 In April 1995 FlexFAX was renamed HylaFAX with the 3.0pl0 release to avoid potential trademark issues.Following the 4.0pl0 release in September 1996, Leffler began to leave working on the project, which caused development to slow dramatically.He did release version 4.0pl1 in December; however, in February 1997 Sam officially handed maintainership of HylaFAX over to Matthias Apitz, who had previously been known for his maintainership of the SVR4 HylaFAX binary releases and the so-named "HylaFAQ".