Apple Clang
by Apple
Apple's fork of LLVM/Clang shipped with Xcode. Uses its own versioning scheme independent of upstream LLVM. The Apple Clang version (e.g. 15.0.0) does not correspond to the upstream LLVM version number.
https://developer.apple.com/xcode/
releases (19)
| version | date | xcode_version | apple_build | llvm_base |
|---|---|---|---|---|
| 21.0.0 | 2026-03 | 26.4 | clang-2100.0.123.102 | 21 |
| 17.0.0 | 2026-02 | 26.3 | clang-1700.6.4.2 | 19 |
| 17.0.0 | 2025-12 | 26.2 | clang-1700.6.3.2 | 19 |
| 17.0.0 | 2025-11 | 26.1 | clang-1700.4.4.1 | 19 |
| 17.0.0 | 2025-09 | 26.0.1 | clang-1700.3.19.1 | 19 |
| 17.0.0 | 2025-09 | 26.0 | clang-1700.3.19.1 | 19 |
| 16.0.0 | 2024-09 | 16.0 | clang-1600.0.26.3 | 18 |
| 15.0.0 | 2024-01 | 15.3 | clang-1500.3.9.4 | 17 |
| 15.0.0 | 2023-09 | 15.0 | clang-1500.0.40.1 | 16 |
| 14.0.3 | 2023-03 | 14.3 | clang-1403.0.22.14.1 | 15 |
| 14.0.0 | 2022-09 | 14.0 | clang-1400.0.29.102 | 14 |
| 13.1.6 | 2022-03 | 13.3 | clang-1316.0.21.2 | 13 |
| 13.0.0 | 2021-09 | 13.0 | clang-1300.0.29.3 | 12 |
| 12.0.5 | 2021-04 | 12.5 | clang-1205.0.22.9 | 11 |
| 12.0.0 | 2020-09 | 12.0 | clang-1200.0.32.2 | 10 |
| 11.0.3 | 2020-03 | 11.4 | clang-1103.0.32.29 | 9 |
| 11.0.0 | 2019-09 | 11.0 | clang-1100.0.33.8 | 8 |
| 10.0.1 | 2019-03 | 10.2 | clang-1001.0.46.3 | 7 |
| 10.0.0 | 2018-09 | 10.0 | clang-1000.11.45.2 | 6 |