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verdict:

Bun 1.4.0

notable

note: not enough notes to judge

These release notes point somewhere else instead of describing what changed, so neither verdict would be honest: we found no breaking changes, which is not the same as there being none. The notes are below, with the link they point to.

0 breaking changes3 key points

These notes list no changes, only install instructions and a link to the Bun 1.4 blog post.

summary · from the release notes only · claude-haiku-5-5 · prompt v7

key points

release-notesgithub.com/oven-sh/bun · 118 lines
  1. To install Bun v1.4
  2. ```bash
  3. curl -fsSL https://bun.com/install | bash
  4. # or you can use npm
  5. # npm install -g bun
  6. ```
  7. Windows:
  8. ```bash
  9. powershell -c "irm bun.com/install.ps1|iex"
  10. ```
  11. To upgrade to Bun v1.4.0:
  12. ```bash
  13. bun upgrade
  14. ```
  15. Read the [blog post](https://bun.com/1.4):
  16. <a href="https://bun.com/1.4">
  17. <img width="1672" height="941" alt="image (1)" src="https://github.com/user-attachments/assets/e8b3c370-7725-47c0-99cd-76faa8c869a3" />
  18. </a>
  19. ### Thank you
  20. Bun is free, open source, and MIT-licensed. We receive a lot of contributions from the community, and we'd like to thank everyone who fixed a bug or contributed since Bun v1.3.
  21. - [@190n](https://github.com/190n)
  22. - [@alanstott](https://github.com/alanstott)
  23. - [@alii](https://github.com/alii)
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  75. - [@martinamps](https://github.com/martinamps)
  76. - [@mattermoran](https://github.com/mattermoran)
  77. - [@MiniGod](https://github.com/MiniGod)
  78. - [@mippbipp](https://github.com/mippbipp)
  79. - [@mmitchellg5](https://github.com/mmitchellg5)
  80. - [@nathanosoares](https://github.com/nathanosoares)
  81. - [@nektro](https://github.com/nektro)
  82. - [@nfreya](https://github.com/nfreya)
  83. - [@NicoCevallos](https://github.com/NicoCevallos)
  84. - [@nkxxll](https://github.com/nkxxll)
  85. - [@ocodista](https://github.com/ocodista)
  86. - [@paperclover](https://github.com/paperclover)
  87. - [@pfgithub](https://github.com/pfgithub)
  88. - [@prekucki](https://github.com/prekucki)
  89. - [@rekram1-node](https://github.com/rekram1-node)
  90. - [@remorses](https://github.com/remorses)
  91. - [@RiskyMH](https://github.com/RiskyMH)
  92. - [@robjtede](https://github.com/robjtede)
  93. - [@RyanGst](https://github.com/RyanGst)
  94. - [@shendongming](https://github.com/shendongming)
  95. - [@ShlomoCode](https://github.com/ShlomoCode)
  96. - [@sosukesuzuki](https://github.com/sosukesuzuki)
  97. - [@sqdshguy](https://github.com/sqdshguy)
  98. - [@ssing2](https://github.com/ssing2)
  99. - [@Tamicktom](https://github.com/Tamicktom)
  100. - [@taylordotfish](https://github.com/taylordotfish)
  101. - [@vadim-anthropic](https://github.com/vadim-anthropic)
  102. - [@veggiesaurus](https://github.com/veggiesaurus)
  103. - [@WhiteMinds](https://github.com/WhiteMinds)
  104. - [@xingxingmofashu](https://github.com/xingxingmofashu)
  105. - [@yinheli](https://github.com/yinheli)
  106. - [@zackradisic](https://github.com/zackradisic)
  107. - [@brunorodmoreira](https://github.com/brunorodmoreira)
  108. - [@pxseu](https://github.com/pxseu)

view on githubimported 2026-09-28 via github-releases