v2.0

At last, the rewrite is complete! (no binaries as of yet)

• New redirection COMMANDS, with more predictable behaviour
• Use extended regex in switch statements
• Bugfix: Job control
• Bugfix: Very long pipe streams no longer deadlock. The first n-1 chained commands of an n-long pipeline are now always forked off as separate processes.
• Array substitution is now ${name key} (temporary change, old syntax will return)
• New str command (replaces string)
• New arr command (replaces array)
• New BUILT-IN list command (no longer part of stdlib)
• Speaking of stdlib, it has been removed (why not just use .? It's a shell, not C++)
• Nicer codebase in general

To-do:

• Re-add regexp, maybe regcomp
• Add unknown feature, similar to Tcl.
• Re-add old array syntax $...(...)
• Improve performance

v1.0

A very small changelog: I now consider v1.0 to be in a very useable state!
If I feel like it, I might continue working on potential features like the fabled unknown for v1.1, or maybe even upvar or uplevel.

• read -d now supports more than one delim
• expr now has a comma/chaining operator
• Directory stack QoL improvements
• Alias substitution bugfixes
• Add max possible long double precision
• Maybe, other bugfixes too.
• Fixed string range behaviour

v0.9b

Long time no see, eh? This is the ultimate expr overhaul, behold:

• Complete expr reimplementation from scratch using Flex/Bison instead of S.Y. algorithm
• Slight performance increase
• Add trunc
• Add sec, csc, arcsin, arccos, arcsec, arccsc and various different aliases for each.
• Removed -r option from the command (will probably return in the future. Just use include mathop in the meantime)
• IMPLICIT EXPR CALLING for all built-in functions
• IMPLICIT 0 RETURN for empty expressions
• General, non-expr related QoL improvements
• Updated docs

v0.9a

• Deprecated old >(...) fd syntax
• Add new syntax (x>, x>>, x> &y, x> &-, ^, ^^)
• Implement process substitution/pipeline branching (<{...})
• Prompt is now printed to stderr (so you can now redirect an interactive session to a file)
• Change order of evaluation (pipes first, then redirections)
• Parens are now considered barewords! (you can now glob words like (*))
• Same for backslashes
• Bugfixes for very minor issues
• Huge performance increase (more efficient redirection mechanism)

v0.8b

Zrc v0.8b is now live:

• Add Cdpath support
• Add executable path hashing mechanism
• Compile-time options for path hashing

v0.8

Back from a long hiatus. This is also the first time I'm uploading a Windows (cygwin) release :)

• Add builtin (functions like the Plan 9 rc's equivalent)
• switch pattern matching (regex) now requires full match instead of partial
• Fix file descriptor behavior
• Speed up fd syntax parsing
• Add -f option for read
• Slight code refactor (not really a feature)
• Better async safety for job control messages

v0.7b

Zrc v0.7b has now been released:

• expr shunting yard speed up, almost 200% faster
• %include is now include
• The commands ! and @ can now also be called by their alt names, not and fork
• ARG_MAX CLI arguments now supported
• General QoL improvements
• Slight code refactoring, including performance boosts
• Early draft of a new library (ipc)
• Despite all this, somehow the binary is somehow smaller now

v0.7a

v0.7a syntax update

• New ${...} syntax support
• Perform substitutions inside let lists
• Deprecated elsif for more dynamic chaining approach
• Fix job control issues
• General bugfixes

v0.7

Zrc v0.7 has now been released:

• round() for nearest integral value
• More consistent I/O behaviour
• Add rlimit for modifying stack size
• Performance improvements
• Bug fixes
• Enhanced Termux support

v0.6s

v0.6 bugfix+stripped binary