To install Bun v1.0.5:

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

To upgrade to Bun v1.0.5:

bun upgrade

Read Bun v1.0.5's release notes on Bun's blog

What's Changed

• Add license information to package.json by @mathiasrw in Add license information to package.json #6255
• Docs: Update context.md by @wbjohn in Docs: Update context.md #6256
• docs: update typescript.md by @jsparkdev in docs: update typescript.md #6222
• feat(encoding): support BOM detection with test passed by @WingLim in feat(encoding): support BOM detection with test passed #6074
• Fix bunx command for github package bunx does not work with github:user/repo syntax #5974 by @axlEscalada in Fix bunx command for github package #5974 #6042
• fix(blob): Add the current offset to the new blob slice by @Hanaasagi in fix(blob): Add the current offset to the new blob slice #6259
• compat: Buffer: allow optional positional arguments to be undefined by @kitsuned in compat: Buffer: allow optional positional arguments to be undefined #4911
• Support bun run --if-present by @Electroid in Support bun run --if-present #6248
• Upgrade webkit by @dylan-conway in Upgrade webkit #6277
• Closes Error with @terascope/fetch-github-release #6309 by @colinhacks in Closes #6309 #6310
• Create AbortSignal without JS by @Jarred-Sumner in Create AbortSignal without JS #6278
• Update preload documentation to make applicability to plugins more obvious by @Pandapip1 in Update preload documentation to make applicability to plugins more obvious #6298
• Fix query property of url object by @Jarred-Sumner in Fix query property of url object #6274
• fix semver and repository host bugs by @dylan-conway in fix semver and repository host bugs #6312
• Use singular nouns when appropriate on install messages by @jakeboone02 in Use singular nouns when appropriate on install messages #2543
• Update Node.js compat docs by @colinhacks in Update Node.js compat docs #6282
• test(bun install): cover http(s) non-github case by @booniepepper in test(bun install): cover http(s) non-github case #6190
• WebCryptoAPI: remove JWK "EdDSA" alg checks by @panva in WebCryptoAPI: remove JWK "EdDSA" alg checks #6294
• fix(serve): fix close_connection behaviour in endWithoutBody by @Hanaasagi in fix(serve): fix close_connection behaviour in endWithoutBody #6315
• docs: file.stream() is not a promise by @pnodet in docs: file.stream() is not a promise #6337
• [types] allow onLoad plugin callbacks to return undefined by @silversquirl in [types] allow onLoad plugin callbacks to return undefined #6346
• Fix memory leak in fetch() by @Jarred-Sumner in Fix memory leak in fetch() #6350
• feat(KeyObject) by @cirospaciari in feat(KeyObject) #5940
• Fix array variables preview in debugger by @2hu12 in Fix array variables preview in debugger #6379
• fix: support uint8 exit code range by @liz3 in fix: support uint8 exit code range #6303
• docs: fixing a couple typos by @Cadienvan in docs: fixing a couple typos #6331
• Update README.md by @Longju000 in Update README.md #6291
• added commands by @babarkhuroo in added commands #6314
• [Docs] Add Fedora build instructions to development.md by @otterDeveloper in [Docs] Add Fedora build instructions to development.md #6359
• fix(AbortSignal/fetch) fix AbortSignal.timeout, fetch lock behavior and fetch errors by @cirospaciari in fix(AbortSignal/fetch) fix AbortSignal.timeout, fetch lock behavior and fetch errors #6390
• Documentation for the IPC of Bun.spawn by @RaresAil in Documentation for the IPC of Bun.spawn #6400
• Update vite.md : removal of incorrect information about --bun flag by @yukulele in Update vite.md : removal of incorrect information about --bun flag #6399
• Add missing ws declarations by @vthemelis in Add missing ws declarations #6307
• docs: rearranged cli/runtime related sections by @cyfung1031 in docs: rearranged cli/runtime related sections #6275
• Add File to binary data TOC by @AaronDewes in Add File to binary data TOC #6025
• make peer dependencies install by default by @dylan-conway in make peer dependencies install by default #6396
• fix: form data content type by @yadav-saurabh in fix: form data content type #6380
• feat(test): implement toEqualIgnoringWhitespace by @EladBezalel in feat(test): implement toEqualIgnoringWhitespace #6293
• Fix lifecycle scripts not running on reinstallation by @Arden144 in Fix lifecycle scripts not running on reinstallation #6376
• feat(install): automatically migrate package-lock.json to bun.lockb by @paperdave in feat(install): automatically migrate package-lock.json to bun.lockb #6352

New Contributors

• @mathiasrw made their first contribution in Add license information to package.json #6255
• @wbjohn made their first contribution in Docs: Update context.md #6256
• @jsparkdev made their first contribution in docs: update typescript.md #6222
• @kitsuned made their first contribution in compat: Buffer: allow optional positional arguments to be undefined #4911
• @Pandapip1 made their first contribution in Update preload documentation to make applicability to plugins more obvious #6298
• @panva made their first contribution in WebCryptoAPI: remove JWK "EdDSA" alg checks #6294
• @2hu12 made their first contribution in Fix array variables preview in debugger #6379
• @Cadienvan made their first contribution in docs: fixing a couple typos #6331
• @Longju000 made their first contribution in Update README.md #6291
• @babarkhuroo made their first contribution in added commands #6314
• @otterDeveloper made their first contribution in [Docs] Add Fedora build instructions to development.md #6359
• @RaresAil made their first contribution in Documentation for the IPC of Bun.spawn #6400
• @yukulele made their first contribution in Update vite.md : removal of incorrect information about --bun flag #6399
• @vthemelis made their first contribution in Add missing ws declarations #6307
• @EladBezalel made their first contribution in feat(test): implement toEqualIgnoringWhitespace #6293
• @Arden144 made their first contribution in Fix lifecycle scripts not running on reinstallation #6376

Full Changelog: bun-v1.0.4...bun-v1.0.5