This version of Undertale was later deemed official on Janu, and was later made available for those who bought the DRM-free version of Undertale on January 21, 2016. Beta testing for Undertale v1.001 began on January 19, 2016, and was only available for those with the Steam version of Undertale. Toby Fox first announced Undertale v1.001 on January 12, 2016. Undertale v1.001 For images showing the changes, see here. Undertale v1.00 was the first complete version of UNDERTALE that was released on September 15, 2015.
Note: All differences on other platforms are from the latest Windows version unless stated otherwise. This article contains a collection of platform and version differences in Undertale.
