October 27, 2010 Patch
(Scream Fortress Update
- The Ghastlier Gibus was added to the game.
- [Undocumented] Changed Ghastly Gibuses that were obtained before the Scream Fortress Update to Ghastlier Gibuses.
October 28, 2010 Patch
- Updated the Ghastlier Gibus to be tradable.
December 2, 2010 Patch #1
- The Ghastlier Gibus' painting texture was improved.
January 19, 2011 Patch
- Updated model with optimizations and new LODs.
- [Undocumented] The textures of the Ghastlier Gibus were updated.
April 14, 2011 Patch (Hatless Update)
- Added new style "Ghastly".
October 27, 2011 Patch (Very Scary Halloween Special)
- [Undocumented] Updated the description to now say "This is a special Halloween 2010 item".
- [Undocumented] Changed Ghastly Gibuses that were obtained before the Very Scary Halloween Special to Ghastlier Gibuses.
- [Undocumented] Changed Ghastlier Gibuses that were obtained before the Very Scary Halloween Special to Ghastlierest Gibuses.
October 26, 2012 Patch (Spectral Halloween Special)
- [Undocumented] Added "Ghostly" style.
October 29, 2014 Patch (Scream Fortress 2014)
- [Undocumented] Added Strange quality.