This fixes an issue where some changes that should trigger more checks
would go unnoticed.

Release Notes:

- N/A

Fixing a minor UI issue that regressed in
https://github.com/zed-industries/zed/pull/49038.

Release Notes:

- N/A

Release Notes:

- N/A

Closes #49259

Release Notes:

- This change ensures that when the last visible collapsed directory is
selected, the selection remains on that directory.

We need more fetch depth here for the check, hence bumping this.

Also does a drive-by cleanup of the checkout step within xtask to make
this (hopefully) more intuitive to use.

Release Notes:

- N/A

<img width="435" height="211" alt="Screenshot 2026-02-17 at 1 32 48 PM"
src="https://github.com/user-attachments/assets/136c188d-5001-4526-961e-9f7faccc5f7a"
/>


Add support for the new Claude Sonnet 4.6 model across the anthropic,
bedrock, and language_models crates. Includes base, thinking, and 1M
context variants.

Closes AI-39

Release Notes:

- Added BYOK support for Claude Sonnet 4.6

This PR updates the `Edit Prediction Rated` event to be routed through
Cloud instead of the normal telemetry pipeline.

Closes CLO-224.

Release Notes:

- N/A

---------

Co-authored-by: Tom <tom@zed.dev>

## Summary
- refresh git auth headers before each per-crash iteration in
`background_agent_mvp`
- add guarded `git fetch`/`git checkout` handling so one candidate auth
failure doesn’t fail the entire run

## Context
- fixes the auth failure seen in workflow run 22106378719 (`fatal: could
not read Username for 'https://github.com'`)
- related Linear issue: BIZOPS-853

## Testing
- ruby -e "require 'yaml';
YAML.load_file('.github/workflows/background_agent_mvp.yml')"

Release Notes:

- N/A

Release Notes:

- N/A

Before this PR we wouldn't always serialize workspaces when a
mutliworkspace adds/removes a workspace. This PR fixes this by adding a
test and calling serialization in remove

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
- [ ] Aligned any UI changes with the [UI
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)

Release Notes:

- N/A

Add `remove_worktree()` and `rename_worktree()` to the `GitRepository`
trait with `RealGitRepository` implementations that shell out to `git
worktree remove/move`.

Implement all 4 worktree methods (`worktrees`, `create_worktree`,
`remove_worktree`, `rename_worktree`) on `FakeGitRepository` backed by
`FakeGitRepositoryState`, with `simulated_create_worktree_error` for
test-time fault injection.

Add `set_create_worktree_error()` helper on `FakeFs`.

Add `parse_worktrees_from_str` helper and 7 new tests covering real git
operations and fake worktree lifecycle.

Closes AI-31

Release Notes:

- N/A

## Before

<img width="1596" height="230" alt="repro"
src="https://github.com/user-attachments/assets/d96d9bc4-cc46-4c11-8ac8-0051a1a51316"
/>

## After

<img width="1000" height="800" alt="error_message_wrapping"
src="https://github.com/user-attachments/assets/7553607a-2cbf-414d-9794-dbd6f3b0f9eb"
/>


Previously, error message text was overflowing and getting clipped
instead of wrapping when displaying long error messages (e.g. rate limit
errors in the agent panel).

Closes AI-38

Release Notes:

- Fixed long error messages (e.g. rate limit errors) being clipped
instead of wrapping in the agent panel.

This PR updates the `Agent Thread Rated` event to be routed through
Cloud instead of the normal telemetry pipeline.

Closes CLO-223.

Release Notes:

- N/A

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:

- Improved the behavior of the `vim: join lines` and `editor: join lines`. Comment and other language specific line prefixes are now stripped from the join line

Switches `newline_below` from adding a newline to the start of the next
line in a multibuffer, to appending a newline at the end of the
selections current lines. This keeps the insertion within the excerpt of
the selection rather than adding a newline to the excerpt below.

Closes #47965

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:

- Fixed `editor::NewlineBelow` adding a newline to the next multibuffer
excerpt when selection is at the end of an excerpt

Add Kanayago as an available Ruby language server in default settings.
Disabled by default (prefixed with `!`), users can opt-in via their
settings.

This corresponds to the extension-side support added in
zed-extensions/ruby#224.

Release Notes:

- ruby: Added Kanayago as an available language server.

Release Notes:

- N/A

This brings the runtime down to logarithmic scaling of excerpts / linear
scaling of tokens.

Release Notes:

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

Reverts the editor's paragraph navigation behavior that was changed in
#47734. Whitespace-only lines are now treated as paragraph boundaries
again for non-vim mode users.

Vim mode retains its own implementation where only truly empty lines
are paragraph boundaries.

Release Notes:

- Fixed editor paragraph navigation to treat whitespace-only lines as
paragraph boundaries again

---------

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
Co-authored-by: dino <dinojoaocosta@gmail.com>

Release Notes:

- N/A

Release Notes:

- N/A

Also fixes batches upload

Release Notes:

- N/A

Update based on
https://platform.claude.com/docs/en/agent-sdk/overview#branding-guidelines

ACP package will be updated shortly.

Release Notes:

- acp: Claude Code is now referred to as Claude Agent, per Anthropic
branding guidelines.

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:

- N/A

Release Notes:

- Improved Bedrock error messages: region-locked models ask the user to
try a different region, rate limits and access errors are reported
cleanly instead of as raw API responses
- Streamlined Bedrock model list to 39 curated models
- Fixed API errors when using non-tool models in agent threads

---------

Co-authored-by: Ona <no-reply@ona.com>

It now creates multi-turn conversation, where first two messages are the
original teacher prompt and output.

This way, we'll have changes in teacher prompt automatically applied to
repair without having to explicitly sync them.


Release Notes:

- N/A

Release Notes:

- N/A

Closes #49081

Release Notes:

- N/A

Other changes:
- Changed tokenization to more code-aware tokenization from split-commit
- Fixed word-diff implementation which was inefficient and sometimes
incorrect

Release Notes:

- N/A

Release Notes:

- N/A

Closes #49067

See https://github.com/zed-industries/notify/pull/2 for more details

Note: notify already fixed this upstream, and I'm planning on using
their crate as our dependency once their v9 is officially released.

Release Notes:

- Fix panic that could occur when navigating external code

## Summary
- add a new crash issue-linking subagent prompt
(`.factory/prompts/crash/link-issues.md`)
- add a scheduled/manual GitHub workflow for week-one background-agent
runs (`.github/workflows/background_agent_mvp.yml`)
- add Sentry candidate selection script to rank top crashes by
solvability × population (`script/select-sentry-crash-candidates`)
- add a local dry-run runner for end-to-end MVP execution without
push/PR actions (`script/run-background-agent-mvp-local`)

## Guardrails in this MVP
- draft PRs only (no auto-merge)
- reviewer routing defaults to: `eholk,morgankrey,osiewicz,bennetbo`
- pipeline order is: investigate -> link-issues -> fix

## Validation
- `python3 -m py_compile script/select-sentry-crash-candidates
script/run-background-agent-mvp-local`
- `python3 script/select-sentry-crash-candidates --help`
- `python3 script/run-background-agent-mvp-local --help`

---------

Co-authored-by: John D. Swanson <swannysec@users.noreply.github.com>

This PR adds the list of the user's organizations to the `UserStore`.

Closes CLO-292.

Release Notes:

- N/A

Our strategy for keeping excerpts in sync between the two sides of the
split diff is generally

- mutate the excerpts on the RHS
- pull out the new excerpts for the affected path from the RHS
- translate those ranges to the LHS
- update the LHS excerpts with those ranges

But this can break down when the translated ranges overlap on the LHS
despite the original ranges not overlapping on the RHS. This can happen,
for example, when a large deletion in a file crosses several excerpt
boundaries. It's rare because normally excerpt boundaries in the project
diff and branch diff are adjusted to keep entire diff hunks in view, but
we defer this for dirty files, so it's not hard to trigger it when using
the agent or editing an individual file while the diff is open in
another tab.

Release Notes:

- Fixed a panic that could occur when editing files while the project
diff or branch diff was open.

---------

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

Release Notes:

- N/A

Closes #49172

- Fixes a regression on X11 where content size was divided by the scale
factor twice after the wgpu migration, causing half-sized rendering on
HiDPI screens.
- Aligns X11 [content_size()] behavior with Wayland by returning logical
pixel bounds directly.

Video :
[Screencast from 2026-02-14
18-58-36.webm](https://github.com/user-attachments/assets/cf4edf3b-7b93-4ded-bf46-e900be44b22b)


Release Notes:

- N/A

Closes #ISSUE

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 *or* Added/Fixed/Improved ...

---------

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

Release Notes:

- N/A

This PR removes some code left over from how we used to do impersonation
for local development.

The local development impersonation path is separate now, so we don't
need all of this plumbing in Collab.

Release Notes:

- N/A

This PR removes the `GET /rpc_server_snapshot` endpoint from Collab, as
it is not being used (and also didn't seem to be functional).

Release Notes:

- N/A

This PR removes the `POST /users/:id/access_tokens` endpoint from
Collab, as it is no longer used.

Closes CLO-290.

Release Notes:

- N/A

Re-lands https://github.com/zed-industries/zed/pull/48891, which was
reverted due to conflicts with multi-workspace.

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

Release Notes:

- N/A

This PR makes it so we install the necessary Linux dependencies for the
Collab deployment workflow.

Release Notes:

- N/A

This PR updates the Collab deployment workflow to be generated with
`cargo xtask workflows`.

Release Notes:

- N/A

This PR fixes the naming of the `WorkflowType::ExtensionCi` variant to
match Rust naming conventions.

Release Notes:

- N/A

This PR removes the two remaining steps in the Collab deployment
workflow to Namespace runners.

The previous `runs-on` labels were no longer functional.

Release Notes:

- N/A

This PR adds a button in the Git Panel to open the `git: branch diff`
view. The button only shows if the staging area is clean/no changes and
if the branch is not main/master. I've been using this action so much
these days and we should expose it on the UI so it's more discoverable.

<img width="500" height="1736" alt="Screenshot 2026-02-16 at 6  30@2x"
src="https://github.com/user-attachments/assets/0b037811-2167-419f-b63f-9bdb12e4352e"
/>

Release Notes:

- N/A

Release Notes:

- Fixed sticky headers sometimes disappearing when dealing with expanded
deleted diff hunks

Release Notes:

- Fixed an incorrect hover label for read-only file lock buttons

Second attempt at fixing
https://github.com/zed-industries/zed/pull/49047, this also removes some
of the sorting hacks as they should ideally not be necessary anymore
after this fix

Release Notes:

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