Reverts zed-industries/zed#44210

I am forced to revert this PR as it completely breaks release builds
with the following panic:

```
thread 'main' (2648653) panicked at crates/rope/src/rope.rs:893:25:
byte index 73 is not a char boundary; it is inside 'স' (bytes 71..74) of `কৰক</translation>
<translation id="9216898458513705996">টেবসমূহ এই ডিভাইচত খোলা `
stack backtrace:
2026-01-23T15:37:48+01:00 INFO  [node_runtime] using Zed managed Node.js at /Users/kubkon/Library/Application Support/Zed/node/node-v24.11.0-darwin-arm64 since system Node.js wasn't found on PATH: cannot find binary path
   0: __rustc::rust_begin_unwind
             at /rustc/ded5c06cf21d2b93bffd5d884aa6e96934ee4234/library/std/src/panicking.rs:698:5
   1: core::panicking::panic_fmt
             at /rustc/ded5c06cf21d2b93bffd5d884aa6e96934ee4234/library/core/src/panicking.rs:80:14
   2: core::str::slice_error_fail_rt
   3: core::str::slice_error_fail
             at /rustc/ded5c06cf21d2b93bffd5d884aa6e96934ee4234/library/core/src/str/mod.rs:69:5
   4: core::str::traits::<impl core::slice::index::SliceIndex<str> for core::ops::range::Range<usize>>::index
             at /rustc/ded5c06cf21d2b93bffd5d884aa6e96934ee4234/library/core/src/str/traits.rs:248:21
   5: <str as core::ops::index::Index<core::ops::range::Range<usize>>>::index
             at /rustc/ded5c06cf21d2b93bffd5d884aa6e96934ee4234/library/core/src/str/traits.rs:63:15
   6: <rope::Chunks>::peek
             at /Users/kubkon/dev/zed/crates/rope/src/rope.rs:893:25
   7: <rope::Lines>::next
             at /Users/kubkon/dev/zed/crates/rope/src/rope.rs:1111:45
   8: <project::lsp_store::LspStore>::parse_modeline
             at /Users/kubkon/dev/zed/crates/project/src/lsp_store.rs:4570:43
   9: <project::lsp_store::LspStore>::on_buffer_added
             at /Users/kubkon/dev/zed/crates/project/src/lsp_store.rs:4301:14
  10: <project::lsp_store::LspStore>::on_buffer_store_event
             at /Users/kubkon/dev/zed/crates/project/src/lsp_store.rs:4166:22
  11: <<project::lsp_store::LspStore>::on_buffer_store_event as core::ops::function::FnMut<(&mut project::lsp_store::LspStore, gpui::app::entity_map::Entity<project::buffer_store::BufferStore>, &project::buffer_store::BufferStoreEvent, &mut gpui::app::context::Context<project::lsp_store::LspStore>)>>::call_mut
             at /rustc/ded5c06cf21d2b93bffd5d884aa6e96934ee4234/library/core/src/ops/function.rs:166:5
  12: <gpui::app::context::Context<project::lsp_store::LspStore>>::subscribe::<project::buffer_store::BufferStore, project::buffer_store::BufferStoreEvent, <project::lsp_store::LspStore>::on_buffer_store_event>::{closure#0}::{closure#0}
             at /Users/kubkon/dev/zed/crates/gpui/src/app/context.rs:111:44
  13: <gpui::app::App as gpui::AppContext>::update_entity::<project::lsp_store::LspStore, (), <gpui::app::context::Context<project::lsp_store::LspStore>>::subscribe<project::buffer_store::BufferStore, project::buffer_store::BufferStoreEvent, <project::lsp_store::LspStore>::on_buffer_store_event>::{closure#0}::{closure#0}>::{closure#0}
             at /Users/kubkon/dev/zed/crates/gpui/src/app.rs:2281:26
  14: <gpui::app::App>::update::<(), <gpui::app::App as gpui::AppContext>::update_entity<project::lsp_store::LspStore, (), <gpui::app::context::Context<project::lsp_store::LspStore>>::subscribe<project::buffer_store::BufferStore, project::buffer_store::BufferStoreEvent, <project::lsp_store::LspStore>::on_buffer_store_event>::{closure#0}::{closure#0}>::{closure#0}>
             at /Users/kubkon/dev/zed/crates/gpui/src/app.rs:818:22
  15: <gpui::app::App as gpui::AppContext>::update_entity::<project::lsp_store::LspStore, (), <gpui::app::context::Context<project::lsp_store::LspStore>>::subscribe<project::buffer_store::BufferStore, project::buffer_store::BufferStoreEvent, <project::lsp_store::LspStore>::on_buffer_store_event>::{closure#0}::{closure#0}>
             at /Users/kubkon/dev/zed/crates/gpui/src/app.rs:2279:14
  16: <gpui::app::entity_map::Entity<project::lsp_store::LspStore>>::update::<(), gpui::app::App, <gpui::app::context::Context<project::lsp_store::LspStore>>::subscribe<project::buffer_store::BufferStore, project::buffer_store::BufferStoreEvent, <project::lsp_store::LspStore>::on_buffer_store_event>::{closure#0}::{closure#0}>
             at /Users/kubkon/dev/zed/crates/gpui/src/app/entity_map.rs:445:12
  17: <gpui::app::context::Context<project::lsp_store::LspStore>>::subscribe::<project::buffer_store::BufferStore, project::buffer_store::BufferStoreEvent, <project::lsp_store::LspStore>::on_buffer_store_event>::{closure#0}
             at /Users/kubkon/dev/zed/crates/gpui/src/app/context.rs:111:22
  18: <gpui::app::App>::subscribe_internal::<project::buffer_store::BufferStore, project::buffer_store::BufferStoreEvent, <gpui::app::context::Context<project::lsp_store::LspStore>>::subscribe<project::buffer_store::BufferStore, project::buffer_store::BufferStoreEvent, <project::lsp_store::LspStore>::on_buffer_store_event>::{closure#0}>::{closure#0}
             at /Users/kubkon/dev/zed/crates/gpui/src/app.rs:964:25
  19: <alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>> as core::ops::function::FnMut<(&dyn core::any::Any, &mut gpui::app::App)>>::call_mut
             at /rustc/ded5c06cf21d2b93bffd5d884aa6e96934ee4234/library/alloc/src/boxed.rs:2012:9
  20: <gpui::app::App>::apply_emit_effect::{closure#0}
             at /Users/kubkon/dev/zed/crates/gpui/src/app.rs:1407:21
  21: <gpui::subscription::SubscriberSet<gpui::app::entity_map::EntityId, (core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>>::retain::<<gpui::app::App>::apply_emit_effect::{closure#0}>::{closure#1}
             at /Users/kubkon/dev/zed/crates/gpui/src/subscription.rs:132:17
  22: <alloc::collections::btree::map::BTreeMap<usize, gpui::subscription::Subscriber<(core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>>>::retain::<<gpui::subscription::SubscriberSet<gpui::app::entity_map::EntityId, (core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>>::retain<<gpui::app::App>::apply_emit_effect::{closure#0}>::{closure#1}>::{closure#0}
             at /rustc/ded5c06cf21d2b93bffd5d884aa6e96934ee4234/library/alloc/src/collections/btree/map.rs:1177:37
  23: <alloc::collections::btree::map::ExtractIfInner<usize, gpui::subscription::Subscriber<(core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>, core::ops::range::RangeFull>>::next::<<alloc::collections::btree::map::BTreeMap<usize, gpui::subscription::Subscriber<(core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>>>::retain<<gpui::subscription::SubscriberSet<gpui::app::entity_map::EntityId, (core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>>::retain<<gpui::app::App>::apply_emit_effect::{closure#0}>::{closure#1}>::{closure#0}, alloc::alloc::Global>
             at /rustc/ded5c06cf21d2b93bffd5d884aa6e96934ee4234/library/alloc/src/collections/btree/map.rs:2036:16
  24: <alloc::collections::btree::map::ExtractIf<usize, gpui::subscription::Subscriber<(core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>, core::ops::range::RangeFull, <alloc::collections::btree::map::BTreeMap<usize, gpui::subscription::Subscriber<(core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>>>::retain<<gpui::subscription::SubscriberSet<gpui::app::entity_map::EntityId, (core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>>::retain<<gpui::app::App>::apply_emit_effect::{closure#0}>::{closure#1}>::{closure#0}> as core::iter::traits::iterator::Iterator>::next
             at /rustc/ded5c06cf21d2b93bffd5d884aa6e96934ee4234/library/alloc/src/collections/btree/map.rs:2002:20
  25: <alloc::collections::btree::map::ExtractIf<usize, gpui::subscription::Subscriber<(core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>, core::ops::range::RangeFull, <alloc::collections::btree::map::BTreeMap<usize, gpui::subscription::Subscriber<(core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>>>::retain<<gpui::subscription::SubscriberSet<gpui::app::entity_map::EntityId, (core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>>::retain<<gpui::app::App>::apply_emit_effect::{closure#0}>::{closure#1}>::{closure#0}> as core::iter::traits::iterator::Iterator>::fold::<(), core::iter::traits::iterator::Iterator::for_each::call<(usize, gpui::subscription::Subscriber<(core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>), core::mem::drop<(usize, gpui::subscription::Subscriber<(core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>)>>::{closure#0}>
             at /rustc/ded5c06cf21d2b93bffd5d884aa6e96934ee4234/library/core/src/iter/traits/iterator.rs:2602:34
  26: <alloc::collections::btree::map::ExtractIf<usize, gpui::subscription::Subscriber<(core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>, core::ops::range::RangeFull, <alloc::collections::btree::map::BTreeMap<usize, gpui::subscription::Subscriber<(core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>>>::retain<<gpui::subscription::SubscriberSet<gpui::app::entity_map::EntityId, (core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>>::retain<<gpui::app::App>::apply_emit_effect::{closure#0}>::{closure#1}>::{closure#0}> as core::iter::traits::iterator::Iterator>::for_each::<core::mem::drop<(usize, gpui::subscription::Subscriber<(core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>)>>
             at /rustc/ded5c06cf21d2b93bffd5d884aa6e96934ee4234/library/core/src/iter/traits/iterator.rs:828:14
  27: <alloc::collections::btree::map::BTreeMap<usize, gpui::subscription::Subscriber<(core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>>>::retain::<<gpui::subscription::SubscriberSet<gpui::app::entity_map::EntityId, (core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>>::retain<<gpui::app::App>::apply_emit_effect::{closure#0}>::{closure#1}>
             at /rustc/ded5c06cf21d2b93bffd5d884aa6e96934ee4234/library/alloc/src/collections/btree/map.rs:1177:46
  28: <gpui::subscription::SubscriberSet<gpui::app::entity_map::EntityId, (core::any::TypeId, alloc::boxed::Box<dyn for<'a, 'b> core::ops::function::FnMut<(&'a dyn core::any::Any, &'b mut gpui::app::App), Output = bool>>)>>::retain::<<gpui::app::App>::apply_emit_effect::{closure#0}>
             at /Users/kubkon/dev/zed/crates/gpui/src/subscription.rs:130:21
  29: <gpui::app::App>::apply_emit_effect
             at /Users/kubkon/dev/zed/crates/gpui/src/app.rs:1405:14
  30: <gpui::app::App>::flush_effects
             at /Users/kubkon/dev/zed/crates/gpui/src/app.rs:1308:31
  31: <gpui::app::App>::finish_update
             at /Users/kubkon/dev/zed/crates/gpui/src/app.rs:830:18
  32: <gpui::app::App>::update::<core::result::Result<(), anyhow::Error>, <gpui::app::App as gpui::AppContext>::update_entity<project::buffer_store::BufferStore, core::result::Result<(), anyhow::Error>, <project::buffer_store::LocalBufferStore>::open_buffer::{closure#1}::{closure#0}::{closure#3}>::{closure#0}>
             at /Users/kubkon/dev/zed/crates/gpui/src/app.rs:819:14
  33: <gpui::app::App as gpui::AppContext>::update_entity::<project::buffer_store::BufferStore, core::result::Result<(), anyhow::Error>, <project::buffer_store::LocalBufferStore>::open_buffer::{closure#1}::{closure#0}::{closure#3}>
             at /Users/kubkon/dev/zed/crates/gpui/src/app.rs:2279:14
  34: <gpui::app::async_context::AsyncApp as gpui::AppContext>::update_entity::<project::buffer_store::BufferStore, core::result::Result<(), anyhow::Error>, <project::buffer_store::LocalBufferStore>::open_buffer::{closure#1}::{closure#0}::{closure#3}>
             at /Users/kubkon/dev/zed/crates/gpui/src/app/async_context.rs:65:13
  35: <gpui::app::entity_map::WeakEntity<project::buffer_store::BufferStore>>::update::<gpui::app::async_context::AsyncApp, core::result::Result<(), anyhow::Error>, <project::buffer_store::LocalBufferStore>::open_buffer::{closure#1}::{closure#0}::{closure#3}>
             at /Users/kubkon/dev/zed/crates/gpui/src/app/entity_map.rs:750:15
  36: <project::buffer_store::LocalBufferStore>::open_buffer::{closure#1}::{closure#0}::<i32>
             at /Users/kubkon/dev/zed/crates/project/src/buffer_store.rs:683:18
  37: <gpui::app::context::Context<project::buffer_store::BufferStore>>::spawn::<<project::buffer_store::LocalBufferStore>::open_buffer::{closure#1}, core::result::Result<gpui::app::entity_map::Entity<language::buffer::Buffer>, anyhow::Error>>::{closure#0}::{closure#0}::<i32>
             at /Users/kubkon/dev/zed/crates/gpui/src/app/context.rs:244:52
  38: <gpui::app::App>::spawn::<<gpui::app::context::Context<project::buffer_store::BufferStore>>::spawn<<project::buffer_store::LocalBufferStore>::open_buffer::{closure#1}, core::result::Result<gpui::app::entity_map::Entity<language::buffer::Buffer>, anyhow::Error>>::{closure#0}, core::result::Result<gpui::app::entity_map::Entity<language::buffer::Buffer>, anyhow::Error>>::{closure#0}
             at /Users/kubkon/dev/zed/crates/gpui/src/app.rs:1532:44
  39: <scheduler::executor::spawn_local_with_source_location::Checked<<gpui::app::App>::spawn<<gpui::app::context::Context<project::buffer_store::BufferStore>>::spawn<<project::buffer_store::LocalBufferStore>::open_buffer::{closure#1}, core::result::Result<gpui::app::entity_map::Entity<language::buffer::Buffer>, anyhow::Error>>::{closure#0}, core::result::Result<gpui::app::entity_map::Entity<language::buffer::Buffer>, anyhow::Error>>::{closure#0}> as core::future::future::Future>::poll
             at /Users/kubkon/dev/zed/crates/scheduler/src/executor.rs:393:64
  40: <async_task::raw::RawTask<scheduler::executor::spawn_local_with_source_location::Checked<<gpui::app::App>::spawn<<gpui::app::context::Context<project::buffer_store::BufferStore>>::spawn<<project::buffer_store::LocalBufferStore>::open_buffer::{closure#1}, core::result::Result<gpui::app::entity_map::Entity<language::buffer::Buffer>, anyhow::Error>>::{closure#0}, core::result::Result<gpui::app::entity_map::Entity<language::buffer::Buffer>, anyhow::Error>>::{closure#0}>, core::result::Result<gpui::app::entity_map::Entity<language::buffer::Buffer>, anyhow::Error>, <scheduler::executor::ForegroundExecutor>::spawn<<gpui::app::App>::spawn<<gpui::app::context::Context<project::buffer_store::BufferStore>>::spawn<<project::buffer_store::LocalBufferStore>::open_buffer::{closure#1}, core::result::Result<gpui::app::entity_map::Entity<language::buffer::Buffer>, anyhow::Error>>::{closure#0}, core::result::Result<gpui::app::entity_map::Entity<language::buffer::Buffer>, anyhow::Error>>::{closure#0}>::{closure#0}, scheduler::RunnableMeta>>::run
             at /Users/kubkon/.cargo/git/checkouts/async-task-e468f817236eac43/b4486cd/src/raw.rs:296:17
  41: <async_task::runnable::Runnable<scheduler::RunnableMeta>>::run
             at /Users/kubkon/.cargo/git/checkouts/async-task-e468f817236eac43/b4486cd/src/runnable.rs:788:18
  42: gpui::platform::mac::dispatcher::trampoline
             at /Users/kubkon/dev/zed/crates/gpui/src/platform/mac/dispatcher.rs:248:14
  43: <unknown>
  44: <unknown>
  45: <unknown>
  46: <unknown>
  47: <unknown>
  48: <unknown>
  49: <unknown>
  50: <unknown>
  51: <unknown>
  52: <unknown>
  53: <unknown>
  54: <unknown>
  55: <unknown>
  56: <unknown>
  57: <unknown>
  58: <gpui::platform::mac::platform::MacPlatform as gpui::platform::Platform>::run
             at /Users/kubkon/dev/zed/crates/gpui/src/platform/mac/platform.rs:473:17
  59: <gpui::app::Application>::run::<zed::main::{closure#9}>
             at /Users/kubkon/dev/zed/crates/gpui/src/app.rs:192:18
  60: zed::main
             at /Users/kubkon/dev/zed/crates/zed/src/main.rs:419:9
  61: <fn() as core::ops::function::FnOnce<()>>::call_once
             at /rustc/ded5c06cf21d2b93bffd5d884aa6e96934ee4234/library/core/src/ops/function.rs:250:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
```

cc @ConradIrwin @elmarco

This PR fixes a crash in LoadingLabel where the loading animation
progressively revealed text by slicing with byte offsets (.len()), which
can panic for UTF-8 multi-byte characters (e.g., CJK) and emoji.

Release Notes:

- Fix a crash in LoadingLabel’s loading animation when displaying CJK or
emoji text.

Enables restoration of empty workspaces (without folders) that contain
unsaved items like drafts or single files. Empty workspaces are now
identified by workspace_id rather than paths, allowing multiple empty
workspaces to coexist and be properly restored on startup. This ensures
users don't lose work when closing Zed with unsaved files in empty
workspaces.

Closes #15098

Release Notes:

- Improved: Empty workspaces with unsaved files now restore on startup
(hot-exit)

---------

Co-authored-by: Kirill Bulatov <kirill@zed.dev>

Adds a new setting to GitHub Copilot to toggle the Next Edit Suggestions
feature, it is enabled by default.

## Motivations
Due to some current usability issues with this feature, see #46880, and
some personal anecdotes of using it, it is currently rough to utilize,
so this gives the option to disable it.

## Related
- #47071 
- #30124
- #44486
## Release Notes
- Adds the ability to disable GitHub Copilot's Next Edit Suggestions
feature.
## User Interface

![image](https://github.com/user-attachments/assets/5a3d7166-68dd-4f5b-a220-0a9bd9282cd5)
## Text Example
The text example will be adding a `z` variable to a `Point3D` class in
TypeScript.
### With Next Edit Suggestions
In this example I am able to just press auto-complete (press TAB) 3x.
```ts
class Point3D {
    x: number;
    y: number;
    z: number; // <-- Cursor before z: suggested

    constructor(x: number, 
                y: number
                , z: number // <-- Next Suggestion
                ) { 
        this.x = x;
        this.y = y;
        this.z = z; // <-- Last Suggestion
    }
}
```
### Without Next Edit Suggestions
```ts
class Point3D {
    x: number;
    y: number;
    z: number; // <-- Cursor before z: the only suggestion

    constructor(x: number, y: number) {
        this.x = x;
        this.y = y;
    }
}
```

Closes #46125.

Before:
<img width="716" height="367" alt="before"
src="https://github.com/user-attachments/assets/ce96d3bc-9e90-4eb7-9309-37cc9599e9d9"
/>

After:
<img width="690" height="345" alt="after"
src="https://github.com/user-attachments/assets/5d8c84a4-5fe8-4f7c-9e4f-137b5f077171"
/>

Release Notes:

- Updated tree-sitter-c for highlighting attribute specifier in C

We might interface with the LSP using URL heres across remotes that have
differing path styles which then breaks every now and then when we have
windows to unix connections. This should helps us fix these occurences
more correctly

Release Notes:

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

For the following code, we didn't show anything; after the fix, they are
shown in the outline:

<img width="617" height="170" alt="image"
src="https://github.com/user-attachments/assets/091a905c-7c1c-4c3a-935f-65c2cd5ae2e5"
/>


Release Notes:

- Fix uninitiated var declaration is not shown in outline.

This allows extensions to add more than one snippet file whilst keeping
it backwards compatible.

Release Notes:

- Added support for specifying multiple snippets paths in extensions.

Release Notes:

- N/A

---------

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

Release Notes:

- acp: Add the ability to install new Agents via the ACP Registry

Release Notes:

- Improved @ file completions in agent panel to be more accurate

This is behind the beta flag. But some agents don't support a full load
flow, but rather just a resume from the current state of the session.
They don't emit notifications for past thread messages, which isn't
ideal, but the user can at least resume their work without completely
losing it.

We use it as a fallback if the agent doesn't support loading only, and
signal to the user that they won't be able to see previous messages.

Release Notes:

- N/A

Closes https://github.com/zed-industries/zed/issues/47330

This PR moves the queue logic out of the native Thread into the shared
UI layer (thread view) to enable it for external agents. There's a key
difference in behavior, though, between native and external agents:
queued messages in the former will be sent in the next turn boundary,
given we can easily tell this, whereas for the latter, queued messages
will be sent by the end of the generation. We'd need an ACP-level change
to provide exactly the same UX between both types of agents, and I
figured that's better to have _some_ version of the feature for external
agents as opposed to not having it all due to this difference.

Release Notes:

- Agent: Made the message queue feature available for external agents as
well.

Closes #47309

Rewroked the file parsing loop so that if one file is missing it doesn't
cause the loop to exit prematurely.

Release Notes:
* Fixed issue where user .ssh/config file would not parse if global ssh
config file was not present.

---------

Co-authored-by: Gaff <226665+Gaff@users.noreply.github.com>

Closes #47128

Release Notes:

- Relax the checks on `xdg_wm_base` to ensure compatibility with Weston
9.

It's been running out of operations before it could do everything it's
supposed to do.

Release Notes:

- N/A

The git graph view was missing a `cx.notify` when it loaded commits from
the data layer, causing the graph to seem unresponsive until a render
was triggered by something else.

Release Notes:

- N/A

Many editors such as vim and emacs support "modelines", a comment at the
beginning of the file that allows the file type to be explicitly
specified along with per-file specific settings

- The amount of configurations, style and settings mapping cannot be
handled in one go, so this opens up a lot of potential improvements.
- I left out the possiblity to have "zed" specific modelines for now,
but this could be potentially interesting.
- Mapping the mode or filetype to zed language names isn't obvious
either. We may want to make it configurable.

This is my first contribution to zed, be kind. I struggled a bit to find
the right place to add those settings. I use a similar approach as done
with editorconfig (merge_with_editorconfig). There might be better ways.

Closes #4762

Release Notes:

- Add basic emacs/vim modeline support.

Supersedes #41899, changes:
- limit reading to the first and last 1kb
- add documentation
- more variables handled
- add Arc around ModelineSettings to avoid extra cloning
- changed the way mode -> language mapping is done, thanks to
`modeline_aliases` language config
- drop vim ex: support
- made "Local Variables:" handling a separate commit, so we can drop it
easily
- various code style improvements

---------

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>

Multiline review comments. Also changes a few existing review comment
types to use anchors instead of absolute offsets

Release Notes:

- N/A

Closes #26866

### Summary
Adds a git graph to Zed, accessible via the `git_graph::Open` action if
a project has an active repository. There's still more to do, but this
is a solid foundation to expand upon. The code structure is in line with
Zed's codebase and shouldn't require architectural changes to add
missing features.

The git graph can be opened via the command palette (`git graph: open`)
or by binding a key to `git_graph::Open`. It's available when the
project has an active git repository.

### Architecture

Similar to the Debugger, the git graph is split between a data layer and
a view/UI layer. When the view layer is rendering, it queries the data
layer for its active state. This setup allows the data layer to lazily
request graph data (only when needed for rendering), abstracts collab
from the view layer, allows most of the data loading to happen on a
background thread, and makes caching easy to implement.

#### Graph Loading

The graph data is loaded in two phases:
1. `Repository::graph_data()` streams commit structure (SHA, parents,
refs) in chunks of 1000 via `git log`
2. `CommitDataReader` lazily fetches full commit details (author,
timestamp, subject) on-demand using a persistent `git cat-file --batch`
process

This two-phase approach makes the initial loading of the graph as fast
as possible, because `git log` takes significantly longer when all the
needed graph data is queried through it. Zed then lazily loads commits
in the user's viewport through `cat-file --batch`. This makes scrolling
to any place in the graph extremely snappy and benefits the
collaborative architecture by only fetching data needed to render the
graph. It also allows Zed to share commit data between different graph
visualizations (e.g., date order vs. topological order).

#### Performance

Tested on both the Zed and LLVM repositories with good performance in
both cases. The two-phase loading approach and lazy fetching keep the UI
responsive even with large commit histories.

#### Testing 

I added property testing that builds randomized commit graphs and
verifies that the graph is constructed correctly. This also works as an
integration test and will be expanded in the future to test collab graph
visualization, graph filtering, commit actions, etc.

### New Crate
- `git_graph` (GPL-licensed) — contains UI and graph computation logic

### Not Yet Implemented
- Remote repository support (collab)
- Filtering by branch
- Commit actions (checkout, cherry-pick, etc.)
- Search
- Open commit view for selected commit
- Resizable columns 
- Column filtering

#### Reference
<img width="1624" height="976" alt="Screenshot 2025-01-22 at 8 15 39 PM"
src="https://github.com/user-attachments/assets/0f10924a-3964-462f-b320-42d84d02f7bf"
/>

Special thanks to [Alberto Slavica](https://github.com/pyundev) for
submitting #44405, which was a good base to work off of.

Release Notes:

- git: Add initial version of git graph

---------

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

Closes #46191

Release Notes:

- Make the auto signature popover — `"auto_signature_help": true` —
respect `hover_popover_delay`.

When committing, it was possible for the left-hand side multibuffer to
get the updated base text (via the `buffer_changed_since_sync`
mechanism) without updating its diff snapshot for that buffer (via the
diff subscription), causing a mismatch between that multibuffer's diff
state and its buffer state. The fix is to ensure for inverted diffs that
we always update pull an updated diff snapshot as part of
`sync_from_buffer_changes`.

This also removes some code that we added in #44838 to sync the
left-hand side multibuffer when edits on the right-hand side invalided
diff hunks. Instead, the left-hand side will just sync the next time the
diff recalculates when this happens, and will always consider hunks from
the last diff calculation as valid--so there will be a short window
where the diff transforms and `diff_hunks_in_range` don't match between
the two sides. That's okay because we don't rely on this in the display
map--the code that translates positions between the two sides accesses
the diff's `InternalDiffHunk`s directly rather than going through a
multibuffer API.

Release Notes:

- N/A

Release Notes:

- N/A

It turns out Alacritty sends `AlacTermEvent::ColorRequest` when using
the fish shell. That path relies on `cx.theme`, so this change is needed
for it to pass.

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

Release Notes:

- N/A

This PR updates the .mailmap file to merge some more commit authors.

Release Notes:

- N/A

This PR adds a thinking toggle for controlling whether to use thinking
for a model in the Zed provider:

<img width="645" height="142" alt="Screenshot 2026-01-22 at 12 34 01 PM"
src="https://github.com/user-attachments/assets/9aa543fe-e708-4840-8b38-1a6fbcb78388"
/>

Previously we would create separate "Thinking" variants of the models
that supported thinking in the model selector.

This only applies to Anthropic models in the Zed provider, currently.

This is gated behind the `cloud-thinking-toggle` feature flag.

Release Notes:

- N/A

---------

Co-authored-by: Neel <neel@zed.dev>

Closes #44003

Supersedes https://github.com/zed-industries/zed/pull/45777

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

Release Notes:

- Fixed an issue where the terminal would sometimes fail to write shell
history.

---------

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

Release Notes:

- N/A

Adds a new "Agent Panel Error Shown" telemetry event that fires when
users see errors in the agent panel. For errors from external ACP agents
(like Claude Code), we capture additional details.

Previously, we had no visibility into what errors users were
encountering in the agent panel. This made it difficult to diagnose
issues, especially with external agents.

The new telemetry event includes:
- `agent` — The agent telemetry ID
- `session_id` — The session ID
- `kind` — Error category (payment_required, authentication_required,
refusal, other, etc.)
- `acp_error_code` — The ACP error code when available (e.g.,
"InternalError")
- `acp_error_message` — The ACP error message when available

Release Notes:

- N/A

---------

Co-authored-by: Michael Benfield <mbenfield@zed.dev>

Release Notes:

- N/A

Closes #46852

The devcontainer CLI which ships with VS Code can be added to the user's
`PATH` with the VS Code command `Dev Containers: Install devcontainer
CLI`. This version of the CLI is older than what Zed was developed with,
and as a result, it doesn't separate its json-formatted output and its
plaintext metadata into distinct output streams. This broke parsing in
the CLI adapter in Zed. This fix accounts for that, and if parsing
fails, attempts to find a relevant JSON object in plaintext and tries to
parse that.

Tested with VSCode's version of the devcontainer CLI (`0.80.1`) as well
as the up-to-date version (`0.81.1`)

Release Notes:

- Improved parsing of devcontainer CLI output when using earlier
versions

Closes #4568

Release Notes:

- Fixed project-less workspaces not persisting their dock state

Co-authored-by: Kirill Bulatov <kirill@zed.dev>

Release Notes: 

- Import VS Code Insiders and VSCodium Insiders user settings
(`settings.json`).

Note:
- If multiple VS Code-family installs have a `settings.json`, Zed
selects the last matching path in its search order (so Insiders is
preferred over stable when both exist).

Release Notes:

- Fixed clear hovered link when no target found

Signed-off-by: Xiaobo Liu <cppcoffee@gmail.com>

This reverts commit 8842cc696f55097de54a5cd7228afdd8f8acb883.


https://github.com/zed-industries/zed/commit/1062e2c5a9e9764b58c5c3fdec6a5b9bddd1dd2e
was landed interim which has a test that's broken now.

Something-something build queue.

Closes #ISSUE

Release Notes:

- N/A

Release Notes:

- N/A

Closes #45912

Release Notes:

- Made apostrophes not brackets in markdown

Closes #ISSUE

Release Notes:

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

Closes #38769

Release Notes:

- Dismiss server notifications automatically with
`"global_lsp_settings": { "notifications": { "dismiss_timeout_ms": 5000
} }` settings defaults.

---------

Co-authored-by: Kirill Bulatov <kirill@zed.dev>

Coming from discussion on #25936 and
https://github.com/zed-industries/zed/pull/19756 .
This PR introduces the KernelSession abstraction and adds basic notebook
cell execution inside NotebookEditor.

The following provides a base starter for the development on Notebooks.

What this PR includes today:

Release Notes:

- KernelSession trait extracted. Both REPL and NotebookEditor now share
the same routing mechanism.
- NotebookEditor can launch kernels, execute code cells, and display
outputs.
- Basic cell operations: run current cell, run all, move up/down, add
code/markdown blocks. Keybindings follow Jupyter defaults.


Next Steps:

- [x] Editing support for markdown and code blocks.
- Buffer integration instead of temporary cell text.
- [x] Proper focus behavior when executing or adding cells.
- Kernel control UI.

A little far fetched steps:

- Vim Support
- Cell Handling Improvement and other convenient features and design
from other editors
- Ability to have better parsing for AI Support. 


I have attached a video of showcasing some of the features:


https://github.com/user-attachments/assets/37e6f3e5-2022-45f0-a73d-2dd01ebc2932

Closes https://github.com/zed-industries/zed/issues/47353

Release Notes:

- Settings Editor: Fixed a bug with the number field rendering of the
font weight setting.

Closes https://github.com/zed-industries/zed/issues/47347

Release Notes:

- Agent: Fixed a bug where the inline assistant feedback buttons where
being displayed despite the setting "Enable Feedback" was turned off.

Closes #45994 

Per the JSON-RPC specification, `params` "MUST be provided as a
Structured value" or the member "MAY be omitted." See specification
here: https://www.jsonrpc.org/specification#request_object

The code was passing in unit `()` for params which serde_json was
serializing to `null` which is not valid.

This pulls request adds an `is_unit` function and annotates the `params`
fields in the `Request` and `Notification` structs with the following:
 ```rs
#[serde(default, skip_serializing_if = "is_unit")]
```

so that the field will be omitted if the type is unit. This does also introduce a `'static` bound to these structs.

> [!WARNING]
> While this seems to me like a simple change, I am not super familiar with Rust, please look at this PR with extra scrutiny. The last thing I want to do is break everyone's LSP integration.


Release Notes:
- LSP integrations: send language server shutdown requests with correct parameters

Some users were a bit confused that the history between zed agent + text
threads is split up now. Making it a bit clearer for the users still
using text threads which history they are currently looking at.

Release Notes:

- N/A

Release Notes:

- N/A

Release Notes:

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

Closes [#ISSUE](https://github.com/zed-industries/zed/issues/14489)

Release Notes:

- Fix Rust enum variants with no lower-case highlighted as constants

Screenshot:

<img width="401" height="280" alt="image"
src="https://github.com/user-attachments/assets/cd67a576-3c41-452d-9c6b-b3c259cee556"
/>

Release Notes:

- Add missing #elifdef, #elifndef directives to C/C++ highlights.

Release Notes:

- N/A

Changing the name to better capture what this message does and also
avoid confusion with the actual session/resume method in ACP

Release Notes:

- N/A