## Toolchain Compatibility
-<!-- NOTE: to update the below table, you can use this shell script:
-
-```sh
-rustup toolchain install --profile minimal nightly
-MINOR_VERSION=$(rustc +nightly --version | cut -d . -f 2)
-LOWER_BOUND=61
-
-llvm_version() {
- toolchain="$1"
- printf "Rust $toolchain | Clang "
- rustc +"$toolchain" -Vv | grep LLVM | cut -d ':' -f 2 | tr -d ' '
-}
-
-for version in `seq $LOWER_BOUND $((MINOR_VERSION - 2))`; do
- toolchain=1.$version.0
- rustup toolchain install --no-self-update --profile minimal $toolchain >/dev/null 2>&1
- llvm_version $toolchain
-done
+<!-- NOTE: to update the below table, you can use this Python script:
+
+```python
+from collections import defaultdict
+import subprocess
+
+def minor_version(version):
+ return int(version.split('.')[1])
+
+INSTALL_TOOLCHAIN = ["rustup", "toolchain", "install", "--profile", "minimal"]
+subprocess.run(INSTALL_TOOLCHAIN + ["nightly"])
+
+LOWER_BOUND = 65
+NIGHTLY_VERSION = minor_version(subprocess.run(
+ ["rustc", "+nightly", "--version"],
+ capture_output=True,
+ text=True).stdout)
+
+def llvm_version(toolchain):
+ version_text = subprocess.run(
+ ["rustc", "+{}".format(toolchain), "-Vv"],
+ capture_output=True,
+ text=True).stdout
+ return int(version_text.split("LLVM")[1].split(':')[1].split('.')[0])
+
+version_map = defaultdict(lambda: [])
+for version in range(LOWER_BOUND, NIGHTLY_VERSION - 1):
+ toolchain = "1.{}.0".format(version)
+ subprocess.run(
+ INSTALL_TOOLCHAIN + ["--no-self-update", toolchain],
+ capture_output=True)
+ version_map[llvm_version(toolchain)].append(version)
+
+print("| Rust Version | Clang Version |")
+print("|--------------|---------------|")
+for clang, rust in sorted(version_map.items()):
+ if len(rust) > 1:
+ rust_range = "1.{} - 1.{}".format(rust[0], rust[-1])
+ else:
+ rust_range = "1.{} ".format(rust[0])
+ print("| {} | {} |".format(rust_range, clang))
```
-->
| Rust Version | Clang Version |
|--------------|---------------|
-| Rust 1.34 | Clang 8 |
-| Rust 1.35 | Clang 8 |
-| Rust 1.36 | Clang 8 |
-| Rust 1.37 | Clang 8 |
-| Rust 1.38 | Clang 9 |
-| Rust 1.39 | Clang 9 |
-| Rust 1.40 | Clang 9 |
-| Rust 1.41 | Clang 9 |
-| Rust 1.42 | Clang 9 |
-| Rust 1.43 | Clang 9 |
-| Rust 1.44 | Clang 9 |
-| Rust 1.45 | Clang 10 |
-| Rust 1.46 | Clang 10 |
-| Rust 1.47 | Clang 11 |
-| Rust 1.48 | Clang 11 |
-| Rust 1.49 | Clang 11 |
-| Rust 1.50 | Clang 11 |
-| Rust 1.51 | Clang 11 |
-| Rust 1.52 | Clang 12 |
-| Rust 1.53 | Clang 12 |
-| Rust 1.54 | Clang 12 |
-| Rust 1.55 | Clang 12 |
-| Rust 1.56 | Clang 13 |
-| Rust 1.57 | Clang 13 |
-| Rust 1.58 | Clang 13 |
-| Rust 1.59 | Clang 13 |
-| Rust 1.60 | Clang 14 |
+| 1.34 - 1.37 | 8 |
+| 1.38 - 1.44 | 9 |
+| 1.45 - 1.46 | 10 |
+| 1.47 - 1.51 | 11 |
+| 1.52 - 1.55 | 12 |
+| 1.56 - 1.59 | 13 |
+| 1.60 - 1.64 | 14 |
+| 1.65 | 15 |
Note that the compatibility policy for this feature might change in the future.