Adobe Streamline 1.0b1, January 17, 1989. The application file carries
a creation date of January 4, 1989, and a modification date of January
18, 1989, preceding the official 1.0 release's creation date by about
a month.

From the included MS Word doc:

> To: Adobe Staff
>  From: Andromeda Software
>  Subject: Software update (version 1.0b1)
>  Date: Jan. 17, 1989
>
> 1\. Changed to new user interface for setting conversion options.
>
> 2\. Solved problems with opening Streamline files by other
> applications by using carriage returns
>  rather than line feeds.
>
> 3\. Doubled values for the 5 choices in 'convert long lines as'.
>
> 4\. Improved the way centerlining handles close parallel lines by
> making the program use more
>  intellegent [sic] junction point optimization.
>
> The following remains to be done:
>
> 1\. The welcome window needs to be installed, with personalization.
>
> 2\. The icons need to be installed.

See also:
[Adobe Streamline 1.0][1] (official release)

Compatibility
Architecture: 68k

  [1]: http://macintoshgarden.org/apps/adobe-streamline-10