And again, a lot of water has flown through <your favorite river>, so some highlights that might affect the end-users...

Personally I see myself going to use the stacked encoding quite a bit in the future:

 # Read GZipped CSV
 use PerlIO::gzip;
 my $aoa = csv (in => "test.csv.gz", encoding => ":gzip");

 # Write GZipped CSV
 use PerlIO::gzip;
 csv (
     in       => \@csv,
     out      => "test.csv.gz",
     encoding => ":via(gzip):encoding(utf-8)",
     );
[download]

1.40 - 2019-09-15

• Sheetnames are restricted to 31 characters in csv2xlsx
• The distributsion now has a cpanfile
• New: munge type db
• Do not generate xls/xlsx on empty CSV with csv2xlsx and csv2xls
• New: support $csv->formula (sub { ... })
• New: Support stacked encodings

1.39 - 2019-03-15

• Add options -w/-b/-Z to csvdiff
• Fix strict on streaming EOF

1.38 - 2018-12-30

• Name the duplicate headers on error 1013
• Add missing attributes to default list (doc only, David H. Gutteridge)
• Add support for combined keys
• Look at $NO_COLOR for csvdiff
• Add support for key-value pair

1.37 - 2018-09-27

• Add munge as alias for munge_column_names

1.36 - 2018-06-26

• Fixed memory leak (Thanks DaveM)
• Add undef_str attribute
• Move from DynaLoader to XSLoader