Google has updated its logo several times since 1997. The logo was first changed in September 1998 for one month, then updated again from October 1998 to May 1999. From May 1999 to 2010, Google used the same logo for over 10 years. The logo was then updated in May 2010 and remained until September 2013. From 2013 to September 2015, Google used another logo before unveiling its current logo on September 1, 2015.