Bash 5.0 released

Version 5.0 of the Bash shell has been released."The most notable new features are several new shell variables: BASH_ARGV0,EPOCHSECONDS, and EPOCHREALTIME. The `history' builtin can remove ranges ofhistory entries and understands negative arguments as offsets from the endof the history list. There is an option to allow local variables to inheritthe value of a variable with the same name at a preceding scope. There isa new shell option that, when enabled, causes the shell to attempt toexpand associative array subscripts only once (this is an issue when theyare used in arithmetic expressions). The `globasciiranges' shell optionis now enabled by default; it can be set to off by default at configurationtime."