To install Bun v1.0.1:

curl https://bun.sh/install | bash
# or you can use npm
# npm install -g bun

To upgrade to Bun v1.0.1:

bun upgrade

Read Bun v1.0.1's release notes on Bun's blog

What's Changed

• docs: Fix typo in development.md by @TiranexDev in https://github.com/oven-sh/bun/pull/4578
• Fix Bun.CryptoHasher missing argument in docs by @samualtnorman in https://github.com/oven-sh/bun/pull/4585
• Make the link to application clickable in the terminal by @brablc in https://github.com/oven-sh/bun/pull/4544
• Move "Importing CJS from CJS" back out of low-level details section by @dfabulich in https://github.com/oven-sh/bun/pull/4600
• docs: fix --backend options list on cache.md by @vitordino in https://github.com/oven-sh/bun/pull/4599
• Fix code typo in transpiler.md by @fdb in https://github.com/oven-sh/bun/pull/4604
• docs(templates.md): spelling update by @rajatdua in https://github.com/oven-sh/bun/pull/4614
• Update Svelte Kit Docs by @e253 in https://github.com/oven-sh/bun/pull/4541
• Update mongoose.md by @tk120404 in https://github.com/oven-sh/bun/pull/4534
• Delete docs/ecosystem/buchta.md by @xxxhussein in https://github.com/oven-sh/bun/pull/4536
• fix(docs): fix "Connect to a WebSocket server" repeated documentation by @BeeMargarida in https://github.com/oven-sh/bun/pull/4615
• Fix listen() using unix socket if argument is a valid port by @Electroid in https://github.com/oven-sh/bun/pull/4620
• fix typo by @akumarujon in https://github.com/oven-sh/bun/pull/4639
• fix: remove .only from bun-server.test.ts test case by @chrishutchinson in https://github.com/oven-sh/bun/pull/4709
• fix(docs): fix wasi-js link by @wobsoriano in https://github.com/oven-sh/bun/pull/4741
• fix(docs); typo on Nuxt guide page by @thunfisch987 in https://github.com/oven-sh/bun/pull/4745
• Fix mongoose ecosystem guide by @Fecony in https://github.com/oven-sh/bun/pull/4740
• docs: fix spelling by @therealrinku in https://github.com/oven-sh/bun/pull/4763
• fix(bindings): add missing binding by @WingLim in https://github.com/oven-sh/bun/pull/4682
• docs: Update Bun.write(path, Response) example to be clear that it writes the body by @tom-sherman in https://github.com/oven-sh/bun/pull/4802
• Docs: Add compatibility page link to index.md by @Slikon in https://github.com/oven-sh/bun/pull/4809
• Update todo-tests.md by @toneyzhen in https://github.com/oven-sh/bun/pull/4771
• docs: remove duplicate sentence from debugger by @eknowles in https://github.com/oven-sh/bun/pull/4807
• Update modules.md - Explain case-insensitivity by @jeroenvanrensen in https://github.com/oven-sh/bun/pull/4782
• Replace unnecessary backticks (`) with double quotes (") in http doc code snippets by @diogo405 in https://github.com/oven-sh/bun/pull/4792
• Fixes #4588 by @Jarred-Sumner in https://github.com/oven-sh/bun/pull/4804
• Support named imports for json & toml files at runtime by @Jarred-Sumner in https://github.com/oven-sh/bun/pull/4783
• added .idea to init's .gitignore by @kpracuk in https://github.com/oven-sh/bun/pull/4951
• docs: changes wrong command name in the testing chapter by @AvantaR in https://github.com/oven-sh/bun/pull/4965
• Make detect-libc package match the upstream api by @fehnomenal in https://github.com/oven-sh/bun/pull/4910
• Fix punctuation by @matthewyu01 in https://github.com/oven-sh/bun/pull/4870
• Update http.js - Fix Methods Fallback naming by @Yonben in https://github.com/oven-sh/bun/pull/4948
• Fixed inconsistent log messages in the Quickstart guide by @pesterev in https://github.com/oven-sh/bun/pull/4942
• Remove unnecessary backticks in quickstart doc page by @diogo405 in https://github.com/oven-sh/bun/pull/4927
• Fix error message typo in js_ast.zig by @benjervis in https://github.com/oven-sh/bun/pull/4937
• fix(bun-lambda): Don't drop arguments in console.log(...) by @booniepepper in https://github.com/oven-sh/bun/pull/4992
• fix loading env from .env.production and friends by @dylan-conway in https://github.com/oven-sh/bun/pull/4630
• fix(BunFile) .slice offset on macOS by @cirospaciari in https://github.com/oven-sh/bun/pull/4991
• Fix Buffer.from to handle double-byte hex encoding strings by @Hanaasagi in https://github.com/oven-sh/bun/pull/4933
• fix(path): Fix edge case in path.relative by @Hanaasagi in https://github.com/oven-sh/bun/pull/4811
• Update gzip.md by @ebidel in https://github.com/oven-sh/bun/pull/5041
• add NODE_TLS_REJECT_UNAUTHORIZED for fetch/install/upgrade/create by @cirospaciari in https://github.com/oven-sh/bun/pull/4829
• fix(JSC): copy string in toJSStringValueGC by @Hanaasagi in https://github.com/oven-sh/bun/pull/5067
• Fix some bugs blocking Turborepo from using bun run by @Jarred-Sumner in https://github.com/oven-sh/bun/pull/5071
• fix(node/path): Prevent memory corruption in parse by @davidmhewitt in https://github.com/oven-sh/bun/pull/5083
• fix up with prettier by @alexlamsl in https://github.com/oven-sh/bun/pull/5092

New Contributors

• @samualtnorman made their first contribution in https://github.com/oven-sh/bun/pull/4585
• @brablc made their first contribution in https://github.com/oven-sh/bun/pull/4544
• @dfabulich made their first contribution in https://github.com/oven-sh/bun/pull/4600
• @vitordino made their first contribution in https://github.com/oven-sh/bun/pull/4599
• @fdb made their first contribution in https://github.com/oven-sh/bun/pull/4604
• @rajatdua made their first contribution in https://github.com/oven-sh/bun/pull/4614
• @e253 made their first contribution in https://github.com/oven-sh/bun/pull/4541
• @tk120404 made their first contribution in https://github.com/oven-sh/bun/pull/4534
• @BeeMargarida made their first contribution in https://github.com/oven-sh/bun/pull/4615
• @akumarujon made their first contribution in https://github.com/oven-sh/bun/pull/4639
• @chrishutchinson made their first contribution in https://github.com/oven-sh/bun/pull/4709
• @thunfisch987 made their first contribution in https://github.com/oven-sh/bun/pull/4745
• @Fecony made their first contribution in https://github.com/oven-sh/bun/pull/4740
• @therealrinku made their first contribution in https://github.com/oven-sh/bun/pull/4763
• @WingLim made their first contribution in https://github.com/oven-sh/bun/pull/4682
• @tom-sherman made their first contribution in https://github.com/oven-sh/bun/pull/4802
• @Slikon made their first contribution in https://github.com/oven-sh/bun/pull/4809
• @toneyzhen made their first contribution in https://github.com/oven-sh/bun/pull/4771
• @eknowles made their first contribution in https://github.com/oven-sh/bun/pull/4807
• @jeroenvanrensen made their first contribution in https://github.com/oven-sh/bun/pull/4782
• @diogo405 made their first contribution in https://github.com/oven-sh/bun/pull/4792
• @kpracuk made their first contribution in https://github.com/oven-sh/bun/pull/4951
• @AvantaR made their first contribution in https://github.com/oven-sh/bun/pull/4965
• @fehnomenal made their first contribution in https://github.com/oven-sh/bun/pull/4910
• @matthewyu01 made their first contribution in https://github.com/oven-sh/bun/pull/4870
• @Yonben made their first contribution in https://github.com/oven-sh/bun/pull/4948
• @pesterev made their first contribution in https://github.com/oven-sh/bun/pull/4942
• @benjervis made their first contribution in https://github.com/oven-sh/bun/pull/4937
• @booniepepper made their first contribution in https://github.com/oven-sh/bun/pull/4992
• @ebidel made their first contribution in https://github.com/oven-sh/bun/pull/5041
• @davidmhewitt made their first contribution in https://github.com/oven-sh/bun/pull/5083

Full Changelog: https://github.com/oven-sh/bun/compare/bun-v1.0.0...bun-v1.0.1