Breaking

This breaking change was unintentionally released early. However since this is the desired behaviour moving forward we're going to roll-forward with it.

Raw CSS @imports

This is a non-standard, and confusion feature. Implementors can now
opt into supporting @importing additional file extensions with
sass_option_push_import_extension.

An @import that resolves to a .css file will produce a deprecation
warning. This deprecation messaage will be removed in the upcoming 3.6
release.

DEPRECATION WARNING on line 1, column 8 of /libsass/test.scss:
Including .css files with @import is non-standard behaviour which will be removed in future versions of LibSass.
Use a custom importer to maintain this behaviour. Check your implementations documentation on how to create a custom importer.

(@xzyfer, #2613, #2615)

Community

• Add nim-sass to implementations list (@zacharycarter, #2592)
• Add Haskell bindings to implementations list (@jakubfijalkowski, #2612)
• Add SharpScss and LibSassHost bindings to implementations list (@tompazourek, #2623)
• Update node-sass link in implementations list (@xzyfer, b866ad5)
• Update Unicode doc after forcing UTF8/plain ASCII (@mgreter, #2596)
• Update compatibility section of the read me (@xzyfer, 9266d26)

Features

• Update sass2scss@v1.1.2 (@mgreter, #2602)
• Emit transparent colours as rgba(0, 0, 0, 0) (@xzyfer, #2298)
• Add a sass_option_push_import_extension C-API (@xzyfer, #1964)

Fixes

• Fix output/error for modulo zero operation (@mgreter, #2593)
• Fix automake build if sassc is missing (@mgreter, #2601)
• Fix handling of colours in @at directives (@mgreter, #2360)
• Fix edge case converting achromatic colors to HSL (@mgreter, #2604)
• Fix evaluation of arithmetic inside interpolation (@mgreter, #2203)
• Fix handling of @important in custom properties (@xzyfer, #2590)
• Fix duplicate definition of out_of_memory macro (@thatguystone, #2619)
• Fix merging of nested media queries with negation (@xzyfer, #2425)
• Fix regression in parsing selector with trailing escaped colon (@xzyfer, #2625)
• Fix segfault on empty custom properties (@xzyfer, sass/sassc#225)