April 23rd, 2025

Breaking Changes:

• ⚠️ (client, smithy-rs#3776) AuthSchemeId no longer implements the Copy trait. This type has primarily been used by the Smithy code generator, so this change is not expected to affect users of SDKs.

New this release:

• (all, smithy-rs#4050, @FalkWoldmann) Replace the once_cell crate with the std counterpart in Smithy runtime crates.
• (client) remove redundant span attributes and improve log output format

Contributors
Thank you for your contributions! ❤

• @FalkWoldmann (smithy-rs#4050)