October 29, 2009 Patch
(Haunted Hallowe'en Special
- The Ghastly Gibus was added to the game.
September 30, 2010 Patch (Mann-Conomy Update)
- The stripe of the Ghastly Gibus was made paintable.
- [Undocumented] Added a community-contributed description for the Ghastly Gibus.
October 8, 2010 Patch
October 27, 2010 Patch (Scream Fortress Update)
- [Undocumented] Updated the description to now say "This is a special Halloween 2010 item".
- [Undocumented] Changed Ghastly Gibuses that were obtained before the Scream Fortress to Ghastlier Gibuses.
December 2, 2010 Patch #1
- The Ghastly Gibus' painting texture was improved.
- Painting now colors the entire hat. Previously coloring only affected the band near the brim.
October 27, 2011 Patch (Very Scary Halloween Special)
- [Undocumented] Updated the description to now say "This is a special Halloween 2011 item".
- [Undocumented] Changed Ghastly Gibuses that were obtained before the Very Scary Halloween Special to Ghastlier Gibuses.
April 18, 2012 Patch
- Added LODs for all classes.
- Fixed the position on the Sniper.
October 26, 2012 Patch (Spectral Halloween Special)
- [Undocumented] Added "Ghostly" style.
October 29, 2014 Patch (Scream Fortress 2014)
- [Undocumented] Added Strange quality.