new plan variants in the future without needing to go
through this same song and dance.

Release Notes:

- N/A

Closes #ISSUE

Release Notes:

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

Add support for Vim's `gdefault` option which makes the `:substitute`
command replace all matches in a line by default, instead of just the
first match. When enabled, the `/g` flag inverts this behavior.

- Add `vim.gdefault` setting
- Add `:set gdefault`, `:set nogdefault` (and short forms `:set gd`, `:set nogd`)
- Fix handling of multiple `/g` flags so that each one inverts the one before

Closes #36209

Release Notes:

- vim: Add `vim.gdefault` setting to make `/g` (replace all matches in a line) the default for substitutions, along with `:set gdefault` and `:set nogdefault` commands (short forms: `gd`, `nogd`)

---------

Co-authored-by: dino <dinojoaocosta@gmail.com>

This is in preparation of merging
https://github.com/zed-industries/zed/pull/47322, because our MacWatcher
implementation was able to watch root directories, and I wanted to
maintain that behavior to decrease the chance of any bugs occurring from
a merge

Note: Release candidate 9 for Notify was created two days ago which
means that a new version is coming out soon. We should update to v9 once
it's released to include bug fixes from upstream.

Release Notes:

- N/A

Closes #ISSUE

Release Notes:

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

The claude code action insists on needing `id-token: write` despite us
using `github_token`, so maybe I misread the 
[FAQ](https://github.com/anthropics/claude-code-action/blob/main/docs/faq.md#why-am-i-getting-oidc-authentication-errors)
earlier. Pinning the sha of the currently-used version of the action for
safety's sake.

Release Notes:

- N/A

This PR moves the `Plan` type out of `cloud_llm_client` and into
`cloud_api_types`.

Release Notes:

- N/A

New on the left, old on the right:

<img width="1612" height="1047" alt="Screenshot 2026-01-26 at 20 31 04"
src="https://github.com/user-attachments/assets/3e0d01b6-05e9-4c9c-8c15-6c525ce9fa9f"
/>
<img width="1604" height="915" alt="Screenshot 2026-01-26 at 20 30 49"
src="https://github.com/user-attachments/assets/77d0f9e0-778b-45df-a8e1-ade63ee9e798"
/>


Release Notes:

- Bold UI text will now render using Plex SemiBold instead of Bold.