SecureRandom New method: SecureRandom.alphanumeric Set New methods: Set#to_s as alias to #inspect [Feature #13676] Set#=== as alias to #include? [Feature #13801] Set#reset [Feature #6589] StringIO StringIO#write accepts multiple arguments StringScanner New methods: StringScanner#size, StringScanner#captures, StringScanner#values_at [Feature #836] URI Relative path operations no longer

Secure random number generator interface. This library is an interface to secure random number generators which are suitable for generating session keys in HTTP cookies, etc. You can use this library in your application by requiring it:

SecureRandom Interface for secure random number generator Set Provides a class to deal with collections of unordered, unique values Shell An idiomatic Ruby interface for common UNIX shell commands Shellwords Manipulates strings with word parsing rules of UNIX Bourne shell Singleton Implementation of the Singleton pattern for Ruby Synchronizer A module

Create a new session id. The session id is a secure random number by SecureRandom if possible, otherwise an SHA512 hash based upon the time, a random number, and a constant string. This routine is used internally for automatically generated session ids.