![]() The most important collections changes are: - Simpler method signatures - No more CanBuildFrom. Most ordinary code that used the old collections will continue to work as-is, except as detailed below. This is the centerpiece of the release. Collections redesign: - Standard library collections have been overhauled for for simplicity, performance, and safety. Compiler: 5-10% faster, deterministic output, improved optimizer. Language: Literal types, partial unification, by-name implicits, more. ![]() Elsewhere, useful classes and methods have been added. ![]() ![]() Standard library: Future is faster and more robust. Release summary: - 2.13 improves Scala in the following areas: - Collections: Standard library collections have been overhauled for simplicity, performance, and safety. ![]()
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