v3.9.0

This release drops support for Go 1.21 and includes many fixes.

• cmd/shfmt
  • Switch the diff implementation to remove one dependency
• syntax
  • Protect against overflows in position offset integers
• interp
  • Use os.Pipe for stdin to prevent draining by subprocesses - #1085
  • Support cancelling reads in builtins when stdin is a file - #1066
  • Support the nocaseglob bash option - #1073
  • Support the Bash 5.2 @k parameter expansion operator
  • Support the test -O and test -G operators on non-Windows - #1080
  • Support the read -s builtin flag - #1063
• expand
  • Add support for case insensitive globbing - #1073
  • Don't panic when pattern words are nil - #1076

A special thanks to @theclapp for their contributors to this release!

Consider becoming a sponsor if you benefit from the work that went into this release!

Binaries built on go version go1.23.0 linux/amd64 with:

CGO_ENABLED=0 go build -trimpath -ldflags="-w -s -X=main.version=v3.9.0"