Rust 1.93 Brings Improvement For Inline Assembly Handling
([Programming] 3 Hours Ago
Rust 1.93)
- Reference: 0001607796
- News link: https://www.phoronix.com/news/Rust-1.93-Released
- Source link:
Rust 1.93 is out today as the first feature release for this programming lanugage of 2026.
Rust 1.93 updates the musl libc to 1.2.5 for the various *-linux-musl targets compares to musl 1.2.3 previously being used. The musl update was motivated for improvements to its DNS resolver and various bug fixes. The updated DNS resolver should make Rust musl targets with static linking have more reliable networking.
A notable language change with Rust 1.93 is used for cfg attributes on inline Assembly (asm!) lines. The Rust cfg attribute used for conditional compilation would previously only work for a full asm! block. With Rust 1.93+, cfg attributes can be targeted at just portions of the asm! block so individual statements can be conditionally compiled depending upon the target features.
A nice improvement for those using a lot of hand-tuned inline Assembly within Rust programs to avoid having to repeat a lot of duplicated Assembly with now being able to cfg individual statements within a block.
More details on the Rust 1.93 changes via [1]Rust-Lang.org .
[1] https://blog.rust-lang.org/2026/01/22/Rust-1.93.0/
Rust 1.93 updates the musl libc to 1.2.5 for the various *-linux-musl targets compares to musl 1.2.3 previously being used. The musl update was motivated for improvements to its DNS resolver and various bug fixes. The updated DNS resolver should make Rust musl targets with static linking have more reliable networking.
A notable language change with Rust 1.93 is used for cfg attributes on inline Assembly (asm!) lines. The Rust cfg attribute used for conditional compilation would previously only work for a full asm! block. With Rust 1.93+, cfg attributes can be targeted at just portions of the asm! block so individual statements can be conditionally compiled depending upon the target features.
A nice improvement for those using a lot of hand-tuned inline Assembly within Rust programs to avoid having to repeat a lot of duplicated Assembly with now being able to cfg individual statements within a block.
More details on the Rust 1.93 changes via [1]Rust-Lang.org .
[1] https://blog.rust-lang.org/2026/01/22/Rust-1.93.0/