NewYour coding agent can read the release notes before it upgrades.Set up the MCP server →
crates.io · #4262 most downloaded on crates.io
TBD
Last release 2 days ago
06 Oct 2026
Ships on a steady schedule
a new release about every 9 days
Nearly every release is documented
notes for 58 of the last 60 stable releases
4 versions withdrawn
withdrawn after publishing
4 years old
1493 releases · first in 2022
One column per quarter.
(es/parser) Handle JSX attributes with keyword prefixes correctly
(es/compat) Apply Array.prototype.slice to arguments in loose spread
(es/compat) Apply Array.prototype.slice to arguments in loose spread (#11122) (66428a2)
(es/compat) Handle sparse arrays correctly in generator transforms (#11131) (9cd4334)
(es/transforms) Check errors::HANDLER.is_set() before failing (#11130) (1c9ab27)
(bindings) Introduce AST Viewer to improve debugging experience
(es/minifier) Preserve __proto__ shorthand property behavior
### Features - (hstr) Introduce Wtf8Atom
(es/minifier) Optimize (a | 0) ^ b
(es/compat) Preserve comment when transform template with no expr
Nothing published for this version
(swc_common) Fix compatibility with serde 1.0.220+
Nothing published for this version
(es/minifier) Check in param before add ident
(es/compat) Preserve typeof symbol in loose mode
(es/minifier) Remove undefined initializer iff the name is an ident
Nothing published for this version
(es/ast) Fix unicode lone surrogates handling
(es/minifier) Avoid const_to_let if reassigned
(es/minifier) Fix debug feature
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Your coding agent can read these notes before it upgrades. Set up the MCP server →