Adobe Illustrator CS4 was a significant upgrade in the product line, introducing several new features and improvements to existing tools. One of the most notable additions was the revamped gradient tool, which allowed for more intricate color manipulation and transparency in gradients.

Another exciting feature was the Blob Brush, which enabled multiple overlapping vector brush strokes to easily merge or join. This made it easier to create complex shapes and designs without having to use multiple brushes or layers.

Artboards were another significant addition to Adobe Illustrator CS4. These allowed users to create multiple versions of a piece of work within a single document, making it easier to experiment with different design concepts and iterations.

The ability to create multiple artboards was one of the main new features in CS4, inherited from FreeHand, which had previously been acquired by Adobe. This feature enabled designers to work on multiple projects or variations of a project within the same file.

Adobe Illustrator CS4 also saw improvements to existing tools, as well as the introduction of brand-new ones. These improvements and additions made it easier for users to create complex designs, illustrations, and graphics with precision and accuracy.

In October 2018, Adobe released the latest version, Illustrator CC 2019, which marked the 23rd generation in the product line. This new version was part of Adobe's shift towards a monthly or annual subscription service delivered over the internet, known as Creative Cloud.

Adobe Illustrator has been reviewed as the best vector graphics editing program by PC Magazine in 2018. Originally designed for the Apple Macintosh, development of Adobe Illustrator began in 1985. Today, it is a widely used and respected tool among graphic designers, artists, and creatives.

If you're interested in trying out Adobe Illustrator CS4, you can download the free trial version or purchase a subscription to Adobe Creative Cloud to access the latest version.

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