# Deno v1.24.0 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v1.24.0
- **Released:** Jul 21, 2022
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/deno/updates/v1.24.0/

## Executive Summary (TL;DR)
Deno v1.24.0. Source highlight: BREAKING(unstable): Improve Deno.spawn() stdio API (#14919)

## Breaking Changes & Deprecations
- - BREAKING(unstable): Improve Deno.spawn() stdio API (#14919)

## New Features
- feat(cli): support configuring the test tool in the config file (#15079)
- feat(cli/lsp): Sort repl completions (#15171)
- feat(cli/test): add `DENO_JOBS` env variable for `test` subcommand (#14929)
- feat(ext/ffi): Support 64 bit parameters in Fast API calls (#15140)
- feat(fmt): do not add a newline between a template and its tag (#15195)
- feat(test): add `--parallel` flag, soft deprecate `--jobs` (#15259)

## Improvements
- BREAKING(unstable): Improve Deno.spawn() stdio API (#14919)
- perf: use emit from swc instead of tsc (#15118)

## Bug Fixes
- feat(lsp): provide import map remapping diags and fixes (#15165)
- fix(cli): Improve error message in watch mode (#15184)
- fix(cli): expand tsc roots when using checkJs (#15164)
- fix(cli): synchronize async stdio/file reads and writes (#15092)
- fix(cli/dts): allow passing arguments to `WebAssembly` error constructors
- fix(core): unhandled rejection in top-level scope (#15204)