- New: Option "Classic tab background".
- New: Option "Disable the space between tabs".
- New: Option "Disable the close buttons".
- Fixed: The link to the AMO extension page had a typo and led to nowhere (thanks to g4027228).
- Fixed: Under Windows 10 (in recent TB versions) the edges of the selected tab weren't shown (thanks to Otavio).
- Fixed: In maximized window mode the top of the tabs weren't clickable. See reviews by Helder and Theobald93 (thanks to reg2s for the help).
- Cosmetic changes and improvements of the tab appearance.
- Special fixes for the changes in Thunderbird v52 (and higher) of the tab appearance.
- Changed the "icon.png" of the extension.

- Initial release.