v0.11.0

• Use proc for header's default_attribute (#18, thanks to @JohannaHartmann)
• Added support for Ruby 3

v0.10.0

• Fix DATEV version: v7 is the latest format (#17, thanks to @ChrisKaun)

v0.9.0

• Add validation for Belegfeld 1 and Belegfeld 2 to restrict allowed chars (#14, thanks to @sunsations)

v0.8.2

• Increase BU-Schluessel limit to 4 (#12, thanks to @zellnerFinstreet)

v0.8.1

• Increase limit of Belegfeld 1 from 12 to 36 (#11, thanks to @sunsations)

v0.8.0

• Add support for DATEV version 7.2 (#10, thanks to @georf)
• Drop support for Ruby 2.2 (because EOL)
• Add support for Ruby 2.6

v0.7.0

• Booking: Fix field order regarding "Zusatzinformation" (thanks to Arno Prinz)
• Drop support for Ruby 2.0 and 2.1 (because of EOL)
• Cleanup

v0.6.0

Added additional header fields according to DATEV v5.0 (#8, thanks to @ushi-as)

v0.5.1

Fixes:

• Use CR/LF line separators
• Fix errors in contact export reported by DATEV-Prüfprogramm v5.0
• Prevent Encoding::UndefinedConversionError caused by UTF-8 input

Thanks to @mtgrosser for contributing!

v0.5.0

• Build the CSV the manual way (without using CSV library)
• Fixed missing quotes for string fields (#4)
• Added additional fields according to DATEV v5.0 (#2, thanks to @mseel)
• Added minimum validation for field "Berater"