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crystal v0.20.0 Release Notes

Release Date: 2016-11-22 // over 7 years ago
    • (breaking change) Removed ifdef from the language
    • (breaking change) Removed PointerIO
    • (breaking change) The body property of HTTP::Request is now an IO? (previously it was String). Use request.body.try(&.gets_to_end) if you need the entire body as a String.
    • (breaking change) MemoryIO has been renamed to IO::Memory. The old name can still be used but will produce a compile-time warning. MemoryIO will be removed immediately after 0.20.0.
    • (breaking change) Char#digit? was split into Char#ascii_number? and Char#number?. The old name is still available and will produce a compile-time warning, but will be removed immediately after 0.20.0.
    • (breaking change) Char#alpha? was split into Char#ascii_letter? and Char#letter?. The old name is still available and will produce a compile-time warning, but will be removed immediately after 0.20.0.
    • (breaking change) The Iterable module is now generic
    • Many String and Char methods are now unicode-aware, for example String#downcase, String#upcase, Char#downcase, Char#upcase, Char#whitespace?, etc.
    • ➕ Added support for HTTP client and server streaming.
    • ➕ Added support for ARM (thanks @ysbaddaden)
    • ➕ Added support for AArch64 (thanks @ysbaddaden)
    • ➕ Added support for LLVM 3.9 (thanks @ysbaddaden)
    • Added __END_LINE__ magic constant in method default arguments: will be the last line of a call (if the call has a block, it will be the last line of that block)
    • ➕ Added @def inside macros that takes the value of the current method
    • 💅 API docs have a nicer style now, and notes like TODO and DEPRECATED are better highlighted (thanks @samueleaton)
    • 👍 Slight improvement to debugging support (thanks @ggiraldez)
    • 🐧 Line numbers in backtraces (linux only for now) (thanks @ysbaddaden)
    • ➕ Added iteration times to Benchmark.ips (thanks @RX14)
    • 👍 Allow HTTP::Client block initializer to be used when passing an URI (thanks @philnash)
    • JSON.mapping and YAML.mapping getter/setter generation can now be controlled (thanks @zatherz)
    • Time is now serializable to JSON and YAML using ISO 8601 date-time format
    • ➕ Added IO::MultiWriter (thanks @RX14)
    • ➕ Added String#index(Regex) and String#rindex(Regex) (thanks @zatherz)
    • ➕ Added String#partition and String#rpartition (thanks @johnjansen)
    • Added FileUtils.cd, FileUtils.mkdir, FileUtils.mkdir_p, FileUtils.mv, FileUtils.pwd, FileUtils.rm, FileUtils.rm_r, FileUtils.rmdir (thanks @ghivert)
    • ➕ Added JSON::Builder#raw_field (thanks @kostya)
    • ➕ Added Enumerable#chunks and Iterator#chunk (thanks @kostya)
    • ➕ Added Iterator#with_index
    • Several enhancements to the Random module: now works for any integer type and avoids overflows (thanks @BlaXpirit)
    • ⚡️ Optimized Array#sort by using introsort (thanks @c910335)
    • 🛠 Several bug fixes