- Breaking change: removed Deno.UnsafePointer indirection in the unstable FFI API.
- Added FFI callbacks feature and optimized Rust‑side FFI type checks for better performance.
- Fixed a range of bugs across check, fetch, web, formatting, REPL, and core modules, plus added source‑lookup caching.
v1.23.1
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Added an unscoped flag for package aliasing, a members‑only flag for workspace tasks, Blob/Body.textStream() API, and an experimental QuickJS backend.
Added HMR support for React Router on desktop, new length/byteLength parameters for Buffer searches, raw ChaCha20 cipher support, and upgraded V8 to 150.2.0.