• Preserve &readonly setting even if the file itself isn't read-only (e.g., using vim -R or :view)
• Let Vim detect file encoding and file format when opening the file
• Remove unnecessary (and potentially damaging) changing of &encoding when reading/writing the encrypted file
• Avoid adding extra blank lines to buffer when loading unencrypted files
• Set &buftype='acwrite' to ensure encrypted buffers are only saved via the plugin's BufWriteCmd (#77, #81, #86)
• Add support for Gpg4win so the plugin can be used under cygwin (#62)
• Better mimic Vim's behavior when using :saveas or :w newfile, and leave the original buffer modified
• Improve handling of options and recipients buffers to avoid one triggering the other (#89)
• Check for the standard armor header, rather than inspecting gpg's output to determine if a file is armored (#82)