v1.11.0

• Permit use of rubyzip version 2.x #15

v1.10.0

• Ruby 2.7 compatibility #13
• Remove support for ruby <2.5
• Run tests on ruby 2.5, 2.6, 2.7, 3.0

v1.9.0

• Support multiline strings #12

v1.8.0

• Use SAX to parse rows count using dimensions or rows #10 #11
• Support missing fmt #10 #11

v1.7.1

• Fix formatted shared strings (regression in 1.7.0)

v1.7.0

• Support StringIO in Workbook#open
• Use frozen_string_literal: true magick comments to improve memory usage in Ruby 2.4+

v1.6.1

Parse dates when date is a float (regression introduced in v1.5.0)

v1.6.0

• Make automatic string conversion to floats and integers conigurable with auto_format option
• Fix automatic string conversion with octals ("0123" => 123)
• Typecast fractures to ruby rationals

v1.5.0

• Fallback to string when typecasting fails
• Min ruby version is now 2.1.0

v1.4.0

• Do not divide percentage by 100