CorelDRAW Graphics Suite X6 (build 16.1.0.843 — the X6.1 update) is the first post‑release update to the X6 family (initial X6 = 16.0.0.707). Released August 2012 as a 64‑bit‑aware update, X6.1 adds UI improvements, stability/performance fixes, and several functional enhancements across CorelDRAW, Corel PHOTO‑PAINT and the suite utilities.
The 16.1 update (Service Pack 1) introduced several refinements to the original X6 release: CorelDRAW and Corel DESIGNER - Patches and Updates CorelDRAW Graphics Suite X6 16.1.0.843 -64 bit-...