diff --git a/.github/actionlint.yml b/.github/actionlint.yml
index 6bfbc27705..ad09545902 100644
--- a/.github/actionlint.yml
+++ b/.github/actionlint.yml
@@ -5,25 +5,25 @@ self-hosted-runner:
     # GitHub-hosted Runners
     - github-8vcpu-ubuntu-2404
     - github-16vcpu-ubuntu-2404
+    - github-32vcpu-ubuntu-2404
+    - github-8vcpu-ubuntu-2204
+    - github-16vcpu-ubuntu-2204
+    - github-32vcpu-ubuntu-2204
+    - github-16vcpu-ubuntu-2204-arm
     - windows-2025-16
     - windows-2025-32
     - windows-2025-64
-    # Buildjet Ubuntu 20.04 - AMD x86_64
-    - buildjet-2vcpu-ubuntu-2004
-    - buildjet-4vcpu-ubuntu-2004
-    - buildjet-8vcpu-ubuntu-2004
-    - buildjet-16vcpu-ubuntu-2004
-    - buildjet-32vcpu-ubuntu-2004
-    # Buildjet Ubuntu 22.04 - AMD x86_64
-    - buildjet-2vcpu-ubuntu-2204
-    - buildjet-4vcpu-ubuntu-2204
-    - buildjet-8vcpu-ubuntu-2204
-    - buildjet-16vcpu-ubuntu-2204
-    - buildjet-32vcpu-ubuntu-2204
-    # Buildjet Ubuntu 22.04 - Graviton aarch64
-    - buildjet-8vcpu-ubuntu-2204-arm
-    - buildjet-16vcpu-ubuntu-2204-arm
-    - buildjet-32vcpu-ubuntu-2204-arm
+    # Namespace Ubuntu 20.04 (Release builds)
+    - namespace-profile-16x32-ubuntu-2004
+    - namespace-profile-32x64-ubuntu-2004
+    - namespace-profile-16x32-ubuntu-2004-arm
+    - namespace-profile-32x64-ubuntu-2004-arm
+    # Namespace Ubuntu 22.04 (Everything else)
+    - namespace-profile-2x4-ubuntu-2204
+    - namespace-profile-4x8-ubuntu-2204
+    - namespace-profile-8x16-ubuntu-2204
+    - namespace-profile-16x32-ubuntu-2204
+    - namespace-profile-32x64-ubuntu-2204
     # Self Hosted Runners
     - self-mini-macos
     - self-32vcpu-windows-2022
diff --git a/.github/actions/build_docs/action.yml b/.github/actions/build_docs/action.yml
index a7effad247..d2e62d5b22 100644
--- a/.github/actions/build_docs/action.yml
+++ b/.github/actions/build_docs/action.yml
@@ -13,7 +13,7 @@ runs:
       uses: swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2
       with:
         save-if: ${{ github.ref == 'refs/heads/main' }}
-        cache-provider: "buildjet"
+        # cache-provider: "buildjet"
 
     - name: Install Linux dependencies
       shell: bash -euxo pipefail {0}
diff --git a/.github/workflows/bump_patch_version.yml b/.github/workflows/bump_patch_version.yml
index 8a48ff96f1..bfaf7a271b 100644
--- a/.github/workflows/bump_patch_version.yml
+++ b/.github/workflows/bump_patch_version.yml
@@ -16,7 +16,7 @@ jobs:
   bump_patch_version:
     if: github.repository_owner == 'zed-industries'
     runs-on:
-      - buildjet-16vcpu-ubuntu-2204
+      - namespace-profile-16x32-ubuntu-2204
     steps:
       - name: Checkout code
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 43d305faae..84907351fe 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -137,7 +137,7 @@ jobs:
       github.repository_owner == 'zed-industries' &&
       needs.job_spec.outputs.run_tests == 'true'
     runs-on:
-      - buildjet-8vcpu-ubuntu-2204
+      - namespace-profile-8x16-ubuntu-2204
     steps:
       - name: Checkout repo
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
@@ -168,7 +168,7 @@ jobs:
     needs: [job_spec]
     if: github.repository_owner == 'zed-industries'
     runs-on:
-      - buildjet-8vcpu-ubuntu-2204
+      - namespace-profile-4x8-ubuntu-2204
     steps:
       - name: Checkout repo
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
@@ -221,7 +221,7 @@ jobs:
       github.repository_owner == 'zed-industries' &&
       (needs.job_spec.outputs.run_tests == 'true' || needs.job_spec.outputs.run_docs == 'true')
     runs-on:
-      - buildjet-8vcpu-ubuntu-2204
+      - namespace-profile-8x16-ubuntu-2204
     steps:
       - name: Checkout repo
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
@@ -328,7 +328,7 @@ jobs:
       github.repository_owner == 'zed-industries' &&
       needs.job_spec.outputs.run_tests == 'true'
     runs-on:
-      - buildjet-16vcpu-ubuntu-2204
+      - namespace-profile-16x32-ubuntu-2204
     steps:
       - name: Add Rust to the PATH
         run: echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
@@ -342,7 +342,7 @@ jobs:
         uses: swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2
         with:
           save-if: ${{ github.ref == 'refs/heads/main' }}
-          cache-provider: "buildjet"
+          # cache-provider: "buildjet"
 
       - name: Install Linux dependencies
         run: ./script/linux
@@ -380,7 +380,7 @@ jobs:
       github.repository_owner == 'zed-industries' &&
       needs.job_spec.outputs.run_tests == 'true'
     runs-on:
-      - buildjet-8vcpu-ubuntu-2204
+      - namespace-profile-16x32-ubuntu-2204
     steps:
       - name: Add Rust to the PATH
         run: echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
@@ -394,7 +394,7 @@ jobs:
         uses: swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2
         with:
           save-if: ${{ github.ref == 'refs/heads/main' }}
-          cache-provider: "buildjet"
+          # cache-provider: "buildjet"
 
       - name: Install Clang & Mold
         run: ./script/remote-server && ./script/install-mold 2.34.0
@@ -597,7 +597,7 @@ jobs:
     timeout-minutes: 60
     name: Linux x86_x64 release bundle
     runs-on:
-      - buildjet-16vcpu-ubuntu-2004 # ubuntu 20.04 for minimal glibc
+      - namespace-profile-16x32-ubuntu-2004 # ubuntu 20.04 for minimal glibc
     if: |
       startsWith(github.ref, 'refs/tags/v')
       || contains(github.event.pull_request.labels.*.name, 'run-bundling')
@@ -650,7 +650,7 @@ jobs:
     timeout-minutes: 60
     name: Linux arm64 release bundle
     runs-on:
-      - buildjet-32vcpu-ubuntu-2204-arm
+      - namespace-profile-32x64-ubuntu-2004-arm # ubuntu 20.04 for minimal glibc
     if: |
       startsWith(github.ref, 'refs/tags/v')
       || contains(github.event.pull_request.labels.*.name, 'run-bundling')
diff --git a/.github/workflows/deploy_cloudflare.yml b/.github/workflows/deploy_cloudflare.yml
index fe443d493e..df35d44ca9 100644
--- a/.github/workflows/deploy_cloudflare.yml
+++ b/.github/workflows/deploy_cloudflare.yml
@@ -9,7 +9,7 @@ jobs:
   deploy-docs:
     name: Deploy Docs
     if: github.repository_owner == 'zed-industries'
-    runs-on: buildjet-16vcpu-ubuntu-2204
+    runs-on: namespace-profile-16x32-ubuntu-2204
 
     steps:
       - name: Checkout repo
diff --git a/.github/workflows/deploy_collab.yml b/.github/workflows/deploy_collab.yml
index f7348a1069..8f56cac5d9 100644
--- a/.github/workflows/deploy_collab.yml
+++ b/.github/workflows/deploy_collab.yml
@@ -61,7 +61,7 @@ jobs:
       - style
       - tests
     runs-on:
-      - buildjet-16vcpu-ubuntu-2204
+      - namespace-profile-16x32-ubuntu-2204
     steps:
       - name: Install doctl
         uses: digitalocean/action-doctl@v2
@@ -94,7 +94,7 @@ jobs:
     needs:
       - publish
     runs-on:
-      - buildjet-16vcpu-ubuntu-2204
+      - namespace-profile-16x32-ubuntu-2204
 
     steps:
       - name: Checkout repo
diff --git a/.github/workflows/eval.yml b/.github/workflows/eval.yml
index 2ad302a602..b5da9e7b7c 100644
--- a/.github/workflows/eval.yml
+++ b/.github/workflows/eval.yml
@@ -32,7 +32,7 @@ jobs:
       github.repository_owner == 'zed-industries' &&
       (github.event_name != 'pull_request' || contains(github.event.pull_request.labels.*.name, 'run-eval'))
     runs-on:
-      - buildjet-16vcpu-ubuntu-2204
+      - namespace-profile-16x32-ubuntu-2204
     steps:
       - name: Add Rust to the PATH
         run: echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
@@ -46,7 +46,7 @@ jobs:
         uses: swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2
         with:
           save-if: ${{ github.ref == 'refs/heads/main' }}
-          cache-provider: "buildjet"
+          # cache-provider: "buildjet"
 
       - name: Install Linux dependencies
         run: ./script/linux
diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index 6c3a97c163..e682ce5890 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -20,7 +20,7 @@ jobs:
       matrix:
         system:
           - os: x86 Linux
-            runner: buildjet-16vcpu-ubuntu-2204
+            runner: namespace-profile-16x32-ubuntu-2204
             install_nix: true
           - os: arm Mac
             runner: [macOS, ARM64, test]
diff --git a/.github/workflows/randomized_tests.yml b/.github/workflows/randomized_tests.yml
index db4d44318e..de96c3df78 100644
--- a/.github/workflows/randomized_tests.yml
+++ b/.github/workflows/randomized_tests.yml
@@ -20,7 +20,7 @@ jobs:
     name: Run randomized tests
     if: github.repository_owner == 'zed-industries'
     runs-on:
-      - buildjet-16vcpu-ubuntu-2204
+      - namespace-profile-16x32-ubuntu-2204
     steps:
       - name: Install Node
         uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
diff --git a/.github/workflows/release_nightly.yml b/.github/workflows/release_nightly.yml
index c847149984..b3500a085b 100644
--- a/.github/workflows/release_nightly.yml
+++ b/.github/workflows/release_nightly.yml
@@ -128,7 +128,7 @@ jobs:
     name: Create a Linux *.tar.gz bundle for x86
     if: github.repository_owner == 'zed-industries'
     runs-on:
-      - buildjet-16vcpu-ubuntu-2004
+      - namespace-profile-16x32-ubuntu-2004 # ubuntu 20.04 for minimal glibc
     needs: tests
     steps:
       - name: Checkout repo
@@ -168,7 +168,7 @@ jobs:
     name: Create a Linux *.tar.gz bundle for ARM
     if: github.repository_owner == 'zed-industries'
     runs-on:
-      - buildjet-32vcpu-ubuntu-2204-arm
+      - namespace-profile-32x64-ubuntu-2004-arm # ubuntu 20.04 for minimal glibc
     needs: tests
     steps:
       - name: Checkout repo
diff --git a/.github/workflows/unit_evals.yml b/.github/workflows/unit_evals.yml
index cb4e39d151..2e03fb028f 100644
--- a/.github/workflows/unit_evals.yml
+++ b/.github/workflows/unit_evals.yml
@@ -23,7 +23,7 @@ jobs:
     timeout-minutes: 60
     name: Run unit evals
     runs-on:
-      - buildjet-16vcpu-ubuntu-2204
+      - namespace-profile-16x32-ubuntu-2204
     steps:
       - name: Add Rust to the PATH
         run: echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
@@ -37,7 +37,7 @@ jobs:
         uses: swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2
         with:
           save-if: ${{ github.ref == 'refs/heads/main' }}
-          cache-provider: "buildjet"
+          # cache-provider: "buildjet"
 
       - name: Install Linux dependencies
         run: ./script/linux
diff --git a/Cargo.lock b/Cargo.lock
index e034212748..3831d6c4d6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -20418,7 +20418,7 @@ dependencies = [
 
 [[package]]
 name = "zed"
-version = "0.199.0"
+version = "0.199.1"
 dependencies = [
  "activity_indicator",
  "agent",
diff --git a/crates/collab/src/db/queries/projects.rs b/crates/collab/src/db/queries/projects.rs
index 31635575a8..82f74d910b 100644
--- a/crates/collab/src/db/queries/projects.rs
+++ b/crates/collab/src/db/queries/projects.rs
@@ -699,7 +699,10 @@ impl Database {
                     language_server::Column::ProjectId,
                     language_server::Column::Id,
                 ])
-                .update_column(language_server::Column::Name)
+                .update_columns([
+                    language_server::Column::Name,
+                    language_server::Column::Capabilities,
+                ])
                 .to_owned(),
             )
             .exec(&*tx)
diff --git a/crates/language_models/src/provider/open_ai.rs b/crates/language_models/src/provider/open_ai.rs
index 5185e979b7..ee74562687 100644
--- a/crates/language_models/src/provider/open_ai.rs
+++ b/crates/language_models/src/provider/open_ai.rs
@@ -674,6 +674,10 @@ pub fn count_open_ai_tokens(
             | Model::O3
             | Model::O3Mini
             | Model::O4Mini => tiktoken_rs::num_tokens_from_messages(model.id(), &messages),
+            // GPT-5 models don't have tiktoken support yet; fall back on gpt-4o tokenizer
+            Model::Five | Model::FiveMini | Model::FiveNano => {
+                tiktoken_rs::num_tokens_from_messages("gpt-4o", &messages)
+            }
         }
         .map(|tokens| tokens as u64)
     })
diff --git a/crates/open_ai/src/open_ai.rs b/crates/open_ai/src/open_ai.rs
index 12a5cf52d2..4697d71ed3 100644
--- a/crates/open_ai/src/open_ai.rs
+++ b/crates/open_ai/src/open_ai.rs
@@ -74,6 +74,12 @@ pub enum Model {
     O3,
     #[serde(rename = "o4-mini")]
     O4Mini,
+    #[serde(rename = "gpt-5")]
+    Five,
+    #[serde(rename = "gpt-5-mini")]
+    FiveMini,
+    #[serde(rename = "gpt-5-nano")]
+    FiveNano,
 
     #[serde(rename = "custom")]
     Custom {
@@ -105,6 +111,9 @@ impl Model {
             "o3-mini" => Ok(Self::O3Mini),
             "o3" => Ok(Self::O3),
             "o4-mini" => Ok(Self::O4Mini),
+            "gpt-5" => Ok(Self::Five),
+            "gpt-5-mini" => Ok(Self::FiveMini),
+            "gpt-5-nano" => Ok(Self::FiveNano),
             invalid_id => anyhow::bail!("invalid model id '{invalid_id}'"),
         }
     }
@@ -123,6 +132,9 @@ impl Model {
             Self::O3Mini => "o3-mini",
             Self::O3 => "o3",
             Self::O4Mini => "o4-mini",
+            Self::Five => "gpt-5",
+            Self::FiveMini => "gpt-5-mini",
+            Self::FiveNano => "gpt-5-nano",
             Self::Custom { name, .. } => name,
         }
     }
@@ -141,6 +153,9 @@ impl Model {
             Self::O3Mini => "o3-mini",
             Self::O3 => "o3",
             Self::O4Mini => "o4-mini",
+            Self::Five => "gpt-5",
+            Self::FiveMini => "gpt-5-mini",
+            Self::FiveNano => "gpt-5-nano",
             Self::Custom {
                 name, display_name, ..
             } => display_name.as_ref().unwrap_or(name),
@@ -161,6 +176,9 @@ impl Model {
             Self::O3Mini => 200_000,
             Self::O3 => 200_000,
             Self::O4Mini => 200_000,
+            Self::Five => 272_000,
+            Self::FiveMini => 272_000,
+            Self::FiveNano => 272_000,
             Self::Custom { max_tokens, .. } => *max_tokens,
         }
     }
@@ -182,6 +200,9 @@ impl Model {
             Self::O3Mini => Some(100_000),
             Self::O3 => Some(100_000),
             Self::O4Mini => Some(100_000),
+            Self::Five => Some(128_000),
+            Self::FiveMini => Some(128_000),
+            Self::FiveNano => Some(128_000),
         }
     }
 
@@ -197,7 +218,10 @@ impl Model {
             | Self::FourOmniMini
             | Self::FourPointOne
             | Self::FourPointOneMini
-            | Self::FourPointOneNano => true,
+            | Self::FourPointOneNano
+            | Self::Five
+            | Self::FiveMini
+            | Self::FiveNano => true,
             Self::O1 | Self::O3 | Self::O3Mini | Self::O4Mini | Model::Custom { .. } => false,
         }
     }
diff --git a/crates/zed/Cargo.toml b/crates/zed/Cargo.toml
index 5bd6d981fa..e11af59f2a 100644
--- a/crates/zed/Cargo.toml
+++ b/crates/zed/Cargo.toml
@@ -2,7 +2,7 @@
 description = "The fast, collaborative code editor."
 edition.workspace = true
 name = "zed"
-version = "0.199.0"
+version = "0.199.1"
 publish.workspace = true
 license = "GPL-3.0-or-later"
 authors = ["Zed Team <hi@zed.dev>"]
diff --git a/crates/zed/RELEASE_CHANNEL b/crates/zed/RELEASE_CHANNEL
index 38f8e886e1..4de2f126df 100644
--- a/crates/zed/RELEASE_CHANNEL
+++ b/crates/zed/RELEASE_CHANNEL
@@ -1 +1 @@
-dev
+preview
\ No newline at end of file