On the 25th anniversary of the first PowerBook, Apple has announced three new MacBook Pro models. The long-awaited new flagship 13″ and 15″ MacBook Pros bring performance boosts compared to the previous generation, revamped ergonomics, and a new ‘Touch Bar’, aimed at making the machines more versatile for creative professionals.

It’s no surprise that the two new flagship MacBook Pro models are slimmer and lighter than their predecessors, but the ergonomic changes are more fundamental than that. Their new ‘force touch’ trackpads are twice as large as the previous-generation, and the keyboards have been redesigned, with a slimmer butterfly switch design, that Apple claims will offer superior tactile feel to the similar switches in the 12″ MacBook.

The big news, however, is the addition of a ‘Touch Bar’. Much anticipated (and leaked), this is a touch-sensitive display strip, that effectively replaces the traditional function keys which have been a feature of consumer computing for more than 40 years. The Touch Bar is fully customizable, and its default functions change depending on the application. Obvious uses including scrubbing through a video timeline in Final Cut Pro, and quick text formatting and email flagging in Apple’s Mail app.

In addition to the new 13″ and 15″ Touch Bar-equipped models, a third new 13″ MacBook Pro has also been introduced, which is even slimmer, even lighter, but features only two thunderbolt ports, and a traditional function key array. Base configurations of the new 13″ and 15″ MacBook Pro models will be available starting at $1799 and $2399 respectively, and the slimmer non-Touch Bar model will start at $1499.

During a demo at the launch event, a representative from Adobe demonstrated how the Touch Bar can be used in Photoshop to quickly switch between layers, blending modes and select brushes without needing to access any of the usual on-screen pallets – effectively allowing true ‘full-screen’ image editing. Adobe is expecting to add full support for the Touch Bar before the end of 2016.

Another big change is how the new MacBook Pro models manage peripherals. Gone is the built-in SD reader, MagSafe connector, and any traditional USB or HDMI ports. Instead, the new computers offer four Thunderbolt 3 ports, all of which can serve as power, USB 3, HDMI, display, or ThunderBolt connectors.

In terms of performance, Apple claims that the new MacBook Pro’s displays are 67% brighter, offer a 67% greater contrast ratio and 25% greater color gamut than the previous generation, and the 15in version offers 130% greater 3D graphics performance. Video editing on the 15in model should be 57% faster than the previous generation, thanks to a quad-core Intel Core i7 processor, faster 2133Mhz memory and up to 4GB of video Ram. Built-in storage has been boosted too, up to 3TB with a maximum rated data transfer rate of 3.1 gigabytes per second.