HexChat

IRC client

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Windows 7/8

HexChat 2.10.1 ( x86 / x64 )

Visual C++ 2013 Redistributable ( x86 / x64 )

Dictionaries for spell checking ( r2 )

Python 2.7.8 for scripts ( x86 / x64 )

Python 3.4.2 for scripts ( x86 / x64 )

Perl 5.20.0 for scripts ( x86 / x64 )

Linux

Nearly all distributions have official packages for HexChat. On those which don’t, you may use contributed, unofficial packages:

OS X

Note that this is the first major release officially supporting OS X so some issues are known to exist.

Source