What is new in Less 3.x ?

[harrymt]

Nowhere can I find a list of new things in 3.x.

Anyone share?

[matthew-dean]

The docs themselves are updated (although a bit behind current changes) to what's coming in 3.x. But that's true there is no "what's new" document yet. See: http://lesscss.org/3.x/

There is a less-meta task tracking 3.x branch changes which I'm maintaining. See: less/less-meta#20

[matthew-dean]

Added up-for-grabs since a "What's new" would be welcome for the 3.x docs.

[Andersos]

Is it safe to upgrade from 2.x to 3.x what are the breaking changes?

[matthew-dean]

@Andersos

• javascriptEnabled is false by default in 3.x for security reasons, meaning you can't use inline JS tags without enabling the option
• Some behavior of calc() is slightly different (won't try to evaluate as Less math)

Other than that, lots new. Look at @plugin, Maps, each() and if() functions in docs. http://lesscss.org. Also new Less options like rewriteUrls and math settings.

In reality, few if any breaking changes, unless you are importing from a third-party library that uses deprecated features.

[harrymt]

@matthew-dean perhaps these could go somewhere on the main less website?