Bun Releases & Changelog

Apr 20, 2026

Bun v1.3.13

To install Bun v1.3.13

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.3.13:

bun upgrade

Read Bun v1.3.13's release notes on Bun's blog

Thanks to 8 contributors!

Apr 10, 2026

bun-v1.3.12 ↗

Bun v1.3.12

To install Bun v1.3.12

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.3.12:

bun upgrade

Read Bun v1.3.12's release notes on Bun's blog

Thanks to 8 contributors!

Mar 18, 2026

bun-v1.3.11 ↗

Bun v1.3.11

To install Bun v1.3.11

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.3.11:

bun upgrade

Read Bun v1.3.11's release notes on Bun's blog

Thanks to 15 contributors!

Feb 26, 2026

bun-v1.3.10 ↗

Bun v1.3.10

To install Bun v1.3.10

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.3.10:

bun upgrade

Read Bun v1.3.10's release notes on Bun's blog

Thanks to 11 contributors!

Feb 8, 2026

bun-v1.3.9 ↗

Bun v1.3.9

To install Bun v1.3.9

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.3.9:

bun upgrade

Read Bun v1.3.9's release notes on Bun's blog

Thanks to 10 contributors!

Jan 29, 2026

bun-v1.3.8 ↗

Bun v1.3.8

To install Bun v1.3.8

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.3.8:

bun upgrade

Read Bun v1.3.8's release notes on Bun's blog

Thanks to 4 contributors!

Jan 27, 2026

bun-v1.3.7 ↗

Bun v1.3.7

To install Bun v1.3.7

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.3.7:

bun upgrade

Read Bun v1.3.7's release notes on Bun's blog

Thanks to 11 contributors!

Jan 13, 2026

bun-v1.3.6 ↗

Bun v1.3.6

To install Bun v1.3.6

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.3.6:

bun upgrade

Read Bun v1.3.6's release notes on Bun's blog

Thanks to 23 contributors!

Dec 17, 2025

bun-v1.3.5 ↗

Bun v1.3.5

To install Bun v1.3.5

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.3.5:

bun upgrade

Read Bun v1.3.5's release notes on Bun's blog

Thanks to 10 contributors!

Dec 7, 2025

bun-v1.3.4 ↗

Bun v1.3.4

To install Bun v1.3.4

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.3.4:

bun upgrade

Read Bun v1.3.4's release notes on Bun's blog

Thanks to 14 contributors!

Nov 21, 2025

bun-v1.3.3 ↗

Bun v1.3.3

To install Bun v1.3.3

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.3.3:

bun upgrade

Read Bun v1.3.3's release notes on Bun's blog

Thanks to 19 contributors!

Nov 8, 2025

bun-v1.3.2 ↗

Bun v1.3.2

To install Bun v1.3.2

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.3.2:

bun upgrade

Read Bun v1.3.2's release notes on Bun's blog

Thanks to 18 contributors!

Oct 22, 2025

bun-v1.3.1 ↗

Bun v1.3.1

To install Bun v1.3.1

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.3.1:

bun upgrade

Read Bun v1.3.1's release notes on Bun's blog

Thanks to 15 contributors!

Special thanks to Martin Schwarzl of Cloudflare for fuzzing & reporting several bugs!!

Oct 10, 2025

bun-v1.3.0 ↗

Bun v1.3

Read the blog post

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.3:

bun upgrade

Sep 28, 2025

bun-v1.2.23 ↗

Bun v1.2.23

To install Bun v1.2.23

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.2.23:

bun upgrade

Read Bun v1.2.23's release notes on Bun's blog

Thanks to 16 contributors!

Sep 14, 2025

bun-v1.2.22 ↗

Bun v1.2.22

To install Bun v1.2.22

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.2.22:

bun upgrade

Read Bun v1.2.22's release notes on Bun's blog

Thanks to 14 contributors!

Aug 25, 2025

bun-v1.2.21 ↗

Bun v1.2.21

To install Bun v1.2.21

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.2.21:

bun upgrade

Read Bun v1.2.21's release notes on Bun's blog

Thanks to 23 contributors!

Aug 10, 2025

bun-v1.2.20 ↗

Bun v1.2.20

To install Bun v1.2.20

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.2.20:

bun upgrade

Read Bun v1.2.20's release notes on Bun's blog

Thanks to 19 contributors!

Jul 19, 2025

bun-v1.2.19 ↗

Bun v1.2.19

To install Bun v1.2.19

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.2.19:

bun upgrade

Read Bun v1.2.19's release notes on Bun's blog

Thanks to 18 contributors!

Jul 3, 2025

bun-v1.2.18 ↗

Bun v1.2.18

To install Bun v1.2.18

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

To upgrade to Bun v1.2.18:

bun upgrade