## Summary

Fixes arithmetic underflow panics in `terminal_scrollbar.rs` by
converting unsafe subtractions to `saturating_sub`.

Closes #45281

## Problem

Two locations perform raw subtraction on `usize` values that panic when
underflow occurs:

- `offset()`: `state.total_lines - state.viewport_lines -
state.display_offset`
- `set_offset()`: `state.total_lines - state.viewport_lines`

This happens when `total_lines < viewport_lines + display_offset`, which
can occur during terminal creation, with small window sizes, or when
display state becomes stale.

## Solution

Replace the two unsafe subtractions with `saturating_sub`, which returns
0 on underflow instead of panicking.

Also standardizes the existing `checked_sub().unwrap_or(0)` in
`max_offset()` to `saturating_sub` for consistency across the file.

## Changes

- N/A

Closes #ISSUE

Release Notes:

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

Closes #ISSUE

Uses the existing `--dump-all-actions` arg on the Zed binary to generate
an asset of all of our actions so that the `docs_preprocessor` can
injest it, rather than depending on the Zed crate itself to collect all
action names

Release Notes:

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

---------

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

Closes #24264

Release Notes:

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

- Both the mode, profile, and model selectors have the option to cycle
through its options with a keybinding. In the tooltip that shows it, in
some of them the "Cycle Through..." label was at the top, and in others
at the bottom. Now it's all at the bottom.
- We used different language in different places for "going to a file".
The tool call edit card's header said "_Jump_ to File" while the edit
files list said "_Go_ to File". Now it's both "Go to File".

Release Notes:

- N/A

Although I wanted to avoid the dependency, it's hard to get github to do
what we want.

Release Notes:

- N/A

This adds support for provider extensions but doesn't actually add any
yet.

Release Notes:

- N/A

I wanted a way to make it easy to figure out which version of a language
server Zed is running. Now, you get a tooltip when hovering on a
language server in the Language Servers popover.

<img width="498" height="168" alt="SCR-20251218-ovln"
src="https://github.com/user-attachments/assets/1ced4214-b868-4405-8881-eb7c0b75a53e"
/>

This PR also fixes a bug. We had existing code to open a tooltip on
these language server entrees and display the language server message,
which was never fully wired up for `CustomEntry`s. Now, in this PR, we
will show show either version, message, or both, in the documentation
aside, depending on what the server has given us.

Mostly done with Droid (using GPT-5.2), with manual review and multiple
follow ups to guide it into using existing patterns in the codebase,
when it did something abnormal.

Release Notes:

- Added language server version in a tooltip on language server hover

---------

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>

This PR upgrades `danger-plugin-pr-hygiene` to v0.7.1.

Release Notes:

- N/A

This PR removes the docs for running Collab locally, as they are
outdated and don't reflect the current state of affairs.

Release Notes:

- N/A

Closes #43646

Release Notes:

- Fixed display name for Ollama models

This PR simplifies how we display thread timestamps in the agent panel's
history view. For threads that are older-than-yesterday, we just show
how many days ago that thread was had in. Hovering over the thread item
shows you both the title and the full date, if needed (time and date).

<img width="450" height="786" alt="Screenshot 2025-12-18 at 5  24@2x"
src="https://github.com/user-attachments/assets/11416e9b-f1b0-4307-9db0-988a95a316a1"
/>


Release Notes:

- N/A

Closes #37902

Release Notes:

- Enable LSP Message action items for more language servers. These are interactive prompts, often for things like downloading build inputs for a project.

Redact environment variables from zed logs when lsp fails to spawn.

Release Notes:

- N/A

This PR upgrades `danger-plugin-pr-hygiene` to v0.7.0 so that we can
have Danger deny conventional commits in PR titles.

Release Notes:

- N/A

Closes #43355

Fixes the issue were code actions with long labels would get cut off
without being able to see the full description. We now properly truncate
those labels with an ellipsis and show the full description in an aside.

Release Notes:

- Added ellipsis to truncated code actions and an aside showing the full
action description.

Fixes grammar and a typo in `Picker` description.

Release Notes:

- N/A

Closes #13304

Release Notes:

- Add global `git status` and `git diff` on/off in one place instead of
control everywhere

We can first review to ensure this change meets both `Zed` and user
requirements, as well as code rules. Currently, we only support
user-level settings. We can wait for this PR:
https://github.com/zed-industries/zed/pull/43173 to be merged, then
modify it to support both user and project levels.

When profiling Zed with Instruments, a warning appears indicating that
surfaces cannot be pushed directly to the display as they are
non-opaque. This happens because the metal layer is currently marked as
non-opaque by default, even though the window itself is not transparent.

<img width="590" height="55" alt="image"
src="https://github.com/user-attachments/assets/2647733e-c75b-4aec-aa19-e8b2ffd6194b"
/>

Metal on macOS can bypass compositing and present frames directly to the
display when several conditions are met. One of those conditions is that
the backing layer must be declared opaque. Apple’s documentation notes
that marking layers as opaque allows the system to avoid unnecessary
compositing work, reducing GPU load and improving frame pacing

Ref:
https://developer.apple.com/documentation/metal/managing-your-game-window-for-metal-in-macos

This PR updates the Metal renderer to mark the layer as opaque whenever
the window does not use transparency. This makes Zed eligible for
macOS’s direct-to-display optimization in scenarios where the system can
apply it.

Release Notes:

- gpui: Mark metal layers opaque for non-transparent windows to allow
direct-to-display when supported

---------

Signed-off-by: Marco Mihai Condrache <52580954+marcocondrache@users.noreply.github.com>

Release Notes:

- N/A

Closes #ISSUE

Removes a few eager container clones and iterations.

Added a todo to `get_prev_tab_group_window` and
`get_next_tab_group_window`. They seem to use `HashMap::keys()` for
choosing the previous tab group, however `.keys()` returns an arbitrary
order, so I'm not sure if previous actually means anything here. Conrad
seems to have worked on this part previously, maybe he has some
insights. That can possibly be a follow-up PR, but I'd be willing to
work on it here as well since the other changes are so simple.

Release Notes:

- N/A

Follow up to #45004

Release Notes:

- N/A

Follow up to a regression that happened when we introduced agent servers
that made everywhere displaying agent names use the extension name
instead of the display name. This has been since fixed in other places
and this PR now updates the agent panel's message editor, too:

| Before | After |
|--------|--------|
| <img width="1154" height="254" alt="Screenshot 2025-12-18 at 12  54
2@2x"
src="https://github.com/user-attachments/assets/5f3de9f9-4e11-42f6-90c2-56fc8cdff32e"
/> | <img width="1154" height="254" alt="Screenshot 2025-12-18 at 12 
54@2x"
src="https://github.com/user-attachments/assets/46ed5c45-7e1d-4cc6-b219-b6cc19206d1b"
/> |

Release Notes:

- N/A

Closes #42934 

Release Notes:

- Fix toggling adjacent git-diff hunks based on the reported behaviour
in #42934

---------

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

Closes #ISSUE

A [modal dialog](https://en.wikipedia.org/wiki/Modal_window) window is a
window that demands the user's immediate attention and blocks
interaction with other parts of the application until it's closed.

- On Windows this is done by disabling the parent window when the dialog
window is created and re-enabling the parent window when closed.
- On Wayland this is done using the
[`XdgDialog`](https://wayland.app/protocols/xdg-dialog-v1) protocol,
which hints to the compositor that the dialog should be modal. While
compositors like GNOME and KDE block parent interaction automatically,
the XDG specification does not guarantee this behavior, compositors may
deliver events to the parent window unfiltered. Since the specification
explicitly requires clients to implement event filtering logic
themselves, this PR implements client-side blocking in GPUI to ensure
consistent modal behavior across all Wayland compositors, including
those like Hyprland that don't block parent interaction.
- On X11 this is done by enabling the application window property
[`_NET_WM_STATE_MODAL`](https://specifications.freedesktop.org/wm/latest/ar01s05.html#id-1.6.8)
state.

I'm unable to implement this on MacOS as I lack the experience and the
hardware to test it. If anyone is interested on implementing this let me
know.

|Window|Linux (wayland)| Linux (x11) |MacOS|
|-|-|-|-|
|<video
src="https://github.com/user-attachments/assets/bfd0733a-445d-4b63-ac6b-ebe098a7dc74"></video>|<video
src="https://github.com/user-attachments/assets/024cd6ec-ff81-4250-a5be-5d207a023f8c"></video>|
N/A | <video
src="https://github.com/user-attachments/assets/656e60a5-26b2-4ee2-8368-1fbbe872453c"></video>|

TODO:

- [x] Block parent interaction client-side on X11

Release Notes:

- Added modal dialog window kind on GPUI

---------

Co-authored-by: Jason Lee <huacnlee@gmail.com>
Co-authored-by: Anthony Eid <anthony@zed.dev>
Co-authored-by: Anthony Eid <hello@anthonyeid.me>

Follow up to #42982

Release Notes:

- agent: Allow pasting code without formatting via ctrl/cmd-shift-v.
- agent: Fixed an issue where pasting a single line of code would always
insert an @mention

Release Notes:

- N/A

## Summary
Fix panic "cannot update workspace::pane::Pane while it is already being
updated" when dragging terminal tabs to split the pane.

## Problem
When dragging a terminal tab to create a split, the app panics due to
re-entrancy: the drop handler calls `terminal_panel.center.split()`
synchronously, which invokes `mark_positions()` that tries to update all
panes in the group. When the pane being updated is part of the terminal
panel's center group, this causes a re-entrancy panic.

## Solution
Defer the split operation using `cx.spawn_in()`, similar to how
`move_item` was already deferred in the same handler. This ensures the
split (and subsequent `mark_positions()` call) runs after the current
pane update completes.

## Test plan
- Open terminal panel
- Create a terminal tab
- Drag the terminal tab to split the pane
- Verify no panic occurs and split works correctly

- Follow up to https://github.com/zed-industries/zed/pull/45097 — not
showing raw inputs for edit and terminal calls
- Removing the display of empty Markdown if the model outputs it

Release Notes:

- N/A

---------

Co-authored-by: Agus Zubiaga <hi@aguz.me>
Co-authored-by: Ben Brandt <benjamin.j.brandt@gmail.com>

Closes #44717

Sometimes, we show the user the agent's auth methods because we got an
AuthRequired error.

However, there are also several ways a user can choose to re-enter the
authentication flow even though they are still logged in.

This has caused some confusion with several users, where after logging
in, they type /login again to see if anything changed, and they saw an
"Authentication Required" warning.

So, I made a distinction in the UI if we go to this flow from a concrete
error, or if not, made the language less error-like to help avoid
confusion.

| Before | After |
|--------|--------|
| <img width="1154" height="446" alt="Screenshot 2025-12-18 at 10 
54@2x"
src="https://github.com/user-attachments/assets/9df0d59a-2d45-4bfc-ba85-359dd1a4c8ae"
/> | <img width="1154" height="446" alt="Screenshot 2025-12-18 at 10 
53@2x"
src="https://github.com/user-attachments/assets/73a9fb45-4e6f-4594-8795-aaade35b2a72"
/> |


Release Notes:

- N/A

---------

Co-authored-by: Danilo Leal <daniloleal09@gmail.com>
Co-authored-by: Miguel Raz Guzmán Macedo <miguel@zed.dev>

Release Notes:

- Fixed an issue on windows where clicking buttons on windows in the
background would not register as being clicked on that window

They count the requested max_output_tokens against the prompt total.
Seems like a bug on their end as most other providers don't do this, but
now we just default to None for the main models and let the API use its
default behavior which works just fine.

Closes: #45134

Release Notes:

- deepseek: Fix issue with Deepseek API that was causing the token limit
to be reached sooner than necessary

Closes #45179

## Summary

Fixes the focus behavior when creating terminals with
`RevealStrategy::NoFocus` or `RevealStrategy::Never`. Previously,
terminals would still receive focus if the terminal pane already had
focus, contradicting the documented behavior.

## Changes

- **`add_terminal_task()`**: Changed focus logic to only focus when
`RevealStrategy::Always`
- **`add_terminal_shell()`**: Same fix

The fix changes:
```rust
// Before
let focus = pane.has_focus(window, cx)
    || matches!(reveal_strategy, RevealStrategy::Always);

// After  
let focus = matches!(reveal_strategy, RevealStrategy::Always);
```

## Impact

This affects:
- Vim users running `:!command` (uses `NoFocus`)
- Debugger terminal spawning (uses `NoFocus`)
- Any programmatic terminal creation requesting background behavior

Release Notes:

- Fixed terminal focus behavior to respect `RevealStrategy::NoFocus` and
`RevealStrategy::Never` settings when the terminal pane already has
focus.

Release Notes:

- Allow using locally installed `ty` for Python

Closes https://github.com/zed-industries/zed/issues/45083

cc @agu-z 

Release Notes:

- Fixed certain rust-analyzer snippets not shown

This spams the log with amazon bedrock otherwise

Release Notes:

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

Closes #41246 #45092

Release Notes:

- N/A

**Root Cause**:
Empty local workspaces returned `DetachFromSession` from 
`serialize_workspace_location()`, and the `DetachFromSession` handler
only cleared the session_id **without saving window bounds**.

**Fix Applied**:
Modified the `DetachFromSession` handler to save window bounds via
`set_window_open_status()`:
```rust
WorkspaceLocation::DetachFromSession => {
    let window_bounds = SerializedWindowBounds(window.window_bounds());
    let display = window.display(cx).and_then(|d| d.uuid().ok());
    window.spawn(cx, async move |_| {
        persistence::DB
            .set_window_open_status(database_id, window_bounds, display.unwrap_or_default())
            .await.log_err();
        persistence::DB.set_session_id(database_id, None).await.log_err();
    })
}
```

**Recording**:


https://github.com/user-attachments/assets/2b6564d4-4e1b-40fe-943b-147296340aa7

This was from an early iteration and this code path isn't used anymore

Release Notes:

- N/A

Follow-up of https://github.com/zed-industries/zed/pull/45187

Release Notes:

- N/A

It seems we unintentionally changed the default behavior of if we use
the gemini on the path in #40663

Changing this back so by default we use a managed version of the CLI so
we can better control min versions and the like, but still allow people
to override if they need to.

Release Notes:

- N/A

Previously, when opening a new project (one that was never opened
before), the window bounds restoration logic would fall through to
GPUI's default window sizing instead of using the last known window
bounds.

This change consolidates the window bounds restoration logic so that
both empty workspaces and new projects use the stored default window
bounds, making the behavior consistent: any new window will use the last
resized window's size and position.

Closes #45092 

Release Notes:

- Fixed new files and projects opening with default window size instead
of the last used window size.

I noticed some of mistral models context lenghts were outdated, they
were updated accordingly to mistral documentation.

The following models had their context lenght changed:

[mistral-large-latest](https://docs.mistral.ai/models/mistral-large-3-25-12)

[magistral-medium-latest](https://docs.mistral.ai/models/magistral-medium-1-2-25-09)

[magistral-small-latest](https://docs.mistral.ai/models/magistral-small-1-2-25-09)

[devstral-medium-latest](https://docs.mistral.ai/models/devstral-2-25-12)

[devstral-small-latest](https://docs.mistral.ai/models/devstral-small-2-25-12)

Follow up to https://github.com/zed-industries/zed/pull/44297.

Initial implementation in ce884443f1c38ca8da9edf9fbbb8e7fd579452cb used
`Arc` to store the reference to the hash map inside the iterator while
keeping the lifetime static. The code was later simplified in
5151b22e2ea37fb457cf4f88b88fe4f315306074 to build the list eagerly but
the Arc was forgotten, although it became unnecessary.

cc @bennetbo

Release Notes:

- N/A

Based on
https://github.com/zed-industries/zed/pull/45187#discussion_r2630140112

Release Notes:

- N/A

Co-authored-by: Lukas Wirth <lukas@zed.dev>

Also do not eagerly invalidate this data on buffer reparse start

Closes https://github.com/zed-industries/zed/issues/45182

Release Notes:

- Fixed bracket colorization not applied on initial file open

This is already noted in our `default-macos.json`, but was never
surfaced in our docs for some reason. A user noted their LSP completions
were not working because they were not aware of the conflicting global
shortcut.

Ref:
https://github.com/zed-industries/zed/issues/44970#issuecomment-3664118523

Release Notes:

- N/A

The change simplifies the `max_token_count` and `max_output_tokens`
methods by grouping Gemini models with identical token limits.

Release Notes:

- N/A

Was removed in
https://github.com/zed-industries/zed/pull/44887/changes#diff-1de872be76a27a9d574a0b0acec4581797446e60743d23b3e7a5f15088fa7e61

Release Notes:

- (Preview only) Fixed certain modals not being dismissed on mouse click
outside