Ashton-Tate Corp is offering Byline 2.0, a significant upgrade to its desktop publishing package: the new version includes mouse support, expanded laser jet and dot matrix printer output, a new rubber text (for people who want to produce their company cheques on the desk-top publishing system?) feature, additional graphics capabilities and support for IBM DisplayWrite Document Content Architecture Remote File Transfer file formats; priced at $300, Byline 2.0 will be available during the first calendar quarter of 1989.