Co-authored-by: Eric Holk <eric@zed.dev>

- Fix StubAgentConnection session ID generation to use a global atomic
  counter instead of per-connection length, preventing collisions when
  multiple connections exist in the same test.

- Fix test_idle_thread_dropped_when_navigating_away by storing a
  WeakEntity instead of a strong Entity before checking entity drop.
  The previous assertion could never pass because the strong reference
  kept the entity alive.

- Update all three background_views tests to use session ID comparisons
  instead of entity ID comparisons, which is cleaner now that session
  IDs are globally unique.
Co-authored-by: Eric Holk <eric@zed.dev>

Add support for keeping background agent threads alive in the AgentPanel.
When the user navigates away from a running thread, its ConnectionView is
stashed in a background_views map instead of being dropped. This preserves
execution, event subscriptions, and OS notifications.

Key changes:
- Add background_views HashMap to AgentPanel for retaining running threads
- Replace _active_view_observation with a single detached observation per
  ConnectionView, set up at creation time, that dynamically emits either
  ActiveViewChanged or BackgroundThreadChanged
- Add retain_running_thread to stash running ConnectionViews on navigation
- Add load_agent_thread fast path to promote background threads back to active
- Add parent_threads() API for sidebar consumption
- Add AgentPanelEvent::BackgroundThreadChanged event variant
Co-authored-by: Eric Holk <eric@zed.dev>

co-authored-by: Eric <eric@zed.dev>

Release Notes:

- N/A

---------

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

Release Notes:

- N/A

Release Notes:

- N/A

Follow-up to #50205

Release Notes:

- N/A

Co-authored-by: Neel Chotai <neel@zed.dev>
Co-authored-by: Josh Robson Chase <josh@robsonchase.com>

Fixes ZED-59P

Release Notes:

- Linux: Fix panic when requested window size was larger than supported
by your GPU

Fixes Zed-5AW
Fixes Zed-5AP

Claude believes this is the right fix, but would love someone who knows
more about graphics than me to take a look: @reflectronic / @zortax?

The panic is:
```
wgpu error: Validation Error

Caused by:
  In Texture::create_view
    Texture with 'path_intermediate' label is invalid
gpui::platform::wgpu::wgpu_renderer::WgpuRenderer::create_path_intermediate (wgpu_renderer.rs:742)
gpui::platform::wgpu::wgpu_renderer::WgpuRenderer::update_drawable_size (wgpu_renderer.rs:784)
gpui::platform::linux::x11::window::X11WindowStatePtr::set_bounds (window.rs:1169)
gpui::platform::linux::x11::client::X11Client::handle_event (client.rs:902)
```

or:
```
wgpu error: Validation Error

Caused by:
  In Texture::create_view
    Texture with 'path_intermediate' label is invalid

gpui::platform::wgpu::wgpu_renderer::WgpuRenderer::create_path_intermediate (wgpu_renderer.rs:742)
gpui::platform::wgpu::wgpu_renderer::WgpuRenderer::new (wgpu_renderer.rs:274)
gpui::platform::linux::x11::window::X11WindowState::new::{{closure}} (window.rs:698)
gpui::platform::linux::x11::window::X11WindowState::new (window.rs:488)
gpui::platform::linux::x11::window::X11Window::new (window.rs:814)
gpui::platform::linux::x11::client::X11Client::open_window (client.rs:1514)
gpui::platform::linux::platform::<T>::open_window (platform.rs:289)
gpui::window::Window::new (window.rs:1119)
gpui::app::App::open_window::{{closure}} (app.rs:1025)
gpui::app::App::update (app.rs:835)
gpui::app::App::open_window (app.rs:1022)
```

I haven't seen a Wayland equivalent (not sure if that's because it
doesn't happen on Wayalnd or because I havent' seen it yet)

Release Notes:

- Linux: Fixed a panic in the new WPGU renderer during resize

Fallout from https://github.com/zed-industries/zed/pull/50270

Release Notes:

- N/A

Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>

required after livekit bump

Closes #ISSUE

Before you mark this PR as ready for review, make sure that you have:
- [ ] Added a solid test coverage and/or screenshots from doing manual
testing
- [ ] Done a self-review taking into account security and performance
aspects
- [ ] Aligned any UI changes with the [UI
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)

Release Notes:

- N/A

Closes #49435

Before you mark this PR as ready for review, make sure that you have:
- [ ] Added a solid test coverage and/or screenshots from doing manual
testing
- [ ] Done a self-review taking into account security and performance
aspects
- [ ] Aligned any UI changes with the [UI
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)

Release Notes:

- Linux: Reduced GPU memory usage during resize

Fixes ZED-59V

Release Notes:

- vim: Fixed panic when incrementing a number preceded by a multibyte
character

Release Notes:

- Fixed a bug that caused Zed to appear not to open if your workspaces
failed to restore

Use updated version of our fork of `rust-sdks` with two minor tweaks
that I also submitted for upstreaming.

Release Notes:

- N/A

Avert thy eyes rust project folks

Release Notes:

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

Since there aren't as many guarantees on the default hasher, uses sha256
like our other github downloaders.

Release Notes:

- N/A

Fixes ZED-3BM
Fixes ZED-1RT

Release Notes:

- Windows: Fixed a panic registering a path with language servers when
the UNC path cannot be represented by a Rust URI.

---------

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

Release Notes:

- N/A

If you place your cursor inside an agent diff you can now jump to the
corresponding file by running `editor: Open excerpts`/`editor: Open
excerpts split`.



https://github.com/user-attachments/assets/cf3dba4e-68b7-4643-b9a9-844c2df58295

Release Notes:

- agent: Allow jumping to a file from a diff inside the agent
conversation with option-enter (`editor: Open excerpts`)

---------

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

Follow-up to https://github.com/zed-industries/zed/pull/50138

I deliberately decided against adding this in a separete job because
ts_query_ls is very fast when it comes to both formatting these as well
as checking for proper formatting. Will see here how long it takes to
install and whether we might need to adjust to account for the
installation time.

Release Notes:

- N/A

We were missing the cfg statements in the `LinuxClient` trait definition

Release Notes:

- N/A

This reverts commit aa3a12b566, because we no longer want a zoomed item
to block the sidebar.

This is because the sidebar is used for navigation and it interrupts a
user's flow if they're scrolling through their active workspaces, and
the sidebar just vanishes.

### Before
<img width="3248" height="2122" alt="image"
src="https://github.com/user-attachments/assets/c1c94b2c-fbbc-41a4-8eb9-47160ecba994"
/>

### After
<img width="1624" height="1061" alt="Screenshot 2026-02-27 at 2 10
24 PM"
src="https://github.com/user-attachments/assets/91d70281-f8ed-4da5-8e50-056370eb2fee"
/>


Before you mark this PR as ready for review, make sure that you have:
- [x] Added a solid test coverage and/or screenshots from doing manual
testing
- [x] Done a self-review taking into account security and performance
aspects
- [x] Aligned any UI changes with the [UI
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)

Release Notes:

- N/A

This PR includes a little footer with handy links in all docs pages:

<img width="500" height="532" alt="Screenshot 2026-02-27 at 10  03@2x"
src="https://github.com/user-attachments/assets/f1beb998-ae73-41d1-8fe1-734def58b0c5"
/>

Release Notes:

- N/A

This PR adds https://github.com/zed-industries/zed/pull/50138 to the
`.git-blame-ignore-revs` file.

Release Notes:

- N/A

Release Notes:

- N/A

Fixes a few things:

- Don't filter out any agents from the registry
- Sort the agents case-insensitively
- Allow removing custom agents from the settings page as well

Release Notes:

- N/A

This is a workaround for the fact that ep patches don't have the '\No
newline at end of file` marker.


Release Notes:

- N/A

We now stream the new text into the buffer as soon as we receive partial
chunks of `new_text`. This is pretty much a full re-write of the way
streaming worked, which is now much closer to how the edit agent works:
- `ToolEditParser` buffers chunks as they stream in, and emits relevant
events (`OldTextChunk`,`NewTextChunk`, ...) that we use to power the
`EditSession` pipeline.
- `EditSession::process_events` takes care of consuming these events and
applying the edits incrementally as chunks stream in. `EditPipeline`
maintains the underlying state machine for each edit.
- We handle whitespace mismatches similar to the edit agent, the code is
shared by moving that logic to `reindent.rs`

Before you mark this PR as ready for review, make sure that you have:
- [x] Added a solid test coverage and/or screenshots from doing manual
testing
- [x] Done a self-review taking into account security and performance
aspects
- [x] Aligned any UI changes with the [UI
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)

Release Notes:

- N/A

Turns out you can't query the duplicate issue for the id of the
original/canonical issue, even though GitHub UI displays “Closed as
duplicate of <original issue id>”. Oh well. For the bot performance
tracking all that matters is whether any of its suggestions were the
actual originals, so we're working around the API limitation by querying
the suggested issues instead.

Release Notes:

- N/A

Obviously™, we add the bot-commented issues onto the tracking board at
the time of the issues getting closed, which is very much not the same
time as when the bot commented. We could very well be adding the issue
with a v1 bot comment to the board when v2 is already deployed. This
commit stops messing up those stats.

Release Notes:

- N/A

## Summary

- Tighten `link_pattern_file_candidates` regex from `\(([^)]*)\)` to
`]\(([^)]*)\)` so only Markdown link syntax `[title](path)` triggers
path extraction from parentheses
- Prevents function call arguments like `do_work(file2)` from being
incorrectly resolved as file paths, which preempted LSP go-to-definition

Closes #48938

## Test plan

- [x] `cargo test -p editor hover_links` — all 12 tests pass
- [x] New unit tests verify: function calls don't extract arguments as
file candidates; Markdown links still extract correctly

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Release Notes:

- Fixed Cmd+click navigating to file instead of definition in certain
cases

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Upgrade mermaid-rs-renderer to 9d8360d9cea10dc4bc86d7b8012cc6e9656e6cf2

Release Notes:

- N/A

This PR includes the following adjustments:

- Add divider in the full screen view to expose what part of a
subagent's output is actually sent to the parent model
- Auto-expand the subagent card if there's only one running on a turn
- Adjust errors display within the subagent card

Release Notes:

- N/A

Release Notes:

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

Follow-up to https://github.com/zed-industries/zed/pull/50270

Release Notes:

- N/A

Plus some minor cleanup.

Release Notes:

- Fixed GPU acceleration not working on certain Linux devices.

Closes #50261.

Before you mark this PR as ready for review, make sure that you have:
- ~[ ] Added a solid test coverage and/or screenshots from doing manual
testing~ N/A
- [x] Done a self-review taking into account security and performance
aspects
- [x] Aligned any UI changes with the [UI
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)

Release Notes:

- N/A

Move general type identifier rules before class-specific ones to ensure
proper precedence in the syntax highlighting query.

Closes #49226.

Before you mark this PR as ready for review, make sure that you have:
- [ ] Added a solid test coverage and/or screenshots from doing manual
testing
- [x] Done a self-review taking into account security and performance
aspects
- [x] Aligned any UI changes with the [UI
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)

Release Notes:

- Fixed an issue where class names were not highlighted correctly in
JavaScript files

Release Notes:

- N/A

I've also fixed a race condition with the programmatic context retrieval
in the CLI, which was causing no excerpts to be fetched for the Rust
examples.

Release Notes:

- N/A

This reverts commit 69e5ff7c76faa888ac71ff1d83cd335fb183b065.

Release Notes:

- N/A

## Summary
- add a new `ai_gateway` language model provider in zed using the
openai-compatible chat completions path
- register ai gateway in provider wiring, settings schema, and default
settings
- add vercel ai gateway icon and provider list entry
- parse ai gateway model capabilities from tags (`tool-use`, `vision`)
and supported parameters
- clean up ai gateway oidc auth failures into a concise actionable error
message

Release Notes:

- Added Vercel AI Gateway as a new LLM provider in Zed.

Before you mark this PR as ready for review, make sure that you have:
- [x] Added a solid test coverage and/or screenshots from doing manual
testing
- [x] Done a self-review taking into account security and performance
aspects
- [x] Aligned any UI changes with the [UI
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)

Release Notes:

- N/A

## Problem
Zed's ACP config-options UI was only rebuilding selectors when the set
of config option IDs changed.

For many model switches, the IDs stay the same (`mode`, `model`,
`reasoning_effort`) while the valid values for `reasoning_effort` change
by model. As a result, the picker could show stale values (for example,
missing `xhigh` on `gpt-5.3-codex`, or showing extra `xhigh` after
switching away).

This is especially problematic for providers like Copilot that expose
multiple agents/models with different reasoning-level capabilities.

## Fix
Rebuild ACP config-option selectors on every `config_option_update`, not
only when config IDs change.

This refreshes cached picker entries whenever model-specific option
values change, even if option IDs are unchanged.

## User Impact
- Reasoning-effort picker now reflects the selected model immediately on
Claude <-> GPT transitions.
- Prevents stale or invalid effort choices in ACP sessions.

## Validation
- Manual validation: switch across models with different
reasoning-effort sets and confirm picker updates immediately.
- Local `cargo check -p agent_ui` remains blocked by unrelated
pre-existing `livekit-protocol` compile errors in this checkout.

## Files Changed
- `crates/agent_ui/src/acp/config_options.rs`

Release Notes:

- acp: Fix for config selectors not always being refreshed

---------

Co-authored-by: Ben Brandt <benjamin.j.brandt@gmail.com>

Align better with naming in thread. I grabbed the wrong function name :D

Release Notes:

- N/A