Closes #42586 

This includes a rewrite of `calculate_relative_line_numbers()`. Now it's
linear-time with respect to the number of rows displayed, instead of
linear time with respect to the number of rows displayed _plus_ the
distance to the base row.

Release Notes:

- Improved performance when using relative line numbers in large files
- Fixed relative line numbers not appearing in sticky headers

Adds a multi-step agentic loop to github actions for opening a
once-daily documentation PR that can be merged only be a Zedi

Release Notes:

- N/A

---------

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

Closes #43319

Release Notes:

- Sticky headers no longer obscure the cursor when it moves.

---------

Co-authored-by: HactarCE <6060305+HactarCE@users.noreply.github.com>

Closes #17467

Release Notes:

- On macOS, buffer search now syncs with the system find pasteboard,
allowing <kbd>⌘E</kbd> and <kbd>⌘G</kbd> to work seamlessly across Zed
and other apps.

Closes #ISSUE

Release Notes:

- Fixed an issue where the `pane: close all items` action would give up
if you hit "Cancel" on the prompt for what to do with a dirty buffer

It's been a little that we've noticed some flickering and other weird
resizing behavior with text truncation in Zed:


https://github.com/user-attachments/assets/4d5691a3-cd3d-45e0-8b96-74a4e0e273d2


https://github.com/user-attachments/assets/d1d0e587-7676-4da0-8818-f4e50f0e294e

Initially, we suspected this could be due to how we calculate the length
of a line to insert truncation, which is based first on the length of
each individual character, and then second goes through a pass
calculating the line length as a whole. This could cause mismatch and
culminate in our bug.

However, even though that felt like a reasonable suspicion, I realized
something rather simple at some point: the `truncate` and
`truncate_start` methods in the `Label` didn't use `whitespace_nowrap`.
If you take Tailwind as an example, their `truncate` utility class takes
`overflow: hidden; text-overflow: ellipsis; white-space: nowrap;`. This
pointed out to a potential bug with `whitespace_nowrap` where that was
blocking truncation entirely, even though that's technically part of
what's necessary to truncate as you don't want text that will be
truncated to wrap.

Ultimately, what was happening was that the text element was caching its
layout based on its `wrap_width` but not considering its
`truncate_width`. The truncate width is essentially the new definitive
width of the text based on the available space, which was never being
computed. So the fix here was to add `truncate_width.is_none()` to the
cache validation check, so that it only uses the cached text element
size _if the truncation width is untouched_. But if that changes, we
need to account for the new width. Then, in the Label component, we
added `min_w_0` to allow the label div to shrink below its original
size, and finally, we added `whitespace_nowrap()` as the cache check
fundamentally fixed that method's problem.

In a future PR, we can basically remove the `single_line()` label method
because: 1) whenever you want a single label, you most likely want it to
truncate, and 2) most instances of `truncate` are already followed by
`single_line` in Zed today, so we can cut that part.

Result is no flickering with truncated labels!


https://github.com/user-attachments/assets/ae17cbde-0de7-42ca-98a4-22fcb452016b

Release Notes:

- Fixed a bug in GPUI where truncated text would flicker as you resized
the container in which the text was in.

Co-authored-by: Lukas Wirth <me@lukaswirth.dev>

Closes #5089

Release notes:
- Markdown lists now continue automatically when you press Enter
(unordered, ordered, and task lists). This can be configured with
`extend_list_on_newline` (default: true).
- You can now indent list markers with Tab to quickly create nested
lists. This can be configured with `indent_list_on_tab` (default: true).

---------

Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Smit Barmase <heysmitbarmase@gmail.com>

Closes #45253

Release Notes:

- Fixed terminal doesn't switch to project directory when opening remote
project on Windows

From Zed's title bar, you can click on buttons to open three modal
pickers: remote projects, projects, and branches. All of these pickers
use the modal layer, which by default, renders them centered on the UI.
However, a UX issue we've been bothered by is that when you _click_ to
open them, they show up just way too far from where your mouse likely is
(nearby the trigger you just clicked). So, this PR introduces a
`ModalPlacement` enum to the modal layer, so that we can pick between
the "centered" and "anchored" options to render the picker. This way, we
can make the pickers use anchored positioning when triggered through a
mouse click and use the default centered positioning when triggered
through the keybinding.

One thing to note is that the anchored positioning here is not as
polished as regular popovers/dropdowns, because it simply uses the x and
y coordinates of the click to place the picker as opposed to using
GPUI's `Corner` enum, thus making them more connected to their triggers.
I chose to do it this way for now because it's a simpler and more
contained change, given it wouldn't require a tighter connection at the
code level between trigger and picker. But maybe we will want to do that
in the near future because we can bake in some other related behaviors
like automatically hiding the button trigger tooltip if the picker is
open and changing its text color to communicate which button triggered
the open picker.


https://github.com/user-attachments/assets/30d9c26a-24de-4702-8b7d-018b397f77e1

Release Notes:

- Improved the UX of title bar modal pickers (remote projects, projects,
and branches) by making them open closer to the trigger when triggering
them with the mouse.

This adds the following Vim commands: 
- `:r[ead] [name]`
- `:{range}r[ead] [name]`

The most important parts of this feature are outlined
[here](https://vimhelp.org/insert.txt.html#%3Ar).

The only intentional difference between this and Vim is that Vim only
allows `:read` (no filename) for buffers with a file attached. I am
allowing it for all buffers because I think that could be useful.

Release Notes:

- vim: Added the [`:r[ead] [name]` Vim
command](https://vimhelp.org/insert.txt.html#:read)

---------

Co-authored-by: Ben Kunkle <ben@zed.dev>

Fixes #29073

This PR reduces unnecessary GPU usage by being more selective about when
we present frames to prevent display underclocking (VRR optimization).

## Problem

Previously, we would keep presenting frames for 1 second after *any*
input event, regardless of whether it triggered a re-render. This caused
unnecessary GPU work when the user was idle or during low-frequency
interactions.

## Solution

1. **Only track input that triggers re-renders**: We now only record
input timestamps when the input actually causes the window to become
dirty, rather than on every input event.

2. **Rate-based activation**: The VRR optimization now only activates
when input arrives at a high rate (≥ 60fps over the last 100ms). This
means casual mouse movements or occasional keystrokes won't trigger
continuous frame presentation.

3. **Sustained optimization**: Once high-rate input is detected (e.g.,
during scrolling or dragging), we sustain frame presentation for 1
second to prevent display underclocking, even if input briefly pauses.

## Implementation

Added `InputRateTracker` which:
- Tracks input timestamps in a 100ms sliding window
- Activates when the window contains ≥ 6 events (60fps × 0.1s)
- Extends a `sustain_until` timestamp by 1 second each time high rate is
detected

Release Notes:

- Reduced GPU usage when idle by only presenting frames during bursts of
high-frequency input.

This fixes a number of issues where zed depends on the order of polling which changed when switching scheduler. We have adjusted the algorithm so it matches the previous order while keeping the prioritization feature.

Release Notes:
- N/A

Closes https://github.com/zed-industries/zed/issues/21144

Release Notes:

- Fixed spawned tasks creating an extra terminal in the dock in some
cases.

https://github.com/user-attachments/assets/758e1ec9-6c34-4e13-b605-cf00c18ca16f

Release Notes:

- Improved: Git panel now truncates long file paths from the left,
showing "…path/filename" when space is limited, keeping filenames always
visible.

@cole-miller @mattermill

---------

Co-authored-by: Danilo Leal <67129314+danilo-leal@users.noreply.github.com>
Co-authored-by: Danilo Leal <daniloleal09@gmail.com>

This PR is an additive change introducing the `truncate_start` method to
labels, which gives us the ability to add an ellipsis at the beginning
of the text as opposed to the regular `truncate`. This will be generally
used for truncating file paths, where the end is typically more relevant
than the beginning, but given it's a general method, there's the
possibility to be used anywhere else, too.

<img width="500" height="690" alt="Screenshot 2025-12-17 at 12  35@2x"
src="https://github.com/user-attachments/assets/f853f5a3-60b3-4380-a11c-bb47868a4470"
/>

Release Notes:

- N/A

---------

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

Closes #42268
We've migrated user selections when a given workspace has a single
worktree (as then we could determine what the target worktree is).

Release Notes:

- python: Fixed selected virtual environments not being
persisted/deserialized correctly within long-running Zed sessions (where
multiple different projects might've been opened). This is a breaking
change for users of multi-worktree projects - your selected toolchain
for those projects will be reset.

Co-authored-by: Dino <dino@zed.dev>

Closes #44955 

Release Notes:

- Fixed workspace incorrectly automatically switching Git
repository/branch context in multi-repository projects when repo/branch
switched manually from the Git panel.

It will run weekly and it promised not to touch issues of the wrong
types anymore.

Release Notes:

- N/A

The size and spacing around the traffic light buttons changes after
macOS SDK 26. Our official builds aren't using this SDK yet, but dev
builds sometimes are and the official will in the future.

<table>
<tr>
<th>Before</th>
<th>After</th>
</tr>
<tr>
<td>
<img width="582" height="146" alt="CleanShot 2025-12-19 at 08 58 53@2x"
src="https://github.com/user-attachments/assets/1a28d74a-98a3-49d0-98d6-ab05b0580665"
/>
</td>
<td>
<img width="610" height="156" alt="CleanShot 2025-12-19 at 08 57 02@2x"
src="https://github.com/user-attachments/assets/7b7693b3-baa1-4d7e-9fc1-bd7a7bfacd36"
/>
</td>
</tr>
<tr>
<td>
<img width="532" height="154" alt="CleanShot 2025-12-19 at 08 59 40@2x"
src="https://github.com/user-attachments/assets/df7f40e7-7576-44f2-9cf3-047a5d00bb4e"
/>
</td>
<td>
<img width="520" height="150" alt="CleanShot 2025-12-19 at 09 01 17@2x"
src="https://github.com/user-attachments/assets/b0fbdeb6-1b1d-4e7a-95d0-3c78f0569df1"
/>
</td>
</tr>
</table>

Release Notes:

- N/A

- adjust wording for the upcoming simplified process
- upgrade to the github action version that has a fix for configuring issue types the bot should look at
- add two inputs for the manual runs of stalebot that help testing it in a safe and controlled manner 

Release Notes:

- N/A

These files are used by the BuildStream build project:
https://buildstream.build/index.html


Release Notes:

- Added recognition for .bst files as yaml.

Idk why it was missing, but

Release Notes:

- N/A

Co-authored-by: cameron <cameron.studdstreet@gmail.com>

Closes #43991
trim documentation string to prevent completion overlap


previous
[Screencast from 2025-12-16
14-55-58.webm](https://github.com/user-attachments/assets/d7674d82-63b0-4a85-a90f-b5c5091e4a82)
after change
[Screencast from 2025-12-16
14-50-05.webm](https://github.com/user-attachments/assets/109c22b5-3fff-49c8-a2ec-b1af467d6320)
Release Notes:

- Fixed an issue where completions in the completion menu would span
multiple lines.

Closes #45337

Release Notes:

- Fixed broken completion menu layout caused by trailing newlines in ty
documentation

<table>
  <tr>
    <td>Before</td>
    <td>After</td>
  </tr>
  <tr>
    <td>
<img width="756" height="875" alt="before"
src="https://github.com/user-attachments/assets/1d9da7d8-437a-4f03-8158-32ff1af9a428"
/>
    </td>
    <td>  
<img width="755" height="875" alt="after"
src="https://github.com/user-attachments/assets/dca31af3-e571-445a-b4a9-c300bb4c63fa"
/>
    </td>
  </tr>
</table>

Closes #23367 

**Summary**
- Prevents inline diagnostics, code actions, blame annotations, and
hover popovers from overlapping with the right-click context menu by
checking for `mouse_context_menu` presence before rendering these UI
elements.

PS: Same behaviour is present in other editors like VS Code.


**Screen recording**


https://github.com/user-attachments/assets/8290412b-0f86-4985-8c70-13440686e530



Release Notes:

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

## 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>