Solution Focused Brief Therapy (SFBT) has consistently emphasized the importance of utilizing language to co-construct with clients. This microanalysis study looks specifically at presuppositions, one linguistic tool, and investigates how SFBT therapists use presuppositions in their co-constructive work. This study compares three 1.0 SFBT therapists and three 2.0 SFBT therapists regarding their use of presuppositions. Results from this study support McKergow’s (J Solut Focus Brief Ther 2:1–17, 2016) claims that an evolutionary change has already taken place within the practice of SFBT. 2.0 SFBT therapists are more likely to use presuppositions in general, and are more likely to use conditional presupposition specifically to build descriptions rather than focusing on action toward goals. Also, 2.0 therapists are also more likely to dedicate time to asking relationship-oriented presuppositional questions than 1.0 therapists.