5 + GC performance and encapsulation were greatly improved.
6 + PMC freeze refactored.
7 + More Makefile and build improvements.
9 + The Array PMC was removed.
10 + Several deprecated vtables were removed.
11 + The OrderedHash PMC was substantialy improved.
13 + Packaging improvements on some operating systems.
15 + Some cases in pbc_merge are now handled.
16 + Improvements were made to the dependency checker.
17 + New tool nativecall.pir added.
21 + Context PMCs now support attribute-based introspection
22 + Context and CallSignature PMCs merged into CallContext
23 + .lex directive throws exceptions when used with incorrect register types
25 + Packaging improved for free OS distributions
26 + PPC, PPC64, and ARM now tested when running Linux
28 + Minor improvements to the profiling runcore
29 + Improvements from the CallContext PMC merge
31 + In/out parameters in STRING modification functions
32 + Void handling in NCI signatures
33 + Parameter passing opcodes order in PBC
35 + Continued migration of core tests from Perl 5 to PIR
37 + dependency checker improved
39 + Deprecation cycle length changed to three months from six
40 + GC accuracy improved
41 + PMC freeze improvements; much more reliable
42 + Makefile improvements for dependency handling
46 + Made profiling runcore output format configurable and extensible
47 options include "pprof" and "none" ("binary" and "callgrind" are planned)
48 + Added environment variables to specify profiling output type and filename
49 (PARROT_PROFILING_OUTPUT and PARROT_PROFILING_FILENAME)
50 + Began merging Freeze/Thaw and Bytecode generator/loader
52 + Included latest nqp-rx compiler, with many improvements
53 - GLOBAL:: package identifier
54 - dynamic variables look in global namespace
55 - $obj."$method" syntax
56 - :p(os) and :c(ontinue) option on regexes
57 - try/CATCH/CONTROL handling
58 - support leading & on subroutine declarations
59 - allow "category:<symbol>" names (for builtin operators)
60 - simple version of smartmatch operator
61 - simple regex matches
62 - updated HLL::Compiler with new import/export methods
64 + Portability updates for RTEMS, and Intel architectures with GNU compilers
65 + Completed conversion of ticket tracking system from RT to Trac
66 + New draft of PDD31 for HLL export API and import implementation
67 + Several (build time, runtime) performance improvements
68 + Converted many tests to PIR, reducing test execution time
69 + Various bugfixes, code cleanups, and coding standard fixes
73 + The FileHandle PMC now exposes the exit code of child process that was run as pipe.
74 + Experimental support for overriding VTABLE invoke in PIR objects was added.
75 + The method 'type' was added to the PackfileAnnotations PMC.
76 + The internals of the parrot calling conventions, PCC, were reworked.
77 All call paths now use a CallSignature object for passing arguments and return values.
78 + The new API-function 'Parrot_ext_call' was added for calling into C-land.
79 + The fixed-size allocator was improved.
80 + The files installed by 'make install-dev' are now covered by 'make install' as well.
81 + The experimental ops 'fetch' and 'vivify' were added.
82 + The -I option to the command 'parrot' now prepends items to the search path.
83 + The Context struct was substituted with auto attributes (context_auto_attrs branch).
84 + Use the osname determined in auto::arch in subsequent configuration steps (convert_OSNAME branch).
85 + Eliminated dependence on Perl 5 '%Config' in auto::format (auto_format_no_Config branch).
86 + MultiSub PMCs now stringify to the name of their first candidate,
87 instead of the number of candidates.
88 + The platform detection at the start of the configuration process was improved.
89 + The 'lineof' method on CodeString objects now precomputes line number information
90 to be more efficient on variable-width encoded strings.
91 + P6object now supports .WHO and .WHERE methods on protoobjects.
93 + A shiny new self-hosting implementation of NQP has been added in ext/nqp-rx.
94 - New NQP available as nqp-rx.pbc or parrot-nqp fakecutable.
95 - NQP includes direct support for grammars and regexes, including protoregexes.
96 - NQP has a new PAST-based regex engine (intended to replace PGE).
97 - Regexes may contain code assertions, parameters, lexical declarations, and more.
98 - Double-quoted strings now interpolate scalar variables and closures.
99 - Subroutine declarations are now lexical by default.
101 - PAST::Block now supports an 'nsentry' attribute.
102 - PAST::Var allows 'contextual' scope.
103 - Attribute bindings now return the bound value.
105 + Fixes for the port of Parrot to RTEMS were applied. Yay, first port to a real time OS!
106 + On NetBSD, shared libs are now used.
108 + Use the the fixed-sized allocator in the Context and the CallSignature PMC.
109 + Many small speed improvements.
111 + MT19937, the Mersenne twisted pseudorandom number generator, is now hosted on github and
112 will be removed from the Parrot core. (eligible in 2.1)
113 + The 'Parrot_call_*' functions for invoking a sub/method object from C are
114 deprecated. They are replaced by 'Parrot_ext_call'. (eligible in 2.1)
115 + All bitwise VTABLE functions are deprecated. (eligible in 2.1)
116 + All bitwise ops will become dynops. (eligible in 2.1)
117 - Realized deprecations
118 + The slice VTABLE entry was removed.
119 + The last traces of the 'malloc' garbage collector were removed.
120 + Parrot_pcc_constants() was renamed to Parrot_pcc_get_constants().
121 + The deprecated functions from the Embedding/Extension interface were removed.
122 + The library YAML/Parser/Syck.pir was removed.
123 + The VTABLE function instantiate_str() was removed.
124 + Building of parrot_nqp was removed.
126 + The test coverage of the time-related ops was much improved.
127 + New testing functions in Test::More: lives_ok() and dies_ok().
128 + The Perl 5 based test scripts t/op/bitwise.t, t/op/comp.t, t/op/inf_nan.t,
129 t/op/literal.t, t/op/number.t, t/op/sprintf2.t, and t/op/00ff-dos.t were converted to PIR.
130 + The test scripts t/op/annotate.t and t/op/time.t have begun
131 to be translated from Perl 5 to PIR.
132 + In some tests the dependency on %Config from Perl 5 was eliminated.
134 + The meaning of 'p' means in NCI function call signatures was clarified.
136 + The stub for a new language, as created by mk_language_shell.pl,
137 now relies on the PIR-based tools, which are replacing the Perl 5-based tools.
138 + The library Configure.pir was added.
139 + The library distutils.pir was added.
141 + The mailing list parrot-users and a corresponding google group was created,
142 http://groups.google.com/group/parrot-users.
143 + Many bugfixes, code cleanups, and coding standard fixes.
147 + Parrot_capture_lex has been added to the PARROT_EXPORT API
148 + PARROT_MAX_ARGS has been increased from 8 to 16 to allow for ops that take more than 8 args
150 + The profiling runcore now caches metadata for improved performance
151 - Maintenance and cleanup
152 + Expanded the Parrot debugger documentation
153 + Parrot debugger now uses the new Parrot STRING API
154 + Continue to port rest of internals to use the STRING API
156 + The JIT subsystem has been removed and is being written from the ground up. More
157 information can be found at https://trac.parrot.org/parrot/wiki/JITRewrite
158 + Implicit optional named parameters (eligible in 2.1)
159 + Continuation-based ExceptionHandlers (eligible in 2.1)
160 + Use of undocumented variables in class_init (eligible in 2.1)
161 + Parrot_oo_get_namespace (eligible in 2.1)
163 + Improved line number tracking in IMCC
165 + Converted many more Perl 5 tests to PIR
166 + Expanded test coverage of the CallSignature, Namespace, FixedPMCArray,
167 ResizeableIntegerArray and ExceptionHandler PMCs
171 + Added a fixed-size structure allocator to the Garbage Collector
172 + Added a "lazy" mode to the PObj and Fixed-Size memory allocators
173 + Added a profiling runcore, which generates Callgrind-compatible output
174 + Added lexical subsystem opcodes: find_dynamic_lex, store_dynamic_lex
175 + Converted Contexts to garbage-collectable PMC structures
176 + Created a new Context API
177 + Enhanced the PMC allocator to automatically allocate ATTR structures
179 + Optimized opcodes to cache the current Context for subsequent lookups
180 + Reduced string comparisons in VTABLE_isa
181 - Maintenance and cleanup
182 + Began proper encapsulation of STRING API
183 + Unified all PMC destruction functions
184 + Unified Continuation PMC and Parrot_cont structure
185 + Unified Sub PMC and Parrot_sub structure
186 + Removed PMC_EXT structure
187 + Removed PMC_Sync from PMC
188 + Removed UnionVal from PMC structure
190 + Fixed several stack-walking bugs in Garbage Collector code
191 + Fixed bug when copying a NULL STRING, now returns empty STRING struct
193 + Converted several Perl5 tests to PIR
194 + Expanded test coverage of NameSpace PMC
196 + Made Parrot Compiler Toolkit available in the base install
200 + Removed several deprecated functions and features
201 + Removed bsr, jsr, branch_cs, and ret opcodes
202 + Removed global stacks system
203 + Changed OPS file format to include explicit preamble
204 + Changed all "new 'Iterator'" instructions into 'iter' instructions
205 + Removed Configure.pl options for specifying non-working GC cores
206 + Removed unexecuting code as found by Coverity
207 + Improvements to the Parrot Debugger
208 + Added experimental fixed-size structure allocator to the GC
209 + Added experimental lazy arena allocation to the GC
210 + Refactored hashes, keys, and iterators
211 + Added "corevm" make target to build Parrot without all the supporting libraries
212 + Removed Random PMC type and added in a "rand" dynop
213 + Optimization and Improvements to the NCI thunk generator
214 + New include file libpaths.pasm
216 + Multiple .local with same name and different type is now an error on IMCC.
218 + Improved support for detecting Fink and Macports
219 + Updated search directories for libraries
221 + "Parrot Developers Guide: PIR" released to publisher and available to purchase
222 + Improved documentation about Parrot Debugger
223 + Update PGE Documentation
225 + Deprecate 'PASM1' compiler object, update to warn instead of segfault
227 + Fixes to code, documentation, and standards
231 + Key and Iterator refactor
232 + Major pbc_to_exe generated code speed improvement
233 + New "Infinite Memory" GC core for demonstration purposes
234 + gc_debug runcore and GC-related heisenbug fixes
235 + Elimination of variable expansion in parrot_config
236 + CLI arguments are processed as Unicode by default
237 + Substantial optimizations in NCI
238 + Parrot builds on Win64
239 + Hashes can use native types as keys and values
240 + Fixed installed pbc_to_exe
241 + Simplification of PMC generation code
242 + Improved GC encapsulation and API documentation
244 + List of candidates for embedding API (docs/embed.pod)
245 + PIR book sent to publisher
247 + Several conversions of Perl test to pure PIR.
248 + C indentation coding standards test improvement
249 + Improved test coverage of example code
251 + Removal of PGE rules: <null> <fail> <sp> <lt> <gt> <dot>
252 + Removal of PGE methods: .text .item .result_object
253 + Deprecation of most dynops
255 + Beginnings of OpenGL::Math library; OpenGL bindings and library marked experimental
256 + Localizing and consting fixes
257 + Many memory and thread-related leaks plugged
261 + Optimized parts of the IO system
262 + Fixed inheritance hierarchy of FileHandle and Socket PMC types
263 + Fixed leaks involving subroutines and Parrot_Context
264 + Cleaned up and refactored GC internals, including fixes and optimizations
265 + Optimized PMC class manipulations to use type numbers instead of string names
266 + Fixed problems involving hashval calculations in strings
267 + Removed unnecessary MULTI dispatches in built-in PMCs
268 + Fixed memory leaks involving PMCs that were not properly destroyed
269 + Fixed creation of PMCProxy PMCs in correct namespaces
270 + Added preliminary Pipe support
271 + Fixed cloning of Object PMCs
272 + Added root_new opcode
273 + Added initial versions of Packfile PMCs with read/write capabilities
275 + Fixed several memory leaks in IMCC
276 + Updated PCT to use root_new opcode
277 + Added support for keyword "self" in NQP
279 + Improved and expanded /docs/book
280 + Updated project documentation
281 + Defined 'experimental' status and procedures in DEPRECATED.pod
283 + Cleaned code and improved code-level documentation
284 + Various bugfixes, code cleanups, and coding standard fixes
285 + Added an experimental compiler library to help use PIR libraries from HLLs
286 + Updated OpenGL library and examples to support experimental HLL import
290 + Fixes for pir classes inheriting from core pmcs.
291 + Cleaned up headers and reorganized some sources into subsystem directories.
292 + Clean up PMCs so libparrot.so exports far fewer vtable/method symbols.
293 + Clean up the GC API.
294 + Several unicode identifier improvements in IMCC.
296 + Protoobject stringification is gone.
298 + Rewrite several core documents.
299 + Many reworks, improvements & additions to the Parrot Book.
300 + Installation PDD is launched out of draft.
302 + Fixes for running the language shell generator outside the parrot tree.
303 + Several fixes for developing and building HLLs from an installed parrot.
304 + Configure.pl now has a --no-line-directives option to ease source level debugging.
306 + Portability updates for macports, netbsd, mingw32, hpux.
307 + Several (build time, runtime) performance improvements.
308 + Lots of updates to examples and tests.
309 + Various bugfixes, code cleanups, and coding standard fixes.
313 + Added op: load_language, find_caller_lex
314 + Socket IO are back as PMC
315 + Refactor some PMC: Hash, ManagedStruct
319 - Allow \x, \c, and \o in enumerated character classes (incl ranges)
320 - Add initial greedy-only version of ** <exp> quantifier
322 - Add HLL source line bytecode annotations
323 - Add another dumper format to assist syntax highlighters
324 - Revise mk_language_shell.pl to updated create_language.pl
326 + Removed ops: gcd, exec, classname, need_finalize, runinterp, substr_r
327 + Removed dynamic op: mul
328 + Removed .HLL_map directive; use interp's .hll_map() instead
329 + Removed PMCs: slice, bound_nci, ref
330 + Removed Configure.pl option: --pmc
331 + Removed PMC union struct
334 - Reorganization and many improvements & additions
336 + Add a parrot-fuzzer
338 + Improve Debian/Ubuntu package
339 + various bugfixes, code cleanups, and coding standard fixes
344 + New user documentation for exceptions.
345 + Updates to Chapters 4 & 5 of the Parrot book.
346 + Improved and expanded generated HTML documentation, as the input for
347 http://docs.parrot.org.
348 + Added Compiled HTML Help (.chm) version of documentation.
349 + Cleanups and fixes.
352 - left the nest and is now at http://pynie.googlecode.com/
354 - left the nest and is now at http://github.com/cardinal
356 - left the nest and is now at http://paraplegic.googlecode.com/
357 + ABC, Squaak, and Befunge moved to examples/.
358 + All remaining languages moved to https://svn.parrot.org/languages/
360 + Support for language builds from an installed Parrot.
361 + Expanded language shell generator for new languages.
362 + 'parrotbug' utility repurposed for the Trac interface.
364 + Removed deprecated Tqueue and Closure PMCs.
365 + String, Key, NCI, LexPad, Iterator, Sub, Continuation, RetContinuation,
366 ExceptionHandler, ParrotLibrary, ParrotInterpreter, ParrotThread,
367 ParrotRunningThread, Rational, FixedPMCArray, ResizablePMCArray, and
368 GDBMHash PMCs now use declared attributes (ATTR), in place of the
374 + Support for portable 'Inf', 'NaN' and -0.0
375 + pbc_disassemble prints constants in constants table
376 + New experimental BigNum implementation
377 + Pair is now a dynamic loadable PMC
378 + Various function name sanification
379 + New implementation of Strings component
380 + Replace various PMC value union access code by VTABLE method invocations
381 + Replace various PMC value unions by ATTRibutes
382 + Removed SArray PMC. Use FixedPMCArray instead.
385 - updates to Chapter 2 (getting started)
386 - updates to Chapter 3 (PIR basics)
387 - updates to Chapter 4 (PIR subroutines)
388 - updates to Chapter 10 (HLLs)
389 - updates to Chapter 12 (opcodes)
390 + Function documentation
391 + Pod documentation style modernized; no longer Perl 5 style.
392 + PMC has an additional acronym: Poly Morphic Container
393 + The DOD (Dead Object Detection) acronym is no longer used;
394 use 'GC' to refer to the Garbage Collector component.
397 - :named flag can now take string registers as argument
398 - A single '=cut' directive is now ignored (without initial Pod directive)
399 - :vtable subs now have proper access to 'self' pseudo variable
401 + add new 'Pod' documentation parser
402 + Pipp (PHP implementation):
403 - Pipp is now at http://github.com/bschmalhofer/pipp
404 - support for 'print', 'dirname', 'implode', 'str_replace',
405 - various grammar fixes
407 + add 'quit', 'readline' builtins
408 + fix 'Boolean' type and 'print' builtin
410 - left the nest and is now at http://github.com/fperrad/lua/
412 - left the nest and is now at http://github.com/rakudo/rakudo/
413 - build instructions can be found at http://tinyurl.com/rakudo
415 - left the nest and is now at http://github.com/bschmalhofer/lazy-k.git
417 - left the nest and is now at http://github.com/bschmalhofer/unlambda/
419 - left the nest and is now at http://github.com/fperrad/wmlscript.git
420 + removed Zcode implementation
423 - ATTRs are now inherited automatically in subclassing PMCs
425 + Parrot_readbc, Parrot_loadbc renamed to Parrot_pbc_read, Parrot_pbc_load.
426 + .HLL_map directive in favour of 'hll_map' method on Parrot interpreter
427 + Data::Escape library
429 + pbc_disassemble options added
430 + pbc_dump renamed from pdump
432 + Parrot is now Copyright Parrot Foundation
433 + Parrot's SVN repository is now hosted at https://svn.parrot.org
434 + Various code cleanups, consting, 64-bit incompatibilities and other bug fixes
437 New in January 2009 release (0.9.0)
439 + Implemented bytecode annotations
440 + Role composition is now aware of multi-subs
441 + Unbuffered IO PMCs now autopromote when buffering is necessary
442 + Installation parrot binary and libparrot shared library now supported
443 + Class registry now respects HLLs
446 - removed keyed string indexing, e.g. $S0[1].
447 - removed slice syntax, e.g. $P0[1..2]
448 - removed .namespace <ident>/.endnamespace <ident> pair
449 - fixed 'new $P0, [classname]' syntax
451 - refactoring of various data structures
452 - various bug fixes and updates
453 - complete bytecode generation
454 - add '-x' commandline option to run compiled code
456 - add 'hll' and 'subid' attributes to PAST::Block
457 - refactor loop handling code to handle last/redo/next
458 - add :pasttype('stmts') and :pasttype('null')
459 - improve "scope not found" error message
460 - allow PAST::Val nodes to contain block references
462 - add "skipkey" option to PGE::OPTable
463 - allow spaces before modifiers in regexes
464 - add '(' ~ ')' goal matching syntax
465 - skip creating a class/grammar if it already exists
468 - improved error mesages in multi dispatch
469 - implemented clone method for all objects
470 - implemented MAIN sub
471 - Unicode versions of infix hyper operators
472 - refactored IO.readline
473 - basic support for Inf and NaN
474 - list and array slices with whatever star
476 - implemented last and redo
477 - pointy blocks as terms
478 - refactored variable and parameter passing
479 - improved assignment semantics
480 - improved parsing of type names and subs
481 - mostly implemented parametric roles
482 - separate types for blocks, subs and methods
483 - basic support for submethods
484 - implemented Junction autothreading of user code (not builtins yet)
485 - eval supports :lang attribute
486 - proto makes other subs in scope multis, including in role composition
488 - back to working state
491 - add support for predefined constant __CLASS__ and __METHOD__
492 - add initial support for static members
493 - add support for namespaced constants
494 - constants are now handled as package vars
495 - variables are now lexical variables
496 - add support for superglobals in functions
497 - Call the class __constructor when there is one
498 - added incomplete support for closures
499 - removed support for the alternative parsing strategies
500 - added support for 'elsif'
501 - added support for 'do-while'
503 - left the nest and is now at https://github.com/bschmalhofer/hq9plus/
505 - left the nest and is now at http://github.com/bschmalhofer/eclectus/
507 - left the nest and is now at http://github.com/bschmalhofer/m4/
509 - add a minimalist user back trace
511 - "does" and "morph" VTABLE interfaces are now overridable from PIR
514 - 'make smoke' now generates Smolder reports sent to
515 http://smolder.plusthree.com/app/public_projects/smoke_reports/8
516 + Improved const and null correctness for C function parameters
517 + Sped up STRING manipulation (append, chop), improving PGE about 30%
519 - Added sections about Classes, OO programming, and methods.
520 - Added information about Annotations, Exceptions, and Handlers
522 - Removed non-functional STM subsystem
527 + fixed lexical semantics
528 + added the 'capture_lex' opcode
529 + added automatic resume for nonfatal exceptions
530 + added multidispatch cache
531 + applied miscellaneous performance improvements, including startup time
532 + fixed several bugs and leaks found by Coverity Scan
533 + removed race conditions from parallel testing
536 - removed undocumented .param int <stringc> => <ident> syntax
537 - .line directive now only takes an integer argument
538 - new .file directive to specify the file name being compiled
540 - properly handles lexical generation and closure semantics
541 - uses :subid instead of name lookups to reference PAST::Block nodes
542 - added PAST::Control node type (exception handlers)
544 - add support for <?{{...}}> and <!{{...}}> assertions
545 - Match objects use Capture PMC instead of Capture_PIR
547 - add macro handling to PASM mode
548 - disable vanilla register allocation in PASM mode, but do allow optimization
549 - add tests and bug fixes
550 - first bits of bytecode generation. No sub calling/returning yet.
553 - fixed lexical handling and recursion
554 - refactored subtypes implementation
555 - support for quotes with multi-character delimiters
556 - implemented list slices (Positional role)
558 - reduction meta operators
559 - hyper meta operators
560 - cross meta operators
561 - more builtin functions
563 - basic support for protos
564 - iterator on filehandle objects
565 - basic support for exception handlers
568 - added complex & mathx libraries
569 - merged LuaClosure & LuaFunction PMC
571 - added support for a return value from user defined functions
572 - added incomplete implemention of 'require_once'
574 - parser fixes, parses spidermonkey's top level test/shell.js
576 + PARROT_API is now PARROT_EXPORT
578 - :lexid is now :subid
579 - .arg is now .set_arg
580 - .result is now .get_result
581 - .yield (in .begin/end_yield) is now .set_yield
582 - .return (in .begin/end_return) is now .set_return
583 - .namespace x / .endnamespace x syntax is removed
584 + Capture_PIR (runtime/parrot/library/Parrot/Capture_PIR.pir)
588 + added CPAN module Storable 2.12 as a configuration and build dependency
589 + removed the pseudo PIR opcode 'addr'
590 + added the 'box' opcode
591 + fixed 'pop_eh' handling in PIR libraries and examples
592 + removed usage of .return for tailcalls (use .tailcall instead)
593 + removed 'get_hash' and 'get_array' from Capture PMC and Capture_PIR
594 + improved debugger and HLL coordination
595 + allowed MMD primitive autoboxing
596 + fixed all known memory leaks in PIR "Hello, world!"
597 + NCI signatures now JITted on x86-32 platforms (Windows and Linux)
598 + made the .const directive take a quoted type name instead of a constant
599 + made IMCC more re-entrant
602 - refactored Junctions implementation
603 - added "fire and forget" tool to rebase/rebuild/test Parrot and Rakudo
604 - updated container/reference semantics
605 - added more builtin methods and functions
606 - improved support for multilevel namespaces
607 - added support for .Str, .succ, .pred in user-defined classes
608 - implemented pointy blocks on if/loops
609 - increased STD.pm convergence
611 - improved MMD candidate sorting
612 - improved integration of Num and Int
613 - implemented increment on protoobjects
614 - added initial support for MAIN subs
615 - added .PARROT method
617 - added some predefined constants
618 - added implemention of the function basename()
620 - Added initial support for the classes Proc, Continuation, Queue, Dir, File, and FileStat
621 - fixed various minor bugs
622 - fixed broken Regexes
625 - added '.isa' method to PCT::Node
626 - cleaned up 'immediate block' handling
627 - allowed arguments to immediate blocks in loops/conditionals
628 - metaclass objects can now 'add_method'
630 - integrated macro processing in PIRC's lexer
631 - integrated heredoc lexer in PIRC executable
632 - added preprocess and heredoc-preprocess commandline options
633 - integrated the PASM grammar into PIRC
634 - added a register allocator to optimize the built-in vanilla allocator
635 - code cleanups and documentation
636 - added 'make test' target
638 - updated to work with new namespace/classname syntax
640 + PARROT_API will become PARROT_EXPORT
641 + :lexid will become :subid
644 - updates and additions to the Parrot book (see docs/book/)
646 - minor fixes to Parrot's base OpenGL bindings
647 - converted OpenGL PIR examples to Perl 6 (two complete, one WIP)
648 - added simplified OpenGL PIR example for NCI JIT testing
650 - further improvements to parallel tests
651 - tests no longer leave filesystem breadcrumbs
652 - more thorough testing of Parrot::Test itself
656 + float precision expanded to 15 significant digits from 6
657 + large integers autopromoted in PIR so as not to lose precision
658 + improved precision of complex square root
659 + exception handlers can register types of exceptions they catch
662 - implemented gather, take, and yield builtins
663 - Range, Time, Math, GC, Kernel classes
665 - added a new committer
666 + Markdown : new lightweight markup language
667 - start implementation with PCT/NQP
669 - Moved to its own repository: http://code.google.com/p/partcl/
671 - split() works with regexes
672 - implemented Str.comb
673 - ord() and chr() builtins
674 - improved parsing of literal numbers
675 - support for hyphens and dashes in identifiers
676 - next() on for-loops
677 - fixed floating point constant precision
678 - improved namespace handling, closer to STD.pm model
679 - support for exporting symbols
682 - now generates classes in nested namespaces instead of :: names
683 - supports class creation in caller's HLL namespace
685 - now using true nested namespaces instead of :: names
686 - cleaned up HLLCompiler interactive prompts and readline mode
687 - updated to use typed exception handler registration
688 - added initial support for loop control exceptions
690 - fixed Heredoc preprocessor
691 - cleaned up Macro preprocessor
692 - many code clean-ups, warning fixes and consting
693 - updated Makefile for easier compilation
695 - Added .tailcall syntax to replace .return in tailcall context
698 - an old style line numbered Basic interpreter able to use parrot objects
699 - example connecting to mysql via nci
700 - example using classes to write and run an embedded Basic program
703 - Added chapters for PCT, PMCs, and Opcodes/Runcores
704 - Expanded and improved formatting in various chapters
705 - Renumbered chapters
710 + add -I and -L command line options
711 + support for null strings in NCI calls
712 + preliminary support for resumable exceptions
713 + add '.hll_map' method for dynamic HLL type mapping
714 + more parrot_debugger fixes
715 + remove obsolete '.past' extension
718 - now over 3300 passing spectests
719 - precompiled modules
720 - precompiled scripts (--target=pir can now be executed standalone)
721 - Support for @*INC and %*INC varialbes
722 - additional builtin methods and subs
723 - added 'fail' function, warnings on use of undefined values
725 - qq, qw, q quoting forms
726 - run tests in parallel
730 - 'require' and precompiled modules
732 - all Array tests pass
734 - default arguments to functions
738 - add :loadinit attribute for PAST::Block
740 - major refactoring to allow all PIR keywords as identifiers
741 - links to libparrot now, so all Parrot ops are recognized as such
742 - implemented .loadlib, .HLL_map, .HLL
744 + add Xlib and Mysql modules and test programs to NCI examples
745 + many updates and cleanups to PDD documents
749 + PDD27: add multisub lookup
751 + new concurrency implementation (see PDD25)
752 + Exception PMC now captures a return continuation
753 + improved PMC encapsulation (Iterator, Key, Pair)
757 - parsing improvements
758 - minor additions to class builtins
759 - add support for block parameters to functions
761 - various language fixes
762 - refactor all libraries (namespace, method registration)
763 - add a OpenGL binding (still incomplete)
764 - lost user back trace (see ppd25 & pushaction)
766 - add support for while- and for-loops
767 - add support for increment and decrement
768 - designate PHP 5.3 as the reference implementation
769 - improve support for string literals
771 - removed due to bit rot
773 - now over 2200 passing spectests
774 - updated the Rakudo roadmap
775 - Perl 6 multi dispatch
776 - dispatch with slurpies
777 - class attributes ("my $.x")
779 - OO and metaclass improvements (.WHAT, .WHICH, .WHENCE)
780 - additional builtin methods and subs
781 - improved make test targets and harness
783 - implement [lreverse], [lsort -command]
784 - allow [incr] to autovivify
785 - update tclsh spec target to 8.5.3
786 - fix bug in TclDict PMC, allowing ~200 more [dict] spec tests to pass
787 - update 'make spectest' fudging, using TODO instead of SKIP if possible
790 - :scope('register') for PAST::Var nodes
791 - allow invocant specification in attribute scope PAST::Var nodes
792 - correct ordering of sub generation from POST
793 - add 'loadinit' attribute to PAST::Block for block initialization
795 - PIR registers now use the vanilla register allocator
796 - all PASM output now uses PASM registers
797 - all .locals and $registers are mapped
798 - clean-up of grammar, back-end and documentation
799 - implemented constant folding
800 - implemented instruction selection
802 + tests now clean up after themselves
803 + improved parallel test support
805 + Darwin problems fixed
807 + parrot_debugger renamed from pdb, numerous tweaks
810 + :vtable implies self in PIR
811 + modest core speed improvements
812 + Cygwin support improved
813 + "say" now an opcode (was dispatched to a method; see Deprecations)
815 + ".pragma n_operators" is deprecated
816 + old PASM register syntax (without "$") is deprecated
817 + bare (unquoted) method names are deprecated
818 + "#line" will be replaced with ".line"
819 + ".HLL_map" syntax will change
820 + ".loadlib" is now separate from ".HLL"
821 + mmdvtregister and mmdvtablefind opcodes are deprecated
822 + removed getfd, getclass opcodes
823 + removed IMCC syntax that treated some methods as builtins
824 + removed numeric get_attr and set_attr vtable entries
828 + removed a lot of old information from the FAQ
829 + improved function level documentation
831 + removed the configuration item 'has_gnu_m4'
832 + refactored ICU-detection
835 - improved the Smalltalk implementation
837 - renamed Plumhead to Pipp
838 - support for a lot of builtin functions.
839 - Pipp now uses PHP specific data types.
840 - converted from PCT with TGE to PCT with NQP actions
841 - improvements in the PCT variant by using optok parsing
842 - start of object support
844 - simple assignments work
846 - added a PCT-based implementation of JSON parsing
848 - improved handling of symbols
849 - added support for block handling
850 - added support for globals
854 - updated Range implementation
856 - added generic type declarations (::T)
857 - added runtime mixing of roles with 'does' and 'but'
858 - fixed handling of implicit lexicals ($_, $!, and $/)
859 - fixed implicit method calls on $_
860 - improved complex math builtins, added Complex
861 - moved many builtins to class Any
862 - declaration of lists of variables now work
863 - improved test infrastructure
864 - 910 additional passing spec tests since last release
865 - more convergence with STD.pm grammar
866 - added named 0-ary parsing and ops
869 - allowed subroutine and method names to be a PAST tree that produces the name
870 - Improved lexical handling
872 + pbc_disassemble renamed from disassemble
874 + allowed .macro_const in PIR
875 + added the flag :lexid(...) for subroutines
876 + made multiple dispatch work for sub types
877 + fixed garbage collection bug related to the metadata attached to a PMC_EXT structure
878 + added a warning when using deprecated opcodes
879 + simplified the stacks implementation
881 + improved closure and lexical support
882 + improved IMCC register allocator
883 + added cache for all runtime-constant strings, reducing memory usage
885 + improved OpenGL/GLU/GLUT bindings
886 + added a standard profile for Perl::Critic coding standard testing
887 + added support for smoke testing with Smolder
888 + enabled use of Test::Harness 3.0 if available, but don't require it for 'make test'
889 + added the executable 'parrot_config' to query Parrot configuration
893 + updated pdd09_gc.pod
896 - dramatically improved parsing speed
897 - added support for defining and instantiating classes
898 - started fleshing out the builtin class hierarchy
899 - added support for hashes and arrays
900 + Chitchat: added the start of a smalltalk compiler
901 + Pheme: updated to match PGE changes
902 + Pynie: return statement, other minor updates
904 - added working list and hash contexts
905 - added 'return' statements
906 - added => pair constructor
907 - added ?? !! ternary
908 - added Range, range operators, Complex
909 - added common List, Hash methods
910 - refactored base classes
911 - added Mutable, Perl6Scalar classes
912 - added type-checking, is readonly/rw/copy for parameters
913 - added make localtest, docs/spectest-progress.csv
915 + Squaak: implement return statement
916 + Tcl: updated control flow exceptions to use new builtin types
918 + All tools converted to P6object metamodel
920 - <?foo> is now a zero-width match
921 - reduced backtracking to improve parsing speed
923 - added "return" PAST.op node type for subroutine returns
924 - added "keyed_int" scoping to PAST::Var
925 - fixed calls to closures
926 - automatically transcode 7-bit unicode to ascii for faster processing
927 + NQP: added "return" statement, ?? !! ternary operator
929 + expanded step gen::opengl
931 + updated function and macro names to match pdd09_gc.pod
933 + add ".namespace []" as alternative to ".namespace"
934 + "make codetest" target runs standard coding tests
936 + added P6object class for Perl 6 interfaces to objects in Parrot
937 + ported OpenGL/GLU/GLUT bindings to Win32, BSD, and more Mac OS X variants
938 + generate OpenGL/GLU/GLUT bindings by parsing system headers
939 + new OpenGL example shapes.pir, covering basic OpenGL 1.1 / GLUT 3 APIs
940 + new float4.pir structure-packing benchmark
941 + reduced memory use for variables
942 + improved constant string caching
943 + made code g++ and gcc (with optimizations) safe
944 + the usual collection of bugfixes and optimizations
948 + updated and launched pdd28_strings.pod
949 + updated pdd19_pir.pod
951 + added implementation of Rational PMC.
952 + simplified ops control flow syntax
953 + enabled backtrace on non-glibc platforms too
954 + improved some PIR error reporting
955 + removed user stack opcodes
956 (save, restore, lookback, entrytype, depth, rotate_up)
957 (NOTE: This was scheduled to occur after 0.7.0, moved up to this release)
958 + removed register stack, saveall, and restoreall opcodes
959 + removed various deprecated features and unused code
962 + C99: grammar updated
963 + Cardinal: resurrected, method calls and do blocks work now
964 + Eclectus: use NQP as PAST generating code
966 - added big number library
967 - updated to match PGE changes
968 - added a bytecode disassembler & a Lua 5.1 VM bytecode translator
969 + Pheme: updated to match PGE/PCT changes
971 - use NQP as PAST generating code
972 - use riaxpander for macro expansion
975 - conditional and loop statement modifiers
976 - lots of class, object, role, and method improvements
977 - Str increment and decrement
978 - improved spectest reporting
979 - type checking on assignment
980 - regexes and grammars
984 + Squaak: added to repository
987 + PGE: updated to match Synopsis 5, deprecated features removed
989 - improve handling of register types, conversion between registers
990 - improved error diagnostics
991 - add 'arity' to for loops
993 + added step auto::opengl
994 + added step gen::opengl
995 + added step gen::call_list
997 + still more optimizations and performance improvements, especially in GC
998 + new libraries: OpenGL/GLU/GLUT bindings (small subset working)
999 + new dump_pbc.pl utility: PBC disassembly/source code weaver
1000 + improved C++ compiler support
1001 + optimized builds work again
1006 + drafted pdd29_compiler_tools.pod
1007 + updated pdd28_character_sets.pod draft
1008 + updated pdd19_pir.pod draft
1010 + c99: added independent C pre-processor
1011 + HQ9+: reimplemented with PCT
1013 . reimplementation with PCT, using PAST and POST
1014 . behavior aligned wih 5.1.3
1016 . implemented basic I/O, including '$*IN', '$*OUT', '$*ERR', 'prefix:='
1017 . implemented simple typing and runtime type checking
1018 . added basic multi-method dispatch
1019 . expanded named argument handling, including Pair and colonpairs
1020 . added 'Whatever' and 'Capture' classes
1021 . implemented 'handles' trait verb
1022 . added 'loop' statement
1023 . implemented 'given', 'when', 'for', 'while', 'until' statement modifiers
1024 . implemented Hash methods '.keys' and '.values'
1025 . fixed bug to get '.WHAT' working correctly
1026 . initial implementation of 'eval'
1029 . created a bootstrapped build, see 'make boot'
1030 . added 'infix:<', 'infix:<=', 'infix:>', 'infix:>=' relational operators
1031 . added 'postfix:++', 'postfix:--' operators
1033 . added methods specifying default behaviors in PAST, reducing repeated code
1034 . improved symbol table lookup
1036 . removed deprecated code including: P6Regex, P6Grammar, PAST-pm
1038 + notable speedups during compilation and execution of parrot and HLLs
1039 + pdb (the parrot debugger) can now catch parrot exceptions
1040 + better detection of glibc and gettext during configuration
1041 + various bugfixes, code cleanups, deprecations, and coding standard fixes
1046 + launched pdd18_security.pod
1047 + updated pdd17_pmc.pod
1048 + launching draft of pdd28_character_sets.pod
1050 + cleanup of IMCC documentation
1052 + add step auto::gettext
1053 + add step auto::crypto
1057 . Phase out P6Regex in favor of Perl6Regex
1059 '.local Array my_arr' is illegal now
1061 + C99: reimplementation with PCT
1064 . add support for functions with params
1065 . add math functions
1068 . first cut at smart matching
1069 . indirect method calls
1071 . added methods 'grep' and 'first'
1072 . implement auto{increment,decrement}
1073 . initial implementation of 'perl6doc'
1076 . add base64 library
1077 + Cardinal: basic support for functions with parameters
1078 + Pheme: various updates
1079 + Ecmascript: various updates
1080 + Tcl: now targeting tcl 8.5.1, no more expected failures in test suite.
1081 (No, this doesn't mean everything's implemented. =-)
1082 + Eclectus: various updates
1083 + WMLScript: various updates
1086 + Add library YAML::Dumper
1087 + Add the MD2, MD4, MD5, RIPEMD160, SHA & SHA1 PMC, as a wrapper
1090 + various bugfixes, code cleanups and coding standard fixes
1092 + remove external Perl 5 modules from the Parrot distribution
1096 + PDD09 (garbage collection) - approved
1097 + PDD28 (character sets) - draft started
1098 + added function documentation to some core functions
1099 + PCT beginners guide, optable guide and PAST nodes guide, bug fixes
1101 + IMCC: plugged various memory leaks and other cleanups
1103 . add "attribute" as a scope variant to PAST::Var nodes
1104 . add 'shift' and 'pop' methods to PAST:: nodes
1105 + NQP: add '=:=' op, tests for scalar and list contextualizers, \x escapes
1107 + APL: reimplementation with PCT
1108 + Cardinal (Ruby): reimplemention with PCT
1109 + Ecmascript: reimplementation with PCT
1110 + lolcode: improved expression parsing, ifthen, IT, YARN
1112 . aligned with Lua official release 5.1.3.
1113 . added initial PCT-based implementation.
1114 + Punie (Perl 1): refactor to use standard PCT-based filenames
1115 + Pynie (Python): add functions
1117 . rebranded, formerly known as 'perl6'
1118 . passes many more official Perl 6 Specification tests
1119 . added 'perl6doc' utility
1120 . oo including meta?classes, objects, methods, attributes, role composition
1121 . match variables, while/until statements, traits
1122 . many new methods for Str, List, Hash, Junction
1125 + PCCINVOKE syntax for named arguments using []; use () instead.
1126 + see DEPRECATED.pod for details
1128 + pbc_to_exe refactored for code reduction, portability, and maintainability
1130 + #line directives added to generated JIT files, improving debugging
1131 + consting, attribute marking, refactoring, warnings cleanup
1135 + PDD27 (multiple dispatch) - debut of new design
1136 + Numerous small updates to glossary.pod, etc
1138 + NQP: optional, named, and named/required parameters
1140 + PAST: "defined-or"
1142 + New mk_language_shell.pl script creates language stubs
1145 + Eclectus: start with support for local variables and procedures,
1146 use SXML as intermediate representation
1147 + Perl 6: list builtins, compiler directives, command-line options, etc.
1148 + "make perl6" now builds a Perl 6 executable
1149 + punie: more builtins, control structures, code refactoring
1150 + pynie: builtin stubs, more tests
1152 + New "pbc_to_exe" utility turns bytecode to executables
1153 + New set_outer method for subs
1154 + Further configuration refactoring for testability
1155 + All functions now completely headerized
1156 + Concurrency: interpreter schedulers
1158 + DYNSELF (changes to SELF; SELF to STATICSELF)
1159 + METHOD (replaced by renaming PCCMETHOD)
1160 + pmcinfo op (superseded by 'inspect')
1161 + get_attr, set_attr, and 8 other vtable methods
1162 + See DEPRECATED.pod for details
1165 + Minor speed enhancements with UTF-8 string handling
1167 + consting, attribute marking, warnings cleanup, memory leaks plugged ...
1171 + PDD19 (PIR) - reflect state on the ground; incorporate old IMCC docs
1172 + PDD25 (Concurrency) - launch out of draft
1173 + Improve documentation of deprecated parrot features.
1175 + PCT: Parrot Compiler Toolkit redesigned and updated
1176 + NQP: major updates, including support for namespaces,
1177 module/class declarations, methods
1178 + IMCC: remove .sym as alias for .local. Remove .pcc_
1179 prefix for calling directives (.pcc_begin became .begin_call).
1180 + PIRC: creates an AST during the parse.
1181 + PGE: more updates to match S05 syntax.
1183 + perl6: re-implemented using PCT and NQP, new object subsystem
1184 + abc: re-implemented using PCT and NQP
1185 + eclectus: initial implementation
1186 + plumhead: add PCT variant
1187 + punie: re-implemented using PCT and NQP, extended to handle subroutines
1188 Happy 20th Birthday, Perl!
1189 + pynie: re-implemented using PCT and NQP
1190 + PIR: start conversion to NQP (under construction)
1192 + new opcodes: 'die', 'addhandler', 'copy'
1193 + Initial implementation of Concurrency PDD
1194 + Add 'arity' method to Sub and NCI PMCs
1197 + consting, attribute marking, warnings cleanup, memory leaks, GC...
1198 + dead code removal (includes some defunct languages)
1202 + PDD15 (OO) branch merged with trunk; this release contains a working,
1203 tested implementation of the latest OO model
1204 + Added pop_eh/push_eh_p/count_eh opcodes
1205 + Add --runcore command line option
1206 + Add gcdebug runcore to help track down GC bugs
1207 + minor improvements to IA-32 JIT
1209 + PDD19 (PIR): updates to macros, .pcc* directives
1210 + PDD25 (Concurrency): updated
1211 + PDD26 (AST): draft approved
1212 + PDD23 (Exceptions): draft approved
1213 + Copyright cleanups
1214 - Languages/Compilers
1215 + languages/APL: minor updates, PDD15 conformance
1216 + languages/dotnet: minor updates
1217 + languages/lua: minor updates, PDD15 conformance
1218 + languages/lisp: minor updates
1219 + languages/perl6: minor updates, PDD15 conformance
1220 + languages/plumhead: minor updates
1221 + languages/punie: minor updates, PDD15 conformance
1222 + languages/nqp: minor updates
1223 + languages/scheme: many updates, PDD15 conformance, improved tests, use
1224 PMCs instead of primitive registers to represent values
1225 + languages/tcl: bugfixes, PDD15 conformance
1226 + languages/WMLScript: minor updates
1227 + compilers/pirc: updates from PDD19, PDD06
1228 + compilers/pct: minor updates, PDD15 conformance
1229 + compilers/pge: PDD15 conformance
1230 + compilers/tge: PDD15 conformance
1232 + Improve test coverage
1233 + Improve reporting when a step fails; allow abort on failure
1235 + More coding standard conformance, tests, cleanup, speedups,
1237 + Bug cleanup, esp. GC bugs
1238 + Eliminate .imc extension (use .pir)
1239 + Simplify some core config steps to not allow interactive prompting
1245 + Bug fixes (including Coverity IDs 20, 22, 30, 119-122, 124-126, 129-131)
1246 Also various GC, memory, and segfault issues
1247 + Fix & reenable CGP core
1248 + Parrot's -r flag now works again (compile to and execute bytecode)
1249 + Updates to pmc2c & PIR syntaxes
1251 + Minor performance improvements, especially in PGE
1253 + PDD02 "Vtables" - superceded by PDD17
1254 + PDD06 "PASM" - minor updates
1255 + PDD17 "PMC" - add VTABLE syntax, update core PMC struct, restore UnionVal
1256 + PDD19 "PIR" - early review started
1257 + PDD21 "Namespaces" - cleanup
1258 + PDD24 "Events" - draft approved
1259 + PDD25 "Concurrency" - minor updates
1260 + PDD26 "AST" - draft version begun
1261 + PIR tutorials updated
1262 - Languages/Compilers
1263 + Make scheme work with the current calling conventions, other major work.
1264 + Updates to m4, lua, compilers/pirc, languages/PIR, dotnet, tcl
1266 + make -j functional again
1267 + Code cleanup (refactoring, optimizations)
1271 + Performed code review on every PMC
1272 + Modified PMC code generation to use Storable, reducing compile times
1273 + Added a makefile target to generate test coverage data of C sources
1275 + NQP: added lists, for loops, operators, comparison and multiplicative operators
1276 + Announced Kea-CL, Kea Common Lisp, an ANSI Common Lisp implementation
1277 The repository is available at https://rgrjr.dyndns.org/svn/kea-cl/trunk/
1279 + PDD17 "PMCs" - draft approved, the design is complete
1280 + Added more PIR tutorials, see examples/tutorial/00_README.pod
1282 + Many bugfixes, enhancements, documentation, and coding standard updates
1283 + Deprecated PMC constants and other crufty syntax, see DEPRECATED.pod
1284 + Improved icc compiler compatibility for error line reporting
1288 + Lots of code review, many bugs fixed
1289 + Many more code cleanups and compiler warning levels
1290 + Started a new jit engine for 64-bit processors
1291 + Refactored configure process, with tests and new diagnostic options
1292 + Added new CodeString PMC for dynamic generation of PIR code
1293 + More pdd15 support for object metamodel.
1295 + Added NQP ("Not Quite Perl"), a very lightweight Perl 6-like language
1296 + Significant improvements and refactors to PCT (Parrot Compiler Toolkit)
1297 + perl6 passes more spec tests
1298 + Lua works now with a PGE/TGE/PAST-pm based compiler, lives in one pbc,
1299 and the interpreter has same behavior as original.
1301 + Added a committers' HOWTO
1302 + More PIR tutorial examples
1306 - Now, with Seat Belts!
1307 + added makefile targets for Sun lint, BSD lint, and splint
1308 + corrected many errors picked up by these tools
1309 + decorated source code with compiler hints, assertions, and attribute macros
1310 + automated creation of function declarations to prevent common errors
1311 + increased compiler warnings levels
1312 + converted more exceptions to a recoverable form
1314 + updated Lisp, Lua, Perl 6, tcl, regex, Scheme ("Pheme")
1315 + Perl 6 now fetches selected tests from pugs, and even passes some
1316 + PGE modified to handle {*} action subs for top-down and bottom-up parsers,
1317 and to allow grammar subclassing
1318 + HLLCompiler now has better exception, eval, and exit support
1319 + Introduced PCT, a refactor of HLLCompiler and PAST-pm
1321 + PDD15 "Objects" - details added to 'new' and 'getattribute' opcodes
1322 + PDD17 "PMCs" - notes added on instantiation and dynamic extention in PIR
1324 + added Parrot-related text from "Perl 6 and Parrot Essentials" book,
1325 tutorial examples from "Learning PIR" talk, and PDD15 metamodel diagrams
1327 + reduced memory footprint when using named registers
1328 + implemented overridding of vtable methods by PDD15 classes
1329 + improved PDD15 support for 'new', 'instantiate', and others
1330 + added makefile targets to ease core and HLL makefile regeneration
1331 + updated parrot dubugger, "pdb", to allow loading of commands from file
1333 + many bugfixes, enhancements, documentation, and coding standard updates
1337 + Updated Lisp, Lua, PHP ("Plumhead"), Python ("Pynie"), ABC,
1338 WMLScript, and Tcl ("ParTcl").
1339 + Perl 6 passes all of the sanity tests.
1340 + PGE supports latest Perl 6 grammar syntax. Perl 6, Python
1341 ("Pynie"), and ABC parsers updated to match.
1342 + Updated PHP ("Plumhead") to Antlr 3.0.
1343 + Lua added the beginnings of a PGE/TGE based compiler (not yet
1344 replacing the Perl/Yapp compiler).
1345 + Lisp updated for current features, added a test suite.
1346 - Core Implementation:
1347 + Filled in features and backward compatibility for PDD 15 objects.
1348 New object metamodel passes 85% of old test suite.
1349 + GCC API symbols are visible externally only when explicitly exported.
1350 + Added generated GCC compiler attributes to increase warnings, and
1351 cleaned up resulting warnings.
1352 + Code cleanup efforts and fixed memory leaks by the cage cleaners,
1353 resulting in notable speed increases.
1355 + Updated Parrot distribution to Artistic License 2.0, from dual
1356 Artistic 1/GPL license.
1357 + SDL examples brought up-to-date with current features.
1361 + even more refactorings and improvements in configuration system
1362 + improved tests and documentation for configuration system
1364 + Updated abc, PHP ("Plumhead"), Lua, Tcl
1367 + new PMC PDD draft partially completed
1369 + continued implementation of PDD 15 (Objects)
1370 + minor garbage collector and memory management improvements
1371 + several memory leaks resolved
1372 + extended support for compilers other than GCC
1373 + improved C++ compiler compatibility
1374 + enhanced support for Solaris, non-MSVC Win32, and other platforms
1379 + IMCC: added documentation for C-based Parrot Calling Conventions,
1380 refactorings and bug fixes
1381 + PGE: new perl6regex front end reflecting recent S05 syntax changes
1382 + PIRC: new prototype PIR parser
1384 + Updated Lua, PHP ("Plumhead"), BASIC, pynie
1385 + Lua implements environment
1387 + PDD15 "Objects" - details added, and draft approved
1389 + Added guidelines for PMC documentation
1391 + PDD15 implementation is largely complete, including role-based composition,
1392 introspection, and C3 method resolution order
1393 + new Exporter PMC for importing globals between namespaces
1394 + new string utilities for radix conversion
1395 + PCCINVOKE and Parrot_PCCINVOKE allow calling using the full Parrot Calling
1396 Conventions from PMCs and C code respectively
1398 + Refactorings and improvements in test coverage for 'Configure.pl'
1400 + many bugfixes, enhancements, and code cleanup
1401 + added example subversion config file
1402 + extended support for gcc, icc, and other compilers
1403 + extended support for Solaris and other platforms
1409 + IMCC: Parrot calling conventions now available between two C PMCs (PMINVOKE)
1410 + PGE: Match object improvements
1411 + smop: added Attribute and Class PMCs
1412 + HLLCompiler: improvements for interactive mode
1414 + extended binding to a list of variables
1416 + Updated Lua, PHP ("Plumhead"), Tcl ("ParTcl"), Ruby ("Cardinal")
1417 + Update PIR, regex, Zcode
1418 + New language: Pynie - a Python compiler for Parrot
1419 + Lua implements require and many other ops, improved regex support
1422 + PDD01 "Overview" - updated architecture and platform information
1423 + PDD15 "Objects" - details on roles, objects, and classes added
1424 + PDD22 "I/O" - added async ops and Status PMC details
1426 + Added guides for Metacommitter, Relase Manager, and Cage Cleaner roles
1428 + Object, Class, Role, and Attribute PMC implementation has begun
1429 + Perl 5 module "Parrot::Embed" now compiles and links on all platforms
1431 + Major improvements in test coverage for 'ops2c.pl'
1433 + New utility: Crow, a template processor
1434 + New library module: Config/JSON for reading/writing JSON files
1435 + many bugfixes, enhancements, and coding standard updates, code cleanup
1440 + IMCC: Parrot calling conventions now available in C PMCs, allowing
1441 named, optional, slurpy, and flat parameter passing
1442 + PGE: extended support for Perl 5 Regexes
1443 + smop: prototype object model implementation
1444 + hllcompiler: refactored to run a configurable set of compilation stages
1446 + redesigned assign/binding to support Perl 6 binding semantics
1448 + Updated Lua, PHP ("Plumhead"), Tcl ("ParTcl"), perl6, perl5
1449 + New language: PIR - a PGE-based implementation of Parrot PIR
1450 + perl6 now supports binding (':=') and 'join'
1451 + lua generates tail calls, and supports its own regex flavor (PGE-based)
1452 + Pheme still works, huzzah!
1454 + PDD21 "Objects" - rewritten
1455 + PDD22 "I/O" - updated and 'TODO' tests added
1457 + Interface stability classification standards approved
1458 + Roles and Responsibilities documented approved
1459 + Official 'drafts' directory created (was 'clip')
1461 + More NameSpace and OS PMC methods implemented
1462 + Parrot executable fullname and basename now available in PIR/PASM code
1463 + new 'chomp' library function
1465 + Major improvements in test coverage for 'ops2pm.pl'
1467 + many bugfixes, enhancements, and coding standard updates
1468 + extended support for Sun Workshop Compilers
1469 + Parrot now builds on PocketPC platform
1474 + HLLCompiler: added tracing options, modified api
1475 + PGE & TGE bugfixes and updates
1477 + added global and lexical variable support
1478 + added looping constructs, arrays, hashes
1480 + Updated PHP ("Plumhead"), Tcl ("ParTcl"),
1481 forth, perl6, lua, abc, APL, WMLScript, punie
1482 + ParTcl is passing > 24.9% of Tcl cvs-latest test suite
1483 + perl6 now supports hashes, arrays, method calls, arity-based
1484 multisubs, quoted terms, ranges (non-lazy), try blocks, $!
1486 + PDD01 "Overview" - updated
1487 + PDD22 "I/O" - rewritten and approved
1489 + Converted Perl 5 Regex tests to PIR, with notable speedup
1490 + Added tests for opcodes, compilers, languages, and coding standards
1492 + Major improvements in test coverage for 'pmc2c.pl'
1494 + many bugfixes, enhancements, and coding standard updates
1495 + extended support for non-core platforms including Cygwin, Tru64
1499 - New languages: PHP ("Plumhead"), Forth
1500 - Updated languages: Ruby ("Cardinal"), Tcl, Lua
1501 - Remove old Python implementation from Parrot repository; the new Python
1502 language code is hosted at http://pirate.tangentcode.com
1504 + PGE updated with more expressions, latest changes to S05
1505 + new Perl 6 grammar compiler
1507 + Perl 5 module "Parrot::Embed" allows easy embedding of a Parrot
1508 runtime into a Perl 5 program
1510 + new :init pragma for subs that must run before the main function
1511 + new :vtable pragma to identify subs that override PMC vtable methods,
1512 eliminating the need for special subroutine names
1513 + PIR parser/compiler does not stop on first syntax error
1514 + Vanilla register allocator ("register alligator") greatly improves
1515 performance compiling large functions
1516 + Eliminated limit on number of PIR macros
1518 + hash lookups return null instead of None for missing keys
1520 + PDD13 "Bytecode files: format and manipulation" - new
1521 + PDD10 "Embedding" - new
1522 + PDD25 "Concurrency" - rewritten
1523 + PDD15 "Objects" - new section on redesign requirements
1524 + PDD07 "Coding standards" - significant updates and automated tests
1526 + Many many more new tests
1528 + autoconf compatible install options
1530 + Namespace refinements
1531 + Coroutine improvements
1532 + An impressive swarm of other bugfixes and enhancements
1536 - New languages: Ruby ("Cardinal"), Javascript ("ecmascript")
1537 - Updated languages: Tcl, dotnet, bc, Pheme, Punie, WMLScript
1538 - Updated compilers: PGE, TGE
1540 + ".loadlib" directive expresses dependencies
1541 + ".namespace" with no parameter goes to HLL root
1542 + lexer is reentrant (reentrant grammar in progress)
1543 - Namespace improvements:
1544 + new suite of opcodes to access namespaces and globals
1545 ("find_global" and "store_global" will be phased out)
1546 + namespace '' no longer means HLL root
1547 - Design document updates:
1548 namespaces (pdd23), basic types (pdd17), embedding
1549 - Updated tool requirements for developers:
1550 flex 2.5.33, bison 2.1, perl 5.6.1
1551 - New to-do list for people new to Parrot:
1553 - The usual plethora of bugfixes and enhancements
1557 - unicode subroutine names
1558 - hierarchical class names finished including MMD support
1559 - new dotnet CLI to PIR translator
1560 - improved TGE code and compiler
1561 - APL: vector handling
1562 - new STM branch in the svn repository
1563 - the usual bugfixes and enhancements
1567 - hierarchical class names
1570 - understands simple vector ops, strings
1571 - demonstrates use of Unicode in Parrot
1572 - pgc, a compiler for rules and operator precedence parsers
1573 - Major redesign and improvements for PGE
1574 - compilers understand named parameter options
1575 - :ratchet option implemented to support non-backtracking quantifiers
1576 - TGE (tree grammar engine) for tree transformations
1577 - tgc, tree grammar compiler
1579 - support for many operators, lexical scalars, regex matches
1580 - new pheme (Parrot scheme) compiler
1584 - namespaces partially implemented
1585 - rulec, Perl 6 rule compiler
1586 - PGE improvements including return values for closure
1587 - parts of a Perl 6 parser based on PGE
1588 - complex trigonometric methods
1589 - type of Sub PMC is now overridable by HLL
1591 - many bug fixes and improvements
1595 - improved PPC and x86 JIT support including JIT compilation
1596 of very simple PASM/PIR subroutines
1597 - preliminary libreadline support
1598 - better trace and debug features
1600 - META.yml to support proper indexing on CPAN
1601 - new opcode: hcf (in "my_ops" in dynamic op library)
1602 - new File pmc for file specific ops (is_dir, is_file, copy, rename...)
1603 - named arguments and parameters (both :named("") and => syntaxes)
1604 - ongoing config improvements
1605 - tons of bug fixes and other small improvements - too much to list all
1609 - Installation: 'make install' is using standard locations now
1610 (/usr/local is the default --prefix)
1611 - Produce static and shared libraries on some systems
1612 - Configure system rearragement
1613 - OS pmc started (mkdir,cd,cwd,rm,umask,stat)
1615 - Test files are now testable with 'prove'
1616 - Smoke (and smokej) outputs progress
1617 - PIR supports: I = A < B (>,<=,>=,==,!=)
1618 - Add support for octal number constants
1620 - almost finish [string]; start [file]
1621 - add build tool for generating inline'd tcl builtins from templates.
1622 - Jako updates: NCI, subroutines, global variables and constants all work.
1627 - New lexical handling and closure support including better
1628 introspection for caller and outer
1629 - PGE (Parrot Grammar Engine) provides now compilers for P6Rule,
1630 P6Grammar, P5Regexp, and Glob
1631 - ca. 1000 new tests including 800 for Perl5 regexp
1632 - Improved unicode charset and encoding support
1633 - Calling conventions for exception handlers
1634 - Punie (Perl 1) uses TGE (Tree Grammar Engine) to convert from
1635 PGE match objects to AST via two steps of tree transformation grammars
1636 - New languages: amber and lua
1637 - The usual code fixes, cleanup, and improvements, including an overhaul
1638 of the config and test framework
1642 - Variable sized register frames are finished. Each subroutine gets
1643 the amount of registers that it actually needs. No more spilling.
1644 - Vastly improved PGE (Parrot Grammar Engine) including shift-reduce,
1645 precedence-based expression parser and support for matching of
1646 bracketed text delimited by e.g. ()[]{}'"
1647 - uniccode character classification (is_upper ...)
1648 - support for heredoc syntax in assembler
1649 - improved examples, basic JSON support
1650 - debian packaging support
1651 - the usual improvements, bug fixes, and cleanup
1652 - test count exceeds 3000
1656 - New calling conventions implemented: see PDD03 for details
1657 - Merge multiple Parrot bytecode (PBC) files into a singe PBC file
1658 - 'make smoke' target going beta
1659 - bc now supports if statements, comparison ops, prefix inc/dec
1660 - ParTcl adds [lassign], [switch] (partially); [expr] converted to a compiler
1661 - Many exciting doc updates, tests, and bugfixes, too numerous to mention
1665 - Dynamic classes now compile on Windows (including ParTcl)
1666 - New Super PMC allows easy access to superclass methods
1667 - Implement C3 method resolution order (just like Perl 6 & Python)
1668 - ParTcl has new PIR-based parser and passes more Tcl tests
1669 - added character class support in Globs to PGE
1670 - added language implementations of unlambda, Lazy-k
1671 - many bugfixes, including GC and memory leaks
1672 - the new calling scheme continued to evolve in branches/leo-ctx5
1676 - new call scheme: docs/pdds/pdd03_calling_conventions.pod
1677 - partial implementation of the new calling conventions
1678 PASM only, don't mix PIR foo() call syntax with the new scheme
1679 - grammar and rule support in PGE - the Parrot Grammar Engine
1680 - TCL passes >10% of the tcl test suite
1681 - the usual bugfixes and improvements
1685 - better HLL support (short names for object attributes, and
1686 .HLL and n_operators pragmas)
1687 - string encoding and charset can now be set independently
1688 - experimental mmap IO layer for slurping files
1689 - distinct debug and trace flag settings
1690 - glob support in PGE
1691 - new character classification opcodes and interfaces
1695 - parrot repository is now under subversion
1696 - MMD (Multi Method Dispatch) enhanced
1697 - new unary and infix opcodes that return new result PMCs
1698 - dynamic scalar PMCs inherit now almost all from Parrot core PMCs
1699 - more unification of PMCs and ParrotObjects
1700 - tailcalls for functions and methods
1701 - PGE (Parrot Grammar Engine) reworked
1702 - Pugs creates Parrot code and Pugs is a registered compiler now
1703 - new languages/lisp
1704 - the usual bug fixes and improvements
1708 - New string handling code. Strings now have charset and encoding
1709 - Parts of a generation garbage collector
1710 - Better Python code, separated in dynclasses
1711 - Parrot Grammar Engine
1712 - Improved test coverage and documentation
1716 Parrot 0.1.1 is an intermediate release with tons of updates and fixes.
1717 - Python support: Parrot runs 4/7 of the pie-thon test suite
1718 - Better OS support: more platforms, compiler, OS functions
1719 - Improved PIR syntax for method calls and <op>= assignment
1720 - Dynamic loading reworked including a "make install" target
1721 - MMD - multi method dispatch for binary vtable methods
1722 - Library improvement and cleanup
1723 - BigInt, Complex, *Array, Slice, Enumerate, None PMC classes
1724 - IA64 and hppa JIT support
1725 - Tons of fixes, improvements, new tests, and documentation updates.
1726 A lot is unfinished and keeps changing. Nethertheless Parrot is stable
1727 and usable at the surface, while internals are moving.
1730 - "Ladies and gentlemen, I give you... objects!"
1731 - Huge documentation overhaul
1732 - More supported platforms, s. PLATFORMS
1733 - Basic thread support for pthread based architectures
1734 - Basic event handling for timers and signals including:
1735 - PASM callbacks for NCI (native C) functions.
1736 - Improved platform configuration
1737 - COW stacks now working, stacks code redone
1738 - Structure handling vastly improved
1739 - Random PMC and rand primitives
1740 - Better subroutine call syntax in PIR
1741 - Make PIR subroutines compliant with pdd03
1742 - Improved profiling (DOD, GC timings)
1743 - Hash code improvements, incl. random key order support
1744 - Experimental freeze/thaw code for some PMC types
1745 - IO improvements for buffered layer and Win32
1747 - String bitwise vtables
1749 - Support for JIT, where malloced memory isn't executable
1750 - Priority DOD scheme for objects that need timely destruction
1751 - Improved byte code loading (e.g. onLoad functions)
1752 - Language updates: forth, Perl 6/P6C, m4
1753 - Libraries: Getopt_Long, SDL, Dumper, Sort
1755 - Unified imcc and parrot test handling
1756 - Many new tests (make test reports 1386 tests)
1757 - Numerous bug fixes
1760 - The Big Move: Parrot source and build files rearranged into sub dirs
1761 - Build imcc as parrot
1762 - Objects more finished
1763 - Delegate vtable methods to byte code
1764 - Binary multi-method dispatching
1765 - Isa and does methods for PMCs
1766 - Call byte code from C
1767 - Start of extension interface
1768 - Experimental struct handling
1769 - Catch access to NULL PMCs
1770 - Experimental network socket interface code and opcodes
1771 - IO fixes and improvements
1772 - Dynamic opcode libraries
1773 - Fix-assigned opcode numbers
1774 - Argument flattening for function calls
1775 - More native call interface (NCI) signatures
1776 - Ncurses, postgres, and pcre interface libraries
1777 - Forth language is vastly improved
1778 - BSD and Win32 build improvements
1779 - Many new tests and fixes
1782 - This number intentionally left blank
1786 - Dynamic PMC registration
1787 - Trial exception system
1788 - Beginnings of object system
1791 - I/O system improvements
1793 - Documentation for basic PMC types
1794 - IMCC support of Parrot Calling Conventions
1795 - Runtime loading of chartypes (and other string improvements)
1796 - Conditional breakpoints
1797 - Dramatically accelerated sweeps for finalizable objects
1798 - Small PMCs (PMCs split into core and extensions)
1799 - Loadable bytecode packfiles
1801 - Sub variants that deal with the stack correctly
1802 - Switched runops core
1803 - Line numbers in warnings
1804 - Environment access
1805 - Many documentation cleanups
1806 - Conversion to CPS style!
1807 - BASIC debugger and many other wacky features
1808 - Filename, line number parsing support in IMCC
1813 - some more benchmarking
1815 - optimized math ops
1816 - intersegment branches
1817 - more complete use of PObjs
1818 - beefed up packfiles
1819 - sub/continuation/coroutine fixes
1820 - better NCI (native calling interface)
1821 - many imcc improvements
1826 - Native function calling interface (Dan)
1827 - Stack/list aggregate rewrite (Leo)
1828 - Scratchpads (Jonathan Sillito)
1829 - Preliminary DotGNU support -- type conversion ops (Gopal V + Leo)
1830 - Buffer/PMC unification (Leo)
1831 - stabs debugging support for JIT (Leo)
1832 - Jako overhaul (Gregor)
1833 - Optional Lea allocator (Leo)
1834 - Parrot sprintf (Brent)
1836 - PMC Properties (Dan)
1837 - Various JIT improvements (D. Grunblatt + Leo)
1838 - Extensible packfiles (Juergen)
1839 - Restructured PMC hierarchy (Leo)
1840 - Real Scheme (Juergen)
1844 - Several new grammars and a BNF -> perl5 and perl6 converter (Jeff)
1845 - Working Perl 6 REs (Sean)
1846 - Keyed Access (Tom Hughes et al)
1847 - New PMCs (Alberto et al)
1848 - Better Documentation
1850 - GC acceleration (Mike Lambert)
1851 - Lexical scope (Jonathan Sillito)
1857 - Perl 6 Grammar and Compiler (Sean)
1858 - Subroutines, coroutines, and continuations (Melvin)
1859 - GC improvements (Peter Gibbs, Mike Lambert)
1860 - Global variables (Melvin)
1861 - Intermediate bytecode compiler (Melvin, Angel)
1862 - And much, much more.
1866 - New assembler that support keyed types (Jeff)
1867 - New macro layer, allowing constants (Jeff)
1868 - New Configure.pl (Brent)
1869 - Changes to bytecode format, endian issues resolved (Melvin)
1870 - GC improvements and bug fixes (Peter Gibbs, Mike Lambert)
1871 - JIT compiler rewrite (Jason and Daniel)
1872 - Parrot assembler in Parrot (Daniel)
1873 - Parrot debugger (Daniel)
1874 - BASIC polished, Eliza.bas is new (Clint)
1875 - Cola compiler committed and working, with limited OOP (Melvin)
1876 - Keyed aggregates (Steve Fink)
1877 - Global ops (Melvin)
1878 - Compile-time speedup (Melvin)
1879 - Much documentation
1881 - Contributed tetris and lzw files
1882 - And many more, from the cast of thousands
1887 - Perl Scalar support in PMCs
1888 - Array and Hash types almost ready for prime-time
1889 - Internal support for keyed types
1890 - EMACS editing mode
1892 - New Language - BASIC
1893 - Regular expression compiler
1895 - Many, many bug fixes, enhancements, and speedups
1899 - Arena-based memory allocation system
1902 - "Predereferencing" mode - ./parrot -P - 22% speedup
1903 - JIT compiler - ./parrot -j
1904 - Parrot now builds warnings-clean on many platforms
1905 - Many more PMC methods implemented
1906 - Regular expression operations
1908 - Basic support for embedding Parrot in other programs
1910 - Added PDDs to distribution
1914 - Added an assembly optimizer
1915 - Improved string encoding/type support
1917 - Source reformatting
1918 - Major refactoring in packfile library
1919 - More Miniperl functionality
1920 - New PMC "clone" operator
1921 - Beginnings of key-based access to PMCs - arrays and hashes
1922 - MOPS comparisons in examples/mops/
1927 - Perl base scalar types implemented
1928 - A new minilanguage, Scheme
1929 - Much improved documentation
1930 - Register stacks pushing and popping
1931 - User stack pushing, popping and rotating
1932 - Jako updates: subroutines, more example programs, optimizations
1933 - test_prog renamed to 'parrot'
1935 - Added features to the assembler: @ for current location, and global
1937 - Build tweaks for VMS
1938 - Bytecode typing clean-ups
1939 - More platforms: OS X, HPUX, OS/2
1940 - The proliferation of runops cores reduced to one fast and one slow one
1941 - Opcode tracing, bounds checking, profiling
1942 - Vastly improved string support, with separation of encoding and
1945 - Multiple interpreter creation support - the beginnings of threading
1946 - Much better resource handling - the beginnings of GC
1950 - Parrot now works on all core platforms
1951 - A large number of tests, in the standard Perl testing framework
1952 - A new minilanguage (Jako) which compiles to Parrot assembly
1953 - Documentation about the assembly language (docs/parrot_assembly.pod)
1955 - Separate modules for assembly (Parrot::Assemble) and bytecode
1956 manipulation (Parrot::PackFile::*, packfile.c)
1957 - Assembler completely rewritten
1958 - Better operand-type guessing in the assembler
1959 - Assembler support for '\n' etc. in string constants
1960 - Code reformatted to match the coding standards
1961 - New ops for register-constant INTEGER comparisons
1962 - Macro expansion in the assembler
1963 - IVs and NVs renamed to more friendly INTVAL and NUMVAL
1964 - Hard-coded pack("") formats removed
1965 - Better handling of floating-point numbers in assembler
1966 - Moved floats to constant table (fixing many alignment issues)