Erlang/OTP 20.0 是一个新的主要版本,带来了新功能、一些特征以及不兼容性的改进。 与第二次发布的 RC 版相比,只有很小的变化,下面列出了其中的一部分: ERTS: erlang:term_to_binary/1 更改了所有 atoms 的编码,由 ATOM_EXT 变为 ATOM_UTF8_EXT 和 SMALL_ATOM_UTF8_EXT。因此只有包含 unicode 字符的 atom 才使用 UTF8 标签编码,其他的 atoms像以前一样编码为 ATOM_EXT。 以下是 OTP 20 中的一些重要更新: Erts: Dirty schedulers enabled and supported on VM with SMP support. support for “dirty” BIFs and “dirty” GC. erlang:garbage_collect/2 for control of minor or major GC Erlang literals are no longer copied when sending messages. Improved performance for large ETS tables, >256 entries (except ordered_set) erlang:system_info/1 atom_count and atom_limit Reduced memory pressure by converting sub-binaries to heap-binaries during GC enif_select, map an external event to message Improvements of timers internally in the VM resulting in reduced memory consumption and more efficient administration for timers Compiler: Code generation for complicated guards is improved. Warnings for repeated identical map keys. #{'a'=>1, 'b'=>2, 'a'=>3} will warn for the repeated key a. By default there is now a warning when export_all is used. Can be disabled Pattern matching for maps is optimized New option deterministic to omit path to source + options info the BEAM file. Atoms may now contain arbitrary unicode characters. compile:file/2 has an option to include extra chunks in the BEAM file. 更新内容较多,详情点此查阅。 下载地址: http://erlang.org/download/otp_win32_20.0.exe http://erlang.org/download/otp_win64_20.0.exe Source code (zip) Source code (tar.gz) 发布主页 Erlang 是一个结构化,动态类型编程语言,内建并行计算支持。最初是由爱立信专门为通信应用设计的,比如控制交换机或者变换协议等,因此非常适合于构建分布式,实时软并行计算系统。 Erlang/OTP 20.0 发布,动态类型编程语言下载地址