w0wl0lxd · w0wl0lxd · Aug 15, 2026 · Aug 14, 2026 · Aug 14, 2026 · Aug 14, 2026
diff --git a/.cargo/config.toml b/.cargo/config.toml
@@ -2,3 +2,14 @@
 # which rustc's `-nodefaultlibs` musl link would otherwise drop.
 [target.aarch64-unknown-linux-musl]
 rustflags = ["-C", "link-arg=-lgcc"]
+
+# Cranelift for dev builds only; release keeps LLVM. Windows/macOS CI jobs and
+# the Coverage job override this back to llvm via CARGO_PROFILE_DEV_CODEGEN_BACKEND:
+# Windows/macOS because cranelift's unwinding support is experimental there and
+# n00n's own code catches panics via catch_unwind, Coverage because
+# -C instrument-coverage is LLVM-specific and cranelift rejects it outright.
+[unstable]
+codegen-backend = true
+
+[profile.dev]
+codegen-backend = "cranelift"
diff --git a/.github/workflows/benchmarks.yml b/.github/workflows/benchmarks.yml
@@ -30,8 +30,9 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
         with:
           persist-credentials: false
-      - uses: dtolnay/rust-toolchain@4cda84d5c5c54efe2404f9d843567869ab1699d4  # stable
+      - uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772  # master
         with:
+          toolchain: nightly-2026-08-14
           components: rustfmt
       - uses: Swatinem/rust-cache@23869a5bd66c73db3c0ac40331f3206eb23791dc  # v2.9.1
         with:

diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
@@ -24,7 +24,9 @@ jobs:
       - uses: 'actions/checkout@11d5960a326750d5838078e36cf38b85af677262'  # v4
         with:
           persist-credentials: false
-      - uses: 'dtolnay/rust-toolchain@4cda84d5c5c54efe2404f9d843567869ab1699d4'  # stable
+      - uses: 'dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772'  # master
+        with:
+          toolchain: nightly-2026-08-14
       - uses: 'Swatinem/rust-cache@e18b497796c12c097a38f9edb9d0641fb99eee32'  # v2
         with:
           shared-key: 'linux-stable'

diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
@@ -150,6 +150,8 @@ jobs:
     needs: changes
     if: needs.changes.outputs.code == 'true'
     runs-on: windows-latest
+    env:
+      CARGO_PROFILE_DEV_CODEGEN_BACKEND: llvm
     steps:
       - uses: 'actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1' # v7
         with:
@@ -167,6 +169,8 @@ jobs:
     needs: changes
     if: needs.changes.outputs.code == 'true'
     runs-on: macos-latest
+    env:
+      CARGO_PROFILE_DEV_CODEGEN_BACKEND: llvm
     steps:
       - uses: 'actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1' # v7
         with:
@@ -184,6 +188,8 @@ jobs:
     needs: changes
     if: needs.changes.outputs.code == 'true'
     runs-on: windows-latest
+    env:
+      CARGO_PROFILE_DEV_CODEGEN_BACKEND: llvm
     steps:
       - uses: 'actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1' # v7
         with:
@@ -201,6 +207,8 @@ jobs:
     needs: changes
     if: needs.changes.outputs.code == 'true'
     runs-on: macos-latest
+    env:
+      CARGO_PROFILE_DEV_CODEGEN_BACKEND: llvm
     steps:
       - uses: 'actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1' # v7
         with:
@@ -218,6 +226,8 @@ jobs:
     needs: changes
     if: needs.changes.outputs.code == 'true'
     runs-on: windows-latest
+    env:
+      CARGO_PROFILE_DEV_CODEGEN_BACKEND: llvm
     steps:
       - uses: 'actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1' # v7
         with:
@@ -235,12 +245,15 @@ jobs:
     needs: changes
     if: needs.changes.outputs.code == 'true'
     runs-on: ubuntu-latest
+    env:
+      CARGO_PROFILE_DEV_CODEGEN_BACKEND: llvm
     steps:
       - uses: 'actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1' # v7
         with:
           persist-credentials: false
-      - uses: 'dtolnay/rust-toolchain@4cda84d5c5c54efe2404f9d843567869ab1699d4' # stable
+      - uses: 'dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772' # master
         with:
+          toolchain: nightly-2026-08-14
           components: llvm-tools-preview
       - uses: 'Swatinem/rust-cache@e18b497796c12c097a38f9edb9d0641fb99eee32' # v2
         with:
@@ -255,21 +268,6 @@ jobs:
           files: lcov.info
           fail_ci_if_error: false
           token: ${{ secrets.CODECOV_TOKEN }}
-  msrv:
-    name: MSRV (1.97)
-    needs: changes
-    if: needs.changes.outputs.code == 'true'
-    runs-on: ubuntu-latest
-    steps:
-      - uses: 'actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1' # v7
-        with:
-          persist-credentials: false
-      - uses: 'dtolnay/rust-toolchain@35a842e360814583e976785eeda0bd0655cb8e83' # 1.97.0
-      - uses: 'Swatinem/rust-cache@e18b497796c12c097a38f9edb9d0641fb99eee32' # v2
-        with:
-          shared-key: 'linux-msrv'
-          save-if: ${{ github.ref == 'refs/heads/main' }}
-      - run: cargo build --workspace --all-targets
   rustdoc:
     name: Rustdoc
     needs: changes
@@ -301,7 +299,6 @@ jobs:
       - build-windows
       - test-windows
       - coverage
-      - msrv
       - rustdoc
     runs-on: ubuntu-latest
     steps:

diff --git a/Cargo.toml b/Cargo.toml
@@ -10,7 +10,6 @@ homepage = "https://github.com/w0wl0lxd/n00n"
 readme = "README.md"
 keywords = ["ai", "agent", "cli", "tui", "coding"]
 categories = ["command-line-utilities", "development-tools"]
-rust-version = "1.97"
 
 [[bin]]
 name = "n00n"
@@ -87,7 +86,6 @@ edition = "2024"
 authors = ["w0wl0lxd <w0wl0lxd@tuta.com>"]
 license = "AGPL-3.0-only"
 repository = "https://github.com/w0wl0lxd/n00n"
-rust-version = "1.97"
 
 [workspace.dependencies]
 n00n-agent = { path = "n00n-agent" }

diff --git a/changelog.d/nightly-toolchain-cranelift.changed.md b/changelog.d/nightly-toolchain-cranelift.changed.md
@@ -0,0 +1 @@
+n00n now builds on a floating Rust nightly toolchain instead of stable, with the Cranelift codegen backend enabled for dev builds (release builds still use LLVM). CI toolchain steps were switched to nightly, the MSRV job was removed since a floating-nightly policy has no minimum supported version, and the `rust-version` field was dropped from all workspace manifests accordingly.
diff --git a/n00n-acp/Cargo.toml b/n00n-acp/Cargo.toml
@@ -6,7 +6,6 @@ edition.workspace = true
 license.workspace = true
 authors.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 
 [dependencies]
 n00n-agent = { workspace = true }

diff --git a/n00n-agent/Cargo.toml b/n00n-agent/Cargo.toml
@@ -6,7 +6,6 @@ edition.workspace = true
 license.workspace = true
 authors.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 
 [dependencies]
 n00n-providers = { workspace = true }

diff --git a/n00n-codegraph/Cargo.toml b/n00n-codegraph/Cargo.toml
@@ -5,7 +5,6 @@ edition.workspace = true
 authors.workspace = true
 license.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 
 # Targets CodeGraph 1.5.0 CLI for command expansion (callers, callees, impact, affected, node, query, sync, files)
 # Falls back to CLI when native SQLite queries are not available

diff --git a/n00n-config-macro/Cargo.toml b/n00n-config-macro/Cargo.toml
@@ -6,7 +6,6 @@ edition.workspace = true
 license.workspace = true
 authors.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 
 [lib]
 proc-macro = true

diff --git a/n00n-config/Cargo.toml b/n00n-config/Cargo.toml
@@ -6,7 +6,6 @@ edition.workspace = true
 license.workspace = true
 authors.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 
 [dependencies]
 n00n-config-macro = { workspace = true }

diff --git a/n00n-daemon/Cargo.toml b/n00n-daemon/Cargo.toml
@@ -6,7 +6,6 @@ description = "On-device agent control plane: registry, UDS NDJSON protocol, wor
 license.workspace = true
 authors.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 
 [dependencies]
 n00n-storage = { workspace = true }

diff --git a/n00n-docgen/Cargo.toml b/n00n-docgen/Cargo.toml
@@ -6,7 +6,6 @@ edition.workspace = true
 authors.workspace = true
 license.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 
 [[bin]]
 name = "n00n-docgen"

diff --git a/n00n-highlight/Cargo.toml b/n00n-highlight/Cargo.toml
@@ -6,7 +6,6 @@ edition.workspace = true
 authors.workspace = true
 license.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 
 [dependencies]
 serde_json = { workspace = true }

diff --git a/n00n-interpreter/Cargo.toml b/n00n-interpreter/Cargo.toml
@@ -6,7 +6,6 @@ edition.workspace = true
 license.workspace = true
 authors.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 
 [dependencies]
 monty = { workspace = true }

diff --git a/n00n-lua-macro/Cargo.toml b/n00n-lua-macro/Cargo.toml
@@ -6,7 +6,6 @@ edition.workspace = true
 license.workspace = true
 authors.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 
 [lib]
 proc-macro = true

diff --git a/n00n-lua/Cargo.toml b/n00n-lua/Cargo.toml
@@ -6,7 +6,6 @@ edition.workspace = true
 authors.workspace = true
 license.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 
 [dependencies]
 arc-swap = { workspace = true }

diff --git a/n00n-markdown/Cargo.toml b/n00n-markdown/Cargo.toml
@@ -6,7 +6,6 @@ edition.workspace = true
 authors.workspace = true
 license.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 
 [dependencies]
 n00n-highlight = { workspace = true }

diff --git a/n00n-providers/Cargo.toml b/n00n-providers/Cargo.toml
@@ -6,7 +6,6 @@ edition.workspace = true
 license.workspace = true
 authors.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 build = "build.rs"
 
 [dependencies]

diff --git a/n00n-redact/Cargo.toml b/n00n-redact/Cargo.toml
@@ -6,7 +6,6 @@ edition.workspace = true
 authors.workspace = true
 license.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 
 [dependencies]
 serde_json = { workspace = true }

diff --git a/n00n-search/Cargo.toml b/n00n-search/Cargo.toml
@@ -5,7 +5,6 @@ edition.workspace = true
 authors.workspace = true
 license.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 
 [lints]
 workspace = true

diff --git a/n00n-semble/Cargo.toml b/n00n-semble/Cargo.toml
@@ -5,7 +5,6 @@ edition.workspace = true
 authors.workspace = true
 license.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 
 [lints]
 workspace = true

diff --git a/n00n-storage/Cargo.toml b/n00n-storage/Cargo.toml
@@ -6,7 +6,6 @@ edition.workspace = true
 license.workspace = true
 authors.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 
 [dependencies]
 getrandom = { workspace = true }

diff --git a/n00n-token-profile/Cargo.toml b/n00n-token-profile/Cargo.toml
@@ -5,7 +5,6 @@ edition.workspace = true
 authors.workspace = true
 license.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 description = "Offline cold-start token profiling and CI regression gates for n00n"
 publish = false
 

diff --git a/n00n-ui/Cargo.toml b/n00n-ui/Cargo.toml
@@ -6,7 +6,6 @@ edition.workspace = true
 license.workspace = true
 authors.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 
 [dependencies]
 n00n-agent = { workspace = true }

diff --git a/rust-toolchain.toml b/rust-toolchain.toml
@@ -1,5 +1,5 @@
 [toolchain]
-channel = "stable"
-components = ["clippy", "rustfmt", "rust-src", "rust-analyzer"]
+channel = "nightly-2026-08-14"
+components = ["clippy", "rustfmt", "rust-src", "rust-analyzer", "rustc-codegen-cranelift-preview"]
 profile = "minimal"
 targets = ["x86_64-pc-windows-msvc"]
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		n00n now builds on a floating Rust nightly toolchain instead of stable, with the Cranelift codegen backend enabled for dev builds (release builds still use LLVM). CI toolchain steps were switched to nightly, the MSRV job was removed since a floating-nightly policy has no minimum supported version, and the `rust-version` field was dropped from all workspace manifests accordingly.
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