Time to score with version four —

OS X image editor Acorn hits version 4 with 150 new features

Performance enhancements are also part of the fourth major release.

Acorn's new vector tools
Acorn's new vector tools

Indie image editor Acorn has received a major update to version 4.0, bringing with it a number of new tools and UI updates that should satisfy new and longtime users. The release, available for $29.99 throughout the month of May from the Mac App Store (regularly $49.99), boasts 150 new features, including an improved filter interface, non-destructive filters, a new curves adjustment tool, and more.

Acorn creator Gus Mueller says Acorn 4 also comes with new shape features that allow you to better control your vector layers. There's also a new "skinny tools palette," which essentially splits the old unified palette so editing tools are on the left and inspector tools are on the right of the canvas. "Why the change? Acorn 4 includes more tools, and the end result was too much good stuff to fit in a single palette," the company said in a statement.

Those are just a taste of the changes included with Acorn 4, but Flying Meat Software (the company responsible for Acorn) also pointed out that the Mac software comes with a number of performance improvements that should result in faster drawing, editing, and filter operations. A full list of changes can be found via Acorn's release notes. And if you're not ready to commit to a $30 purchase, there's also a 14-day free trial available via Flying Meat's website.

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Channel Ars Technica