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Is there a list of which features were added to specific releases (versions) of Bash?

Here are some links to official Bash documentation:

  • NEWS: a file tersely listing the notable changes between the current and previous versions

  • CHANGES: a complete bash change history

  • COMPAT: compatibility issues between bash3 and previous versions

Here's a partial list of the changes, in a more compact format:

Feature

Added in version

mapfile

4-alpha1

x+=string

3.1-alpha1

printf -v var

3.1-alpha1

{x..y}

3.0-alpha

${!array[@]}

3.0-alpha

[[ =~

3.0-alpha

<<<

2.05b-alpha1

i++

2.04-devel

for ((;;))

2.04-devel

/dev/fd/N, /dev/tcp/host/port, etc.

2.04-devel

a=(*.txt) file expansion

2.03-alpha

extglob

2.02-alpha1

[[

2.02-alpha1

builtin printf

2.02-alpha1

$(< filename)

2.02-alpha1

** (exponentiation)

2.02-alpha1

\xNNN

2.02-alpha1

(( ))

2.0-beta2

BashFAQ/061 (last edited 2024-04-14 22:29:57 by emanuele6)