5 + Tools to distribute on CPAN were removed
9 + Allow passing parameters to the dynamic linker ('dlopen' improved)
10 + loadlib opcode added
11 + Calling conventions are now much more consistent, and follows natural
12 semantics of handling arguments and return values
13 + Recursive make for src/dynpmc removed
14 + Datatype STRINGNULL for a single Null STRING added
15 + config_lib.pasm replaced with config_lib.pir
17 + Improved handling of new compilers
18 + Cygwin packages will be updated again with Parrot releases
19 + Fedora packages add desktop files
20 + gzip and bzip2 compressed tar files for releases
22 + tapir executable added; tapir is a TAP test harness
23 + Added TAP options --merge --ignore-exit
25 + 3 month cycle for supported releases
26 + Review and vote of GSoC applications
30 + Most internal allocations now use the GC
31 + RNG non-randomnes fixes
32 + Elimination of much dead code
34 + PMCs can now be initialized from an int
35 + Many legacy ops are removed
37 + Sun cc and Intel icc support have been restored
38 + Compiler invocation no longer goes through a Perl script
40 + NCI thunks are now generated by self-hosted PIR code
44 + GC performance and encapsulation were greatly improved.
45 + PMC freeze refactored.
46 + More Makefile and build improvements.
48 + The Array PMC was removed.
49 + Several deprecated vtables were removed.
50 + The OrderedHash PMC was substantialy improved.
52 + Packaging improvements on some operating systems.
54 + Some cases in pbc_merge are now handled.
55 + Improvements were made to the dependency checker.
56 + New tool nativecall.pir added.
60 + Context PMCs now support attribute-based introspection
61 + Context and CallSignature PMCs merged into CallContext
62 + .lex directive throws exceptions when used with incorrect register types
64 + Packaging improved for free OS distributions
65 + PPC, PPC64, and ARM now tested when running Linux
67 + Minor improvements to the profiling runcore
68 + Improvements from the CallContext PMC merge
70 + In/out parameters in STRING modification functions
71 + Void handling in NCI signatures
72 + Parameter passing opcodes order in PBC
74 + Continued migration of core tests from Perl 5 to PIR
76 + dependency checker improved
78 + Deprecation cycle length changed to three months from six
79 + GC accuracy improved
80 + PMC freeze improvements; much more reliable
81 + Makefile improvements for dependency handling
85 + Made profiling runcore output format configurable and extensible
86 options include "pprof" and "none" ("binary" and "callgrind" are planned)
87 + Added environment variables to specify profiling output type and filename
88 (PARROT_PROFILING_OUTPUT and PARROT_PROFILING_FILENAME)
89 + Began merging Freeze/Thaw and Bytecode generator/loader
91 + Included latest nqp-rx compiler, with many improvements
92 - GLOBAL:: package identifier
93 - dynamic variables look in global namespace
94 - $obj."$method" syntax
95 - :p(os) and :c(ontinue) option on regexes
96 - try/CATCH/CONTROL handling
97 - support leading & on subroutine declarations
98 - allow "category:<symbol>" names (for builtin operators)
99 - simple version of smartmatch operator
100 - simple regex matches
101 - updated HLL::Compiler with new import/export methods
103 + Portability updates for RTEMS, and Intel architectures with GNU compilers
104 + Completed conversion of ticket tracking system from RT to Trac
105 + New draft of PDD31 for HLL export API and import implementation
106 + Several (build time, runtime) performance improvements
107 + Converted many tests to PIR, reducing test execution time
108 + Various bugfixes, code cleanups, and coding standard fixes
112 + The FileHandle PMC now exposes the exit code of child process that was run as pipe.
113 + Experimental support for overriding VTABLE invoke in PIR objects was added.
114 + The method 'type' was added to the PackfileAnnotations PMC.
115 + The internals of the parrot calling conventions, PCC, were reworked.
116 All call paths now use a CallSignature object for passing arguments and return values.
117 + The new API-function 'Parrot_ext_call' was added for calling into C-land.
118 + The fixed-size allocator was improved.
119 + The files installed by 'make install-dev' are now covered by 'make install' as well.
120 + The experimental ops 'fetch' and 'vivify' were added.
121 + The -I option to the command 'parrot' now prepends items to the search path.
122 + The Context struct was substituted with auto attributes (context_auto_attrs branch).
123 + Use the osname determined in auto::arch in subsequent configuration steps (convert_OSNAME branch).
124 + Eliminated dependence on Perl 5 '%Config' in auto::format (auto_format_no_Config branch).
125 + MultiSub PMCs now stringify to the name of their first candidate,
126 instead of the number of candidates.
127 + The platform detection at the start of the configuration process was improved.
128 + The 'lineof' method on CodeString objects now precomputes line number information
129 to be more efficient on variable-width encoded strings.
130 + P6object now supports .WHO and .WHERE methods on protoobjects.
132 + A shiny new self-hosting implementation of NQP has been added in ext/nqp-rx.
133 - New NQP available as nqp-rx.pbc or parrot-nqp fakecutable.
134 - NQP includes direct support for grammars and regexes, including protoregexes.
135 - NQP has a new PAST-based regex engine (intended to replace PGE).
136 - Regexes may contain code assertions, parameters, lexical declarations, and more.
137 - Double-quoted strings now interpolate scalar variables and closures.
138 - Subroutine declarations are now lexical by default.
140 - PAST::Block now supports an 'nsentry' attribute.
141 - PAST::Var allows 'contextual' scope.
142 - Attribute bindings now return the bound value.
144 + Fixes for the port of Parrot to RTEMS were applied. Yay, first port to a real time OS!
145 + On NetBSD, shared libs are now used.
147 + Use the the fixed-sized allocator in the Context and the CallSignature PMC.
148 + Many small speed improvements.
150 + MT19937, the Mersenne twisted pseudorandom number generator, is now hosted on github and
151 will be removed from the Parrot core. (eligible in 2.1)
152 + The 'Parrot_call_*' functions for invoking a sub/method object from C are
153 deprecated. They are replaced by 'Parrot_ext_call'. (eligible in 2.1)
154 + All bitwise VTABLE functions are deprecated. (eligible in 2.1)
155 + All bitwise ops will become dynops. (eligible in 2.1)
156 - Realized deprecations
157 + The slice VTABLE entry was removed.
158 + The last traces of the 'malloc' garbage collector were removed.
159 + Parrot_pcc_constants() was renamed to Parrot_pcc_get_constants().
160 + The deprecated functions from the Embedding/Extension interface were removed.
161 + The library YAML/Parser/Syck.pir was removed.
162 + The VTABLE function instantiate_str() was removed.
163 + Building of parrot_nqp was removed.
165 + The test coverage of the time-related ops was much improved.
166 + New testing functions in Test::More: lives_ok() and dies_ok().
167 + The Perl 5 based test scripts t/op/bitwise.t, t/op/comp.t, t/op/inf_nan.t,
168 t/op/literal.t, t/op/number.t, t/op/sprintf2.t, and t/op/00ff-dos.t were converted to PIR.
169 + The test scripts t/op/annotate.t and t/op/time.t have begun
170 to be translated from Perl 5 to PIR.
171 + In some tests the dependency on %Config from Perl 5 was eliminated.
173 + The meaning of 'p' means in NCI function call signatures was clarified.
175 + The stub for a new language, as created by mk_language_shell.pl,
176 now relies on the PIR-based tools, which are replacing the Perl 5-based tools.
177 + The library Configure.pir was added.
178 + The library distutils.pir was added.
180 + The mailing list parrot-users and a corresponding google group was created,
181 http://groups.google.com/group/parrot-users.
182 + Many bugfixes, code cleanups, and coding standard fixes.
186 + Parrot_capture_lex has been added to the PARROT_EXPORT API
187 + PARROT_MAX_ARGS has been increased from 8 to 16 to allow for ops that take more than 8 args
189 + The profiling runcore now caches metadata for improved performance
190 - Maintenance and cleanup
191 + Expanded the Parrot debugger documentation
192 + Parrot debugger now uses the new Parrot STRING API
193 + Continue to port rest of internals to use the STRING API
195 + The JIT subsystem has been removed and is being written from the ground up. More
196 information can be found at https://trac.parrot.org/parrot/wiki/JITRewrite
197 + Implicit optional named parameters (eligible in 2.1)
198 + Continuation-based ExceptionHandlers (eligible in 2.1)
199 + Use of undocumented variables in class_init (eligible in 2.1)
200 + Parrot_oo_get_namespace (eligible in 2.1)
202 + Improved line number tracking in IMCC
204 + Converted many more Perl 5 tests to PIR
205 + Expanded test coverage of the CallSignature, Namespace, FixedPMCArray,
206 ResizeableIntegerArray and ExceptionHandler PMCs
210 + Added a fixed-size structure allocator to the Garbage Collector
211 + Added a "lazy" mode to the PObj and Fixed-Size memory allocators
212 + Added a profiling runcore, which generates Callgrind-compatible output
213 + Added lexical subsystem opcodes: find_dynamic_lex, store_dynamic_lex
214 + Converted Contexts to garbage-collectable PMC structures
215 + Created a new Context API
216 + Enhanced the PMC allocator to automatically allocate ATTR structures
218 + Optimized opcodes to cache the current Context for subsequent lookups
219 + Reduced string comparisons in VTABLE_isa
220 - Maintenance and cleanup
221 + Began proper encapsulation of STRING API
222 + Unified all PMC destruction functions
223 + Unified Continuation PMC and Parrot_cont structure
224 + Unified Sub PMC and Parrot_sub structure
225 + Removed PMC_EXT structure
226 + Removed PMC_Sync from PMC
227 + Removed UnionVal from PMC structure
229 + Fixed several stack-walking bugs in Garbage Collector code
230 + Fixed bug when copying a NULL STRING, now returns empty STRING struct
232 + Converted several Perl5 tests to PIR
233 + Expanded test coverage of NameSpace PMC
235 + Made Parrot Compiler Toolkit available in the base install
239 + Removed several deprecated functions and features
240 + Removed bsr, jsr, branch_cs, and ret opcodes
241 + Removed global stacks system
242 + Changed OPS file format to include explicit preamble
243 + Changed all "new 'Iterator'" instructions into 'iter' instructions
244 + Removed Configure.pl options for specifying non-working GC cores
245 + Removed unexecuting code as found by Coverity
246 + Improvements to the Parrot Debugger
247 + Added experimental fixed-size structure allocator to the GC
248 + Added experimental lazy arena allocation to the GC
249 + Refactored hashes, keys, and iterators
250 + Added "corevm" make target to build Parrot without all the supporting libraries
251 + Removed Random PMC type and added in a "rand" dynop
252 + Optimization and Improvements to the NCI thunk generator
253 + New include file libpaths.pasm
255 + Multiple .local with same name and different type is now an error on IMCC.
257 + Improved support for detecting Fink and Macports
258 + Updated search directories for libraries
260 + "Parrot Developers Guide: PIR" released to publisher and available to purchase
261 + Improved documentation about Parrot Debugger
262 + Update PGE Documentation
264 + Deprecate 'PASM1' compiler object, update to warn instead of segfault
266 + Fixes to code, documentation, and standards
270 + Key and Iterator refactor
271 + Major pbc_to_exe generated code speed improvement
272 + New "Infinite Memory" GC core for demonstration purposes
273 + gc_debug runcore and GC-related heisenbug fixes
274 + Elimination of variable expansion in parrot_config
275 + CLI arguments are processed as Unicode by default
276 + Substantial optimizations in NCI
277 + Parrot builds on Win64
278 + Hashes can use native types as keys and values
279 + Fixed installed pbc_to_exe
280 + Simplification of PMC generation code
281 + Improved GC encapsulation and API documentation
283 + List of candidates for embedding API (docs/embed.pod)
284 + PIR book sent to publisher
286 + Several conversions of Perl test to pure PIR.
287 + C indentation coding standards test improvement
288 + Improved test coverage of example code
290 + Removal of PGE rules: <null> <fail> <sp> <lt> <gt> <dot>
291 + Removal of PGE methods: .text .item .result_object
292 + Deprecation of most dynops
294 + Beginnings of OpenGL::Math library; OpenGL bindings and library marked experimental
295 + Localizing and consting fixes
296 + Many memory and thread-related leaks plugged
300 + Optimized parts of the IO system
301 + Fixed inheritance hierarchy of FileHandle and Socket PMC types
302 + Fixed leaks involving subroutines and Parrot_Context
303 + Cleaned up and refactored GC internals, including fixes and optimizations
304 + Optimized PMC class manipulations to use type numbers instead of string names
305 + Fixed problems involving hashval calculations in strings
306 + Removed unnecessary MULTI dispatches in built-in PMCs
307 + Fixed memory leaks involving PMCs that were not properly destroyed
308 + Fixed creation of PMCProxy PMCs in correct namespaces
309 + Added preliminary Pipe support
310 + Fixed cloning of Object PMCs
311 + Added root_new opcode
312 + Added initial versions of Packfile PMCs with read/write capabilities
314 + Fixed several memory leaks in IMCC
315 + Updated PCT to use root_new opcode
316 + Added support for keyword "self" in NQP
318 + Improved and expanded /docs/book
319 + Updated project documentation
320 + Defined 'experimental' status and procedures in DEPRECATED.pod
322 + Cleaned code and improved code-level documentation
323 + Various bugfixes, code cleanups, and coding standard fixes
324 + Added an experimental compiler library to help use PIR libraries from HLLs
325 + Updated OpenGL library and examples to support experimental HLL import
329 + Fixes for pir classes inheriting from core pmcs.
330 + Cleaned up headers and reorganized some sources into subsystem directories.
331 + Clean up PMCs so libparrot.so exports far fewer vtable/method symbols.
332 + Clean up the GC API.
333 + Several unicode identifier improvements in IMCC.
335 + Protoobject stringification is gone.
337 + Rewrite several core documents.
338 + Many reworks, improvements & additions to the Parrot Book.
339 + Installation PDD is launched out of draft.
341 + Fixes for running the language shell generator outside the parrot tree.
342 + Several fixes for developing and building HLLs from an installed parrot.
343 + Configure.pl now has a --no-line-directives option to ease source level debugging.
345 + Portability updates for macports, netbsd, mingw32, hpux.
346 + Several (build time, runtime) performance improvements.
347 + Lots of updates to examples and tests.
348 + Various bugfixes, code cleanups, and coding standard fixes.
352 + Added op: load_language, find_caller_lex
353 + Socket IO are back as PMC
354 + Refactor some PMC: Hash, ManagedStruct
358 - Allow \x, \c, and \o in enumerated character classes (incl ranges)
359 - Add initial greedy-only version of ** <exp> quantifier
361 - Add HLL source line bytecode annotations
362 - Add another dumper format to assist syntax highlighters
363 - Revise mk_language_shell.pl to updated create_language.pl
365 + Removed ops: gcd, exec, classname, need_finalize, runinterp, substr_r
366 + Removed dynamic op: mul
367 + Removed .HLL_map directive; use interp's .hll_map() instead
368 + Removed PMCs: slice, bound_nci, ref
369 + Removed Configure.pl option: --pmc
370 + Removed PMC union struct
373 - Reorganization and many improvements & additions
375 + Add a parrot-fuzzer
377 + Improve Debian/Ubuntu package
378 + various bugfixes, code cleanups, and coding standard fixes
383 + New user documentation for exceptions.
384 + Updates to Chapters 4 & 5 of the Parrot book.
385 + Improved and expanded generated HTML documentation, as the input for
386 http://docs.parrot.org.
387 + Added Compiled HTML Help (.chm) version of documentation.
388 + Cleanups and fixes.
391 - left the nest and is now at http://pynie.googlecode.com/
393 - left the nest and is now at http://github.com/cardinal
395 - left the nest and is now at http://paraplegic.googlecode.com/
396 + ABC, Squaak, and Befunge moved to examples/.
397 + All remaining languages moved to https://svn.parrot.org/languages/
399 + Support for language builds from an installed Parrot.
400 + Expanded language shell generator for new languages.
401 + 'parrotbug' utility repurposed for the Trac interface.
403 + Removed deprecated Tqueue and Closure PMCs.
404 + String, Key, NCI, LexPad, Iterator, Sub, Continuation, RetContinuation,
405 ExceptionHandler, ParrotLibrary, ParrotInterpreter, ParrotThread,
406 ParrotRunningThread, Rational, FixedPMCArray, ResizablePMCArray, and
407 GDBMHash PMCs now use declared attributes (ATTR), in place of the
413 + Support for portable 'Inf', 'NaN' and -0.0
414 + pbc_disassemble prints constants in constants table
415 + New experimental BigNum implementation
416 + Pair is now a dynamic loadable PMC
417 + Various function name sanification
418 + New implementation of Strings component
419 + Replace various PMC value union access code by VTABLE method invocations
420 + Replace various PMC value unions by ATTRibutes
421 + Removed SArray PMC. Use FixedPMCArray instead.
424 - updates to Chapter 2 (getting started)
425 - updates to Chapter 3 (PIR basics)
426 - updates to Chapter 4 (PIR subroutines)
427 - updates to Chapter 10 (HLLs)
428 - updates to Chapter 12 (opcodes)
429 + Function documentation
430 + Pod documentation style modernized; no longer Perl 5 style.
431 + PMC has an additional acronym: Poly Morphic Container
432 + The DOD (Dead Object Detection) acronym is no longer used;
433 use 'GC' to refer to the Garbage Collector component.
436 - :named flag can now take string registers as argument
437 - A single '=cut' directive is now ignored (without initial Pod directive)
438 - :vtable subs now have proper access to 'self' pseudo variable
440 + add new 'Pod' documentation parser
441 + Pipp (PHP implementation):
442 - Pipp is now at http://github.com/bschmalhofer/pipp
443 - support for 'print', 'dirname', 'implode', 'str_replace',
444 - various grammar fixes
446 + add 'quit', 'readline' builtins
447 + fix 'Boolean' type and 'print' builtin
449 - left the nest and is now at http://github.com/fperrad/lua/
451 - left the nest and is now at http://github.com/rakudo/rakudo/
452 - build instructions can be found at http://tinyurl.com/rakudo
454 - left the nest and is now at http://github.com/bschmalhofer/lazy-k.git
456 - left the nest and is now at http://github.com/bschmalhofer/unlambda/
458 - left the nest and is now at http://github.com/fperrad/wmlscript.git
459 + removed Zcode implementation
462 - ATTRs are now inherited automatically in subclassing PMCs
464 + Parrot_readbc, Parrot_loadbc renamed to Parrot_pbc_read, Parrot_pbc_load.
465 + .HLL_map directive in favour of 'hll_map' method on Parrot interpreter
466 + Data::Escape library
468 + pbc_disassemble options added
469 + pbc_dump renamed from pdump
471 + Parrot is now Copyright Parrot Foundation
472 + Parrot's SVN repository is now hosted at https://svn.parrot.org
473 + Various code cleanups, consting, 64-bit incompatibilities and other bug fixes
476 New in January 2009 release (0.9.0)
478 + Implemented bytecode annotations
479 + Role composition is now aware of multi-subs
480 + Unbuffered IO PMCs now autopromote when buffering is necessary
481 + Installation parrot binary and libparrot shared library now supported
482 + Class registry now respects HLLs
485 - removed keyed string indexing, e.g. $S0[1].
486 - removed slice syntax, e.g. $P0[1..2]
487 - removed .namespace <ident>/.endnamespace <ident> pair
488 - fixed 'new $P0, [classname]' syntax
490 - refactoring of various data structures
491 - various bug fixes and updates
492 - complete bytecode generation
493 - add '-x' commandline option to run compiled code
495 - add 'hll' and 'subid' attributes to PAST::Block
496 - refactor loop handling code to handle last/redo/next
497 - add :pasttype('stmts') and :pasttype('null')
498 - improve "scope not found" error message
499 - allow PAST::Val nodes to contain block references
501 - add "skipkey" option to PGE::OPTable
502 - allow spaces before modifiers in regexes
503 - add '(' ~ ')' goal matching syntax
504 - skip creating a class/grammar if it already exists
507 - improved error mesages in multi dispatch
508 - implemented clone method for all objects
509 - implemented MAIN sub
510 - Unicode versions of infix hyper operators
511 - refactored IO.readline
512 - basic support for Inf and NaN
513 - list and array slices with whatever star
515 - implemented last and redo
516 - pointy blocks as terms
517 - refactored variable and parameter passing
518 - improved assignment semantics
519 - improved parsing of type names and subs
520 - mostly implemented parametric roles
521 - separate types for blocks, subs and methods
522 - basic support for submethods
523 - implemented Junction autothreading of user code (not builtins yet)
524 - eval supports :lang attribute
525 - proto makes other subs in scope multis, including in role composition
527 - back to working state
530 - add support for predefined constant __CLASS__ and __METHOD__
531 - add initial support for static members
532 - add support for namespaced constants
533 - constants are now handled as package vars
534 - variables are now lexical variables
535 - add support for superglobals in functions
536 - Call the class __constructor when there is one
537 - added incomplete support for closures
538 - removed support for the alternative parsing strategies
539 - added support for 'elsif'
540 - added support for 'do-while'
542 - left the nest and is now at https://github.com/bschmalhofer/hq9plus/
544 - left the nest and is now at http://github.com/bschmalhofer/eclectus/
546 - left the nest and is now at http://github.com/bschmalhofer/m4/
548 - add a minimalist user back trace
550 - "does" and "morph" VTABLE interfaces are now overridable from PIR
553 - 'make smoke' now generates Smolder reports sent to
554 http://smolder.plusthree.com/app/public_projects/smoke_reports/8
555 + Improved const and null correctness for C function parameters
556 + Sped up STRING manipulation (append, chop), improving PGE about 30%
558 - Added sections about Classes, OO programming, and methods.
559 - Added information about Annotations, Exceptions, and Handlers
561 - Removed non-functional STM subsystem
566 + fixed lexical semantics
567 + added the 'capture_lex' opcode
568 + added automatic resume for nonfatal exceptions
569 + added multidispatch cache
570 + applied miscellaneous performance improvements, including startup time
571 + fixed several bugs and leaks found by Coverity Scan
572 + removed race conditions from parallel testing
575 - removed undocumented .param int <stringc> => <ident> syntax
576 - .line directive now only takes an integer argument
577 - new .file directive to specify the file name being compiled
579 - properly handles lexical generation and closure semantics
580 - uses :subid instead of name lookups to reference PAST::Block nodes
581 - added PAST::Control node type (exception handlers)
583 - add support for <?{{...}}> and <!{{...}}> assertions
584 - Match objects use Capture PMC instead of Capture_PIR
586 - add macro handling to PASM mode
587 - disable vanilla register allocation in PASM mode, but do allow optimization
588 - add tests and bug fixes
589 - first bits of bytecode generation. No sub calling/returning yet.
592 - fixed lexical handling and recursion
593 - refactored subtypes implementation
594 - support for quotes with multi-character delimiters
595 - implemented list slices (Positional role)
597 - reduction meta operators
598 - hyper meta operators
599 - cross meta operators
600 - more builtin functions
602 - basic support for protos
603 - iterator on filehandle objects
604 - basic support for exception handlers
607 - added complex & mathx libraries
608 - merged LuaClosure & LuaFunction PMC
610 - added support for a return value from user defined functions
611 - added incomplete implemention of 'require_once'
613 - parser fixes, parses spidermonkey's top level test/shell.js
615 + PARROT_API is now PARROT_EXPORT
617 - :lexid is now :subid
618 - .arg is now .set_arg
619 - .result is now .get_result
620 - .yield (in .begin/end_yield) is now .set_yield
621 - .return (in .begin/end_return) is now .set_return
622 - .namespace x / .endnamespace x syntax is removed
623 + Capture_PIR (runtime/parrot/library/Parrot/Capture_PIR.pir)
627 + added CPAN module Storable 2.12 as a configuration and build dependency
628 + removed the pseudo PIR opcode 'addr'
629 + added the 'box' opcode
630 + fixed 'pop_eh' handling in PIR libraries and examples
631 + removed usage of .return for tailcalls (use .tailcall instead)
632 + removed 'get_hash' and 'get_array' from Capture PMC and Capture_PIR
633 + improved debugger and HLL coordination
634 + allowed MMD primitive autoboxing
635 + fixed all known memory leaks in PIR "Hello, world!"
636 + NCI signatures now JITted on x86-32 platforms (Windows and Linux)
637 + made the .const directive take a quoted type name instead of a constant
638 + made IMCC more re-entrant
641 - refactored Junctions implementation
642 - added "fire and forget" tool to rebase/rebuild/test Parrot and Rakudo
643 - updated container/reference semantics
644 - added more builtin methods and functions
645 - improved support for multilevel namespaces
646 - added support for .Str, .succ, .pred in user-defined classes
647 - implemented pointy blocks on if/loops
648 - increased STD.pm convergence
650 - improved MMD candidate sorting
651 - improved integration of Num and Int
652 - implemented increment on protoobjects
653 - added initial support for MAIN subs
654 - added .PARROT method
656 - added some predefined constants
657 - added implemention of the function basename()
659 - Added initial support for the classes Proc, Continuation, Queue, Dir, File, and FileStat
660 - fixed various minor bugs
661 - fixed broken Regexes
664 - added '.isa' method to PCT::Node
665 - cleaned up 'immediate block' handling
666 - allowed arguments to immediate blocks in loops/conditionals
667 - metaclass objects can now 'add_method'
669 - integrated macro processing in PIRC's lexer
670 - integrated heredoc lexer in PIRC executable
671 - added preprocess and heredoc-preprocess commandline options
672 - integrated the PASM grammar into PIRC
673 - added a register allocator to optimize the built-in vanilla allocator
674 - code cleanups and documentation
675 - added 'make test' target
677 - updated to work with new namespace/classname syntax
679 + PARROT_API will become PARROT_EXPORT
680 + :lexid will become :subid
683 - updates and additions to the Parrot book (see docs/book/)
685 - minor fixes to Parrot's base OpenGL bindings
686 - converted OpenGL PIR examples to Perl 6 (two complete, one WIP)
687 - added simplified OpenGL PIR example for NCI JIT testing
689 - further improvements to parallel tests
690 - tests no longer leave filesystem breadcrumbs
691 - more thorough testing of Parrot::Test itself
695 + float precision expanded to 15 significant digits from 6
696 + large integers autopromoted in PIR so as not to lose precision
697 + improved precision of complex square root
698 + exception handlers can register types of exceptions they catch
701 - implemented gather, take, and yield builtins
702 - Range, Time, Math, GC, Kernel classes
704 - added a new committer
705 + Markdown : new lightweight markup language
706 - start implementation with PCT/NQP
708 - Moved to its own repository: http://code.google.com/p/partcl/
710 - split() works with regexes
711 - implemented Str.comb
712 - ord() and chr() builtins
713 - improved parsing of literal numbers
714 - support for hyphens and dashes in identifiers
715 - next() on for-loops
716 - fixed floating point constant precision
717 - improved namespace handling, closer to STD.pm model
718 - support for exporting symbols
721 - now generates classes in nested namespaces instead of :: names
722 - supports class creation in caller's HLL namespace
724 - now using true nested namespaces instead of :: names
725 - cleaned up HLLCompiler interactive prompts and readline mode
726 - updated to use typed exception handler registration
727 - added initial support for loop control exceptions
729 - fixed Heredoc preprocessor
730 - cleaned up Macro preprocessor
731 - many code clean-ups, warning fixes and consting
732 - updated Makefile for easier compilation
734 - Added .tailcall syntax to replace .return in tailcall context
737 - an old style line numbered Basic interpreter able to use parrot objects
738 - example connecting to mysql via nci
739 - example using classes to write and run an embedded Basic program
742 - Added chapters for PCT, PMCs, and Opcodes/Runcores
743 - Expanded and improved formatting in various chapters
744 - Renumbered chapters
749 + add -I and -L command line options
750 + support for null strings in NCI calls
751 + preliminary support for resumable exceptions
752 + add '.hll_map' method for dynamic HLL type mapping
753 + more parrot_debugger fixes
754 + remove obsolete '.past' extension
757 - now over 3300 passing spectests
758 - precompiled modules
759 - precompiled scripts (--target=pir can now be executed standalone)
760 - Support for @*INC and %*INC varialbes
761 - additional builtin methods and subs
762 - added 'fail' function, warnings on use of undefined values
764 - qq, qw, q quoting forms
765 - run tests in parallel
769 - 'require' and precompiled modules
771 - all Array tests pass
773 - default arguments to functions
777 - add :loadinit attribute for PAST::Block
779 - major refactoring to allow all PIR keywords as identifiers
780 - links to libparrot now, so all Parrot ops are recognized as such
781 - implemented .loadlib, .HLL_map, .HLL
783 + add Xlib and Mysql modules and test programs to NCI examples
784 + many updates and cleanups to PDD documents
788 + PDD27: add multisub lookup
790 + new concurrency implementation (see PDD25)
791 + Exception PMC now captures a return continuation
792 + improved PMC encapsulation (Iterator, Key, Pair)
796 - parsing improvements
797 - minor additions to class builtins
798 - add support for block parameters to functions
800 - various language fixes
801 - refactor all libraries (namespace, method registration)
802 - add a OpenGL binding (still incomplete)
803 - lost user back trace (see ppd25 & pushaction)
805 - add support for while- and for-loops
806 - add support for increment and decrement
807 - designate PHP 5.3 as the reference implementation
808 - improve support for string literals
810 - removed due to bit rot
812 - now over 2200 passing spectests
813 - updated the Rakudo roadmap
814 - Perl 6 multi dispatch
815 - dispatch with slurpies
816 - class attributes ("my $.x")
818 - OO and metaclass improvements (.WHAT, .WHICH, .WHENCE)
819 - additional builtin methods and subs
820 - improved make test targets and harness
822 - implement [lreverse], [lsort -command]
823 - allow [incr] to autovivify
824 - update tclsh spec target to 8.5.3
825 - fix bug in TclDict PMC, allowing ~200 more [dict] spec tests to pass
826 - update 'make spectest' fudging, using TODO instead of SKIP if possible
829 - :scope('register') for PAST::Var nodes
830 - allow invocant specification in attribute scope PAST::Var nodes
831 - correct ordering of sub generation from POST
832 - add 'loadinit' attribute to PAST::Block for block initialization
834 - PIR registers now use the vanilla register allocator
835 - all PASM output now uses PASM registers
836 - all .locals and $registers are mapped
837 - clean-up of grammar, back-end and documentation
838 - implemented constant folding
839 - implemented instruction selection
841 + tests now clean up after themselves
842 + improved parallel test support
844 + Darwin problems fixed
846 + parrot_debugger renamed from pdb, numerous tweaks
849 + :vtable implies self in PIR
850 + modest core speed improvements
851 + Cygwin support improved
852 + "say" now an opcode (was dispatched to a method; see Deprecations)
854 + ".pragma n_operators" is deprecated
855 + old PASM register syntax (without "$") is deprecated
856 + bare (unquoted) method names are deprecated
857 + "#line" will be replaced with ".line"
858 + ".HLL_map" syntax will change
859 + ".loadlib" is now separate from ".HLL"
860 + mmdvtregister and mmdvtablefind opcodes are deprecated
861 + removed getfd, getclass opcodes
862 + removed IMCC syntax that treated some methods as builtins
863 + removed numeric get_attr and set_attr vtable entries
867 + removed a lot of old information from the FAQ
868 + improved function level documentation
870 + removed the configuration item 'has_gnu_m4'
871 + refactored ICU-detection
874 - improved the Smalltalk implementation
876 - renamed Plumhead to Pipp
877 - support for a lot of builtin functions.
878 - Pipp now uses PHP specific data types.
879 - converted from PCT with TGE to PCT with NQP actions
880 - improvements in the PCT variant by using optok parsing
881 - start of object support
883 - simple assignments work
885 - added a PCT-based implementation of JSON parsing
887 - improved handling of symbols
888 - added support for block handling
889 - added support for globals
893 - updated Range implementation
895 - added generic type declarations (::T)
896 - added runtime mixing of roles with 'does' and 'but'
897 - fixed handling of implicit lexicals ($_, $!, and $/)
898 - fixed implicit method calls on $_
899 - improved complex math builtins, added Complex
900 - moved many builtins to class Any
901 - declaration of lists of variables now work
902 - improved test infrastructure
903 - 910 additional passing spec tests since last release
904 - more convergence with STD.pm grammar
905 - added named 0-ary parsing and ops
908 - allowed subroutine and method names to be a PAST tree that produces the name
909 - Improved lexical handling
911 + pbc_disassemble renamed from disassemble
913 + allowed .macro_const in PIR
914 + added the flag :lexid(...) for subroutines
915 + made multiple dispatch work for sub types
916 + fixed garbage collection bug related to the metadata attached to a PMC_EXT structure
917 + added a warning when using deprecated opcodes
918 + simplified the stacks implementation
920 + improved closure and lexical support
921 + improved IMCC register allocator
922 + added cache for all runtime-constant strings, reducing memory usage
924 + improved OpenGL/GLU/GLUT bindings
925 + added a standard profile for Perl::Critic coding standard testing
926 + added support for smoke testing with Smolder
927 + enabled use of Test::Harness 3.0 if available, but don't require it for 'make test'
928 + added the executable 'parrot_config' to query Parrot configuration
932 + updated pdd09_gc.pod
935 - dramatically improved parsing speed
936 - added support for defining and instantiating classes
937 - started fleshing out the builtin class hierarchy
938 - added support for hashes and arrays
939 + Chitchat: added the start of a smalltalk compiler
940 + Pheme: updated to match PGE changes
941 + Pynie: return statement, other minor updates
943 - added working list and hash contexts
944 - added 'return' statements
945 - added => pair constructor
946 - added ?? !! ternary
947 - added Range, range operators, Complex
948 - added common List, Hash methods
949 - refactored base classes
950 - added Mutable, Perl6Scalar classes
951 - added type-checking, is readonly/rw/copy for parameters
952 - added make localtest, docs/spectest-progress.csv
954 + Squaak: implement return statement
955 + Tcl: updated control flow exceptions to use new builtin types
957 + All tools converted to P6object metamodel
959 - <?foo> is now a zero-width match
960 - reduced backtracking to improve parsing speed
962 - added "return" PAST.op node type for subroutine returns
963 - added "keyed_int" scoping to PAST::Var
964 - fixed calls to closures
965 - automatically transcode 7-bit unicode to ascii for faster processing
966 + NQP: added "return" statement, ?? !! ternary operator
968 + expanded step gen::opengl
970 + updated function and macro names to match pdd09_gc.pod
972 + add ".namespace []" as alternative to ".namespace"
973 + "make codetest" target runs standard coding tests
975 + added P6object class for Perl 6 interfaces to objects in Parrot
976 + ported OpenGL/GLU/GLUT bindings to Win32, BSD, and more Mac OS X variants
977 + generate OpenGL/GLU/GLUT bindings by parsing system headers
978 + new OpenGL example shapes.pir, covering basic OpenGL 1.1 / GLUT 3 APIs
979 + new float4.pir structure-packing benchmark
980 + reduced memory use for variables
981 + improved constant string caching
982 + made code g++ and gcc (with optimizations) safe
983 + the usual collection of bugfixes and optimizations
987 + updated and launched pdd28_strings.pod
988 + updated pdd19_pir.pod
990 + added implementation of Rational PMC.
991 + simplified ops control flow syntax
992 + enabled backtrace on non-glibc platforms too
993 + improved some PIR error reporting
994 + removed user stack opcodes
995 (save, restore, lookback, entrytype, depth, rotate_up)
996 (NOTE: This was scheduled to occur after 0.7.0, moved up to this release)
997 + removed register stack, saveall, and restoreall opcodes
998 + removed various deprecated features and unused code
1001 + C99: grammar updated
1002 + Cardinal: resurrected, method calls and do blocks work now
1003 + Eclectus: use NQP as PAST generating code
1005 - added big number library
1006 - updated to match PGE changes
1007 - added a bytecode disassembler & a Lua 5.1 VM bytecode translator
1008 + Pheme: updated to match PGE/PCT changes
1010 - use NQP as PAST generating code
1011 - use riaxpander for macro expansion
1014 - conditional and loop statement modifiers
1015 - lots of class, object, role, and method improvements
1016 - Str increment and decrement
1017 - improved spectest reporting
1018 - type checking on assignment
1019 - regexes and grammars
1023 + Squaak: added to repository
1026 + PGE: updated to match Synopsis 5, deprecated features removed
1028 - improve handling of register types, conversion between registers
1029 - improved error diagnostics
1030 - add 'arity' to for loops
1032 + added step auto::opengl
1033 + added step gen::opengl
1034 + added step gen::call_list
1036 + still more optimizations and performance improvements, especially in GC
1037 + new libraries: OpenGL/GLU/GLUT bindings (small subset working)
1038 + new dump_pbc.pl utility: PBC disassembly/source code weaver
1039 + improved C++ compiler support
1040 + optimized builds work again
1045 + drafted pdd29_compiler_tools.pod
1046 + updated pdd28_character_sets.pod draft
1047 + updated pdd19_pir.pod draft
1049 + c99: added independent C pre-processor
1050 + HQ9+: reimplemented with PCT
1052 . reimplementation with PCT, using PAST and POST
1053 . behavior aligned wih 5.1.3
1055 . implemented basic I/O, including '$*IN', '$*OUT', '$*ERR', 'prefix:='
1056 . implemented simple typing and runtime type checking
1057 . added basic multi-method dispatch
1058 . expanded named argument handling, including Pair and colonpairs
1059 . added 'Whatever' and 'Capture' classes
1060 . implemented 'handles' trait verb
1061 . added 'loop' statement
1062 . implemented 'given', 'when', 'for', 'while', 'until' statement modifiers
1063 . implemented Hash methods '.keys' and '.values'
1064 . fixed bug to get '.WHAT' working correctly
1065 . initial implementation of 'eval'
1068 . created a bootstrapped build, see 'make boot'
1069 . added 'infix:<', 'infix:<=', 'infix:>', 'infix:>=' relational operators
1070 . added 'postfix:++', 'postfix:--' operators
1072 . added methods specifying default behaviors in PAST, reducing repeated code
1073 . improved symbol table lookup
1075 . removed deprecated code including: P6Regex, P6Grammar, PAST-pm
1077 + notable speedups during compilation and execution of parrot and HLLs
1078 + pdb (the parrot debugger) can now catch parrot exceptions
1079 + better detection of glibc and gettext during configuration
1080 + various bugfixes, code cleanups, deprecations, and coding standard fixes
1085 + launched pdd18_security.pod
1086 + updated pdd17_pmc.pod
1087 + launching draft of pdd28_character_sets.pod
1089 + cleanup of IMCC documentation
1091 + add step auto::gettext
1092 + add step auto::crypto
1096 . Phase out P6Regex in favor of Perl6Regex
1098 '.local Array my_arr' is illegal now
1100 + C99: reimplementation with PCT
1103 . add support for functions with params
1104 . add math functions
1107 . first cut at smart matching
1108 . indirect method calls
1110 . added methods 'grep' and 'first'
1111 . implement auto{increment,decrement}
1112 . initial implementation of 'perl6doc'
1115 . add base64 library
1116 + Cardinal: basic support for functions with parameters
1117 + Pheme: various updates
1118 + Ecmascript: various updates
1119 + Tcl: now targeting tcl 8.5.1, no more expected failures in test suite.
1120 (No, this doesn't mean everything's implemented. =-)
1121 + Eclectus: various updates
1122 + WMLScript: various updates
1125 + Add library YAML::Dumper
1126 + Add the MD2, MD4, MD5, RIPEMD160, SHA & SHA1 PMC, as a wrapper
1129 + various bugfixes, code cleanups and coding standard fixes
1131 + remove external Perl 5 modules from the Parrot distribution
1135 + PDD09 (garbage collection) - approved
1136 + PDD28 (character sets) - draft started
1137 + added function documentation to some core functions
1138 + PCT beginners guide, optable guide and PAST nodes guide, bug fixes
1140 + IMCC: plugged various memory leaks and other cleanups
1142 . add "attribute" as a scope variant to PAST::Var nodes
1143 . add 'shift' and 'pop' methods to PAST:: nodes
1144 + NQP: add '=:=' op, tests for scalar and list contextualizers, \x escapes
1146 + APL: reimplementation with PCT
1147 + Cardinal (Ruby): reimplemention with PCT
1148 + Ecmascript: reimplementation with PCT
1149 + lolcode: improved expression parsing, ifthen, IT, YARN
1151 . aligned with Lua official release 5.1.3.
1152 . added initial PCT-based implementation.
1153 + Punie (Perl 1): refactor to use standard PCT-based filenames
1154 + Pynie (Python): add functions
1156 . rebranded, formerly known as 'perl6'
1157 . passes many more official Perl 6 Specification tests
1158 . added 'perl6doc' utility
1159 . oo including meta?classes, objects, methods, attributes, role composition
1160 . match variables, while/until statements, traits
1161 . many new methods for Str, List, Hash, Junction
1164 + PCCINVOKE syntax for named arguments using []; use () instead.
1165 + see DEPRECATED.pod for details
1167 + pbc_to_exe refactored for code reduction, portability, and maintainability
1169 + #line directives added to generated JIT files, improving debugging
1170 + consting, attribute marking, refactoring, warnings cleanup
1174 + PDD27 (multiple dispatch) - debut of new design
1175 + Numerous small updates to glossary.pod, etc
1177 + NQP: optional, named, and named/required parameters
1179 + PAST: "defined-or"
1181 + New mk_language_shell.pl script creates language stubs
1184 + Eclectus: start with support for local variables and procedures,
1185 use SXML as intermediate representation
1186 + Perl 6: list builtins, compiler directives, command-line options, etc.
1187 + "make perl6" now builds a Perl 6 executable
1188 + punie: more builtins, control structures, code refactoring
1189 + pynie: builtin stubs, more tests
1191 + New "pbc_to_exe" utility turns bytecode to executables
1192 + New set_outer method for subs
1193 + Further configuration refactoring for testability
1194 + All functions now completely headerized
1195 + Concurrency: interpreter schedulers
1197 + DYNSELF (changes to SELF; SELF to STATICSELF)
1198 + METHOD (replaced by renaming PCCMETHOD)
1199 + pmcinfo op (superseded by 'inspect')
1200 + get_attr, set_attr, and 8 other vtable methods
1201 + See DEPRECATED.pod for details
1204 + Minor speed enhancements with UTF-8 string handling
1206 + consting, attribute marking, warnings cleanup, memory leaks plugged ...
1210 + PDD19 (PIR) - reflect state on the ground; incorporate old IMCC docs
1211 + PDD25 (Concurrency) - launch out of draft
1212 + Improve documentation of deprecated parrot features.
1214 + PCT: Parrot Compiler Toolkit redesigned and updated
1215 + NQP: major updates, including support for namespaces,
1216 module/class declarations, methods
1217 + IMCC: remove .sym as alias for .local. Remove .pcc_
1218 prefix for calling directives (.pcc_begin became .begin_call).
1219 + PIRC: creates an AST during the parse.
1220 + PGE: more updates to match S05 syntax.
1222 + perl6: re-implemented using PCT and NQP, new object subsystem
1223 + abc: re-implemented using PCT and NQP
1224 + eclectus: initial implementation
1225 + plumhead: add PCT variant
1226 + punie: re-implemented using PCT and NQP, extended to handle subroutines
1227 Happy 20th Birthday, Perl!
1228 + pynie: re-implemented using PCT and NQP
1229 + PIR: start conversion to NQP (under construction)
1231 + new opcodes: 'die', 'addhandler', 'copy'
1232 + Initial implementation of Concurrency PDD
1233 + Add 'arity' method to Sub and NCI PMCs
1236 + consting, attribute marking, warnings cleanup, memory leaks, GC...
1237 + dead code removal (includes some defunct languages)
1241 + PDD15 (OO) branch merged with trunk; this release contains a working,
1242 tested implementation of the latest OO model
1243 + Added pop_eh/push_eh_p/count_eh opcodes
1244 + Add --runcore command line option
1245 + Add gcdebug runcore to help track down GC bugs
1246 + minor improvements to IA-32 JIT
1248 + PDD19 (PIR): updates to macros, .pcc* directives
1249 + PDD25 (Concurrency): updated
1250 + PDD26 (AST): draft approved
1251 + PDD23 (Exceptions): draft approved
1252 + Copyright cleanups
1253 - Languages/Compilers
1254 + languages/APL: minor updates, PDD15 conformance
1255 + languages/dotnet: minor updates
1256 + languages/lua: minor updates, PDD15 conformance
1257 + languages/lisp: minor updates
1258 + languages/perl6: minor updates, PDD15 conformance
1259 + languages/plumhead: minor updates
1260 + languages/punie: minor updates, PDD15 conformance
1261 + languages/nqp: minor updates
1262 + languages/scheme: many updates, PDD15 conformance, improved tests, use
1263 PMCs instead of primitive registers to represent values
1264 + languages/tcl: bugfixes, PDD15 conformance
1265 + languages/WMLScript: minor updates
1266 + compilers/pirc: updates from PDD19, PDD06
1267 + compilers/pct: minor updates, PDD15 conformance
1268 + compilers/pge: PDD15 conformance
1269 + compilers/tge: PDD15 conformance
1271 + Improve test coverage
1272 + Improve reporting when a step fails; allow abort on failure
1274 + More coding standard conformance, tests, cleanup, speedups,
1276 + Bug cleanup, esp. GC bugs
1277 + Eliminate .imc extension (use .pir)
1278 + Simplify some core config steps to not allow interactive prompting
1284 + Bug fixes (including Coverity IDs 20, 22, 30, 119-122, 124-126, 129-131)
1285 Also various GC, memory, and segfault issues
1286 + Fix & reenable CGP core
1287 + Parrot's -r flag now works again (compile to and execute bytecode)
1288 + Updates to pmc2c & PIR syntaxes
1290 + Minor performance improvements, especially in PGE
1292 + PDD02 "Vtables" - superceded by PDD17
1293 + PDD06 "PASM" - minor updates
1294 + PDD17 "PMC" - add VTABLE syntax, update core PMC struct, restore UnionVal
1295 + PDD19 "PIR" - early review started
1296 + PDD21 "Namespaces" - cleanup
1297 + PDD24 "Events" - draft approved
1298 + PDD25 "Concurrency" - minor updates
1299 + PDD26 "AST" - draft version begun
1300 + PIR tutorials updated
1301 - Languages/Compilers
1302 + Make scheme work with the current calling conventions, other major work.
1303 + Updates to m4, lua, compilers/pirc, languages/PIR, dotnet, tcl
1305 + make -j functional again
1306 + Code cleanup (refactoring, optimizations)
1310 + Performed code review on every PMC
1311 + Modified PMC code generation to use Storable, reducing compile times
1312 + Added a makefile target to generate test coverage data of C sources
1314 + NQP: added lists, for loops, operators, comparison and multiplicative operators
1315 + Announced Kea-CL, Kea Common Lisp, an ANSI Common Lisp implementation
1316 The repository is available at https://rgrjr.dyndns.org/svn/kea-cl/trunk/
1318 + PDD17 "PMCs" - draft approved, the design is complete
1319 + Added more PIR tutorials, see examples/tutorial/00_README.pod
1321 + Many bugfixes, enhancements, documentation, and coding standard updates
1322 + Deprecated PMC constants and other crufty syntax, see DEPRECATED.pod
1323 + Improved icc compiler compatibility for error line reporting
1327 + Lots of code review, many bugs fixed
1328 + Many more code cleanups and compiler warning levels
1329 + Started a new jit engine for 64-bit processors
1330 + Refactored configure process, with tests and new diagnostic options
1331 + Added new CodeString PMC for dynamic generation of PIR code
1332 + More pdd15 support for object metamodel.
1334 + Added NQP ("Not Quite Perl"), a very lightweight Perl 6-like language
1335 + Significant improvements and refactors to PCT (Parrot Compiler Toolkit)
1336 + perl6 passes more spec tests
1337 + Lua works now with a PGE/TGE/PAST-pm based compiler, lives in one pbc,
1338 and the interpreter has same behavior as original.
1340 + Added a committers' HOWTO
1341 + More PIR tutorial examples
1345 - Now, with Seat Belts!
1346 + added makefile targets for Sun lint, BSD lint, and splint
1347 + corrected many errors picked up by these tools
1348 + decorated source code with compiler hints, assertions, and attribute macros
1349 + automated creation of function declarations to prevent common errors
1350 + increased compiler warnings levels
1351 + converted more exceptions to a recoverable form
1353 + updated Lisp, Lua, Perl 6, tcl, regex, Scheme ("Pheme")
1354 + Perl 6 now fetches selected tests from pugs, and even passes some
1355 + PGE modified to handle {*} action subs for top-down and bottom-up parsers,
1356 and to allow grammar subclassing
1357 + HLLCompiler now has better exception, eval, and exit support
1358 + Introduced PCT, a refactor of HLLCompiler and PAST-pm
1360 + PDD15 "Objects" - details added to 'new' and 'getattribute' opcodes
1361 + PDD17 "PMCs" - notes added on instantiation and dynamic extention in PIR
1363 + added Parrot-related text from "Perl 6 and Parrot Essentials" book,
1364 tutorial examples from "Learning PIR" talk, and PDD15 metamodel diagrams
1366 + reduced memory footprint when using named registers
1367 + implemented overridding of vtable methods by PDD15 classes
1368 + improved PDD15 support for 'new', 'instantiate', and others
1369 + added makefile targets to ease core and HLL makefile regeneration
1370 + updated parrot dubugger, "pdb", to allow loading of commands from file
1372 + many bugfixes, enhancements, documentation, and coding standard updates
1376 + Updated Lisp, Lua, PHP ("Plumhead"), Python ("Pynie"), ABC,
1377 WMLScript, and Tcl ("ParTcl").
1378 + Perl 6 passes all of the sanity tests.
1379 + PGE supports latest Perl 6 grammar syntax. Perl 6, Python
1380 ("Pynie"), and ABC parsers updated to match.
1381 + Updated PHP ("Plumhead") to Antlr 3.0.
1382 + Lua added the beginnings of a PGE/TGE based compiler (not yet
1383 replacing the Perl/Yapp compiler).
1384 + Lisp updated for current features, added a test suite.
1385 - Core Implementation:
1386 + Filled in features and backward compatibility for PDD 15 objects.
1387 New object metamodel passes 85% of old test suite.
1388 + GCC API symbols are visible externally only when explicitly exported.
1389 + Added generated GCC compiler attributes to increase warnings, and
1390 cleaned up resulting warnings.
1391 + Code cleanup efforts and fixed memory leaks by the cage cleaners,
1392 resulting in notable speed increases.
1394 + Updated Parrot distribution to Artistic License 2.0, from dual
1395 Artistic 1/GPL license.
1396 + SDL examples brought up-to-date with current features.
1400 + even more refactorings and improvements in configuration system
1401 + improved tests and documentation for configuration system
1403 + Updated abc, PHP ("Plumhead"), Lua, Tcl
1406 + new PMC PDD draft partially completed
1408 + continued implementation of PDD 15 (Objects)
1409 + minor garbage collector and memory management improvements
1410 + several memory leaks resolved
1411 + extended support for compilers other than GCC
1412 + improved C++ compiler compatibility
1413 + enhanced support for Solaris, non-MSVC Win32, and other platforms
1418 + IMCC: added documentation for C-based Parrot Calling Conventions,
1419 refactorings and bug fixes
1420 + PGE: new perl6regex front end reflecting recent S05 syntax changes
1421 + PIRC: new prototype PIR parser
1423 + Updated Lua, PHP ("Plumhead"), BASIC, pynie
1424 + Lua implements environment
1426 + PDD15 "Objects" - details added, and draft approved
1428 + Added guidelines for PMC documentation
1430 + PDD15 implementation is largely complete, including role-based composition,
1431 introspection, and C3 method resolution order
1432 + new Exporter PMC for importing globals between namespaces
1433 + new string utilities for radix conversion
1434 + PCCINVOKE and Parrot_PCCINVOKE allow calling using the full Parrot Calling
1435 Conventions from PMCs and C code respectively
1437 + Refactorings and improvements in test coverage for 'Configure.pl'
1439 + many bugfixes, enhancements, and code cleanup
1440 + added example subversion config file
1441 + extended support for gcc, icc, and other compilers
1442 + extended support for Solaris and other platforms
1448 + IMCC: Parrot calling conventions now available between two C PMCs (PMINVOKE)
1449 + PGE: Match object improvements
1450 + smop: added Attribute and Class PMCs
1451 + HLLCompiler: improvements for interactive mode
1453 + extended binding to a list of variables
1455 + Updated Lua, PHP ("Plumhead"), Tcl ("ParTcl"), Ruby ("Cardinal")
1456 + Update PIR, regex, Zcode
1457 + New language: Pynie - a Python compiler for Parrot
1458 + Lua implements require and many other ops, improved regex support
1461 + PDD01 "Overview" - updated architecture and platform information
1462 + PDD15 "Objects" - details on roles, objects, and classes added
1463 + PDD22 "I/O" - added async ops and Status PMC details
1465 + Added guides for Metacommitter, Relase Manager, and Cage Cleaner roles
1467 + Object, Class, Role, and Attribute PMC implementation has begun
1468 + Perl 5 module "Parrot::Embed" now compiles and links on all platforms
1470 + Major improvements in test coverage for 'ops2c.pl'
1472 + New utility: Crow, a template processor
1473 + New library module: Config/JSON for reading/writing JSON files
1474 + many bugfixes, enhancements, and coding standard updates, code cleanup
1479 + IMCC: Parrot calling conventions now available in C PMCs, allowing
1480 named, optional, slurpy, and flat parameter passing
1481 + PGE: extended support for Perl 5 Regexes
1482 + smop: prototype object model implementation
1483 + hllcompiler: refactored to run a configurable set of compilation stages
1485 + redesigned assign/binding to support Perl 6 binding semantics
1487 + Updated Lua, PHP ("Plumhead"), Tcl ("ParTcl"), perl6, perl5
1488 + New language: PIR - a PGE-based implementation of Parrot PIR
1489 + perl6 now supports binding (':=') and 'join'
1490 + lua generates tail calls, and supports its own regex flavor (PGE-based)
1491 + Pheme still works, huzzah!
1493 + PDD21 "Objects" - rewritten
1494 + PDD22 "I/O" - updated and 'TODO' tests added
1496 + Interface stability classification standards approved
1497 + Roles and Responsibilities documented approved
1498 + Official 'drafts' directory created (was 'clip')
1500 + More NameSpace and OS PMC methods implemented
1501 + Parrot executable fullname and basename now available in PIR/PASM code
1502 + new 'chomp' library function
1504 + Major improvements in test coverage for 'ops2pm.pl'
1506 + many bugfixes, enhancements, and coding standard updates
1507 + extended support for Sun Workshop Compilers
1508 + Parrot now builds on PocketPC platform
1513 + HLLCompiler: added tracing options, modified api
1514 + PGE & TGE bugfixes and updates
1516 + added global and lexical variable support
1517 + added looping constructs, arrays, hashes
1519 + Updated PHP ("Plumhead"), Tcl ("ParTcl"),
1520 forth, perl6, lua, abc, APL, WMLScript, punie
1521 + ParTcl is passing > 24.9% of Tcl cvs-latest test suite
1522 + perl6 now supports hashes, arrays, method calls, arity-based
1523 multisubs, quoted terms, ranges (non-lazy), try blocks, $!
1525 + PDD01 "Overview" - updated
1526 + PDD22 "I/O" - rewritten and approved
1528 + Converted Perl 5 Regex tests to PIR, with notable speedup
1529 + Added tests for opcodes, compilers, languages, and coding standards
1531 + Major improvements in test coverage for 'pmc2c.pl'
1533 + many bugfixes, enhancements, and coding standard updates
1534 + extended support for non-core platforms including Cygwin, Tru64
1538 - New languages: PHP ("Plumhead"), Forth
1539 - Updated languages: Ruby ("Cardinal"), Tcl, Lua
1540 - Remove old Python implementation from Parrot repository; the new Python
1541 language code is hosted at http://pirate.tangentcode.com
1543 + PGE updated with more expressions, latest changes to S05
1544 + new Perl 6 grammar compiler
1546 + Perl 5 module "Parrot::Embed" allows easy embedding of a Parrot
1547 runtime into a Perl 5 program
1549 + new :init pragma for subs that must run before the main function
1550 + new :vtable pragma to identify subs that override PMC vtable methods,
1551 eliminating the need for special subroutine names
1552 + PIR parser/compiler does not stop on first syntax error
1553 + Vanilla register allocator ("register alligator") greatly improves
1554 performance compiling large functions
1555 + Eliminated limit on number of PIR macros
1557 + hash lookups return null instead of None for missing keys
1559 + PDD13 "Bytecode files: format and manipulation" - new
1560 + PDD10 "Embedding" - new
1561 + PDD25 "Concurrency" - rewritten
1562 + PDD15 "Objects" - new section on redesign requirements
1563 + PDD07 "Coding standards" - significant updates and automated tests
1565 + Many many more new tests
1567 + autoconf compatible install options
1569 + Namespace refinements
1570 + Coroutine improvements
1571 + An impressive swarm of other bugfixes and enhancements
1575 - New languages: Ruby ("Cardinal"), Javascript ("ecmascript")
1576 - Updated languages: Tcl, dotnet, bc, Pheme, Punie, WMLScript
1577 - Updated compilers: PGE, TGE
1579 + ".loadlib" directive expresses dependencies
1580 + ".namespace" with no parameter goes to HLL root
1581 + lexer is reentrant (reentrant grammar in progress)
1582 - Namespace improvements:
1583 + new suite of opcodes to access namespaces and globals
1584 ("find_global" and "store_global" will be phased out)
1585 + namespace '' no longer means HLL root
1586 - Design document updates:
1587 namespaces (pdd23), basic types (pdd17), embedding
1588 - Updated tool requirements for developers:
1589 flex 2.5.33, bison 2.1, perl 5.6.1
1590 - New to-do list for people new to Parrot:
1592 - The usual plethora of bugfixes and enhancements
1596 - unicode subroutine names
1597 - hierarchical class names finished including MMD support
1598 - new dotnet CLI to PIR translator
1599 - improved TGE code and compiler
1600 - APL: vector handling
1601 - new STM branch in the svn repository
1602 - the usual bugfixes and enhancements
1606 - hierarchical class names
1609 - understands simple vector ops, strings
1610 - demonstrates use of Unicode in Parrot
1611 - pgc, a compiler for rules and operator precedence parsers
1612 - Major redesign and improvements for PGE
1613 - compilers understand named parameter options
1614 - :ratchet option implemented to support non-backtracking quantifiers
1615 - TGE (tree grammar engine) for tree transformations
1616 - tgc, tree grammar compiler
1618 - support for many operators, lexical scalars, regex matches
1619 - new pheme (Parrot scheme) compiler
1623 - namespaces partially implemented
1624 - rulec, Perl 6 rule compiler
1625 - PGE improvements including return values for closure
1626 - parts of a Perl 6 parser based on PGE
1627 - complex trigonometric methods
1628 - type of Sub PMC is now overridable by HLL
1630 - many bug fixes and improvements
1634 - improved PPC and x86 JIT support including JIT compilation
1635 of very simple PASM/PIR subroutines
1636 - preliminary libreadline support
1637 - better trace and debug features
1639 - META.yml to support proper indexing on CPAN
1640 - new opcode: hcf (in "my_ops" in dynamic op library)
1641 - new File pmc for file specific ops (is_dir, is_file, copy, rename...)
1642 - named arguments and parameters (both :named("") and => syntaxes)
1643 - ongoing config improvements
1644 - tons of bug fixes and other small improvements - too much to list all
1648 - Installation: 'make install' is using standard locations now
1649 (/usr/local is the default --prefix)
1650 - Produce static and shared libraries on some systems
1651 - Configure system rearragement
1652 - OS pmc started (mkdir,cd,cwd,rm,umask,stat)
1654 - Test files are now testable with 'prove'
1655 - Smoke (and smokej) outputs progress
1656 - PIR supports: I = A < B (>,<=,>=,==,!=)
1657 - Add support for octal number constants
1659 - almost finish [string]; start [file]
1660 - add build tool for generating inline'd tcl builtins from templates.
1661 - Jako updates: NCI, subroutines, global variables and constants all work.
1666 - New lexical handling and closure support including better
1667 introspection for caller and outer
1668 - PGE (Parrot Grammar Engine) provides now compilers for P6Rule,
1669 P6Grammar, P5Regexp, and Glob
1670 - ca. 1000 new tests including 800 for Perl5 regexp
1671 - Improved unicode charset and encoding support
1672 - Calling conventions for exception handlers
1673 - Punie (Perl 1) uses TGE (Tree Grammar Engine) to convert from
1674 PGE match objects to AST via two steps of tree transformation grammars
1675 - New languages: amber and lua
1676 - The usual code fixes, cleanup, and improvements, including an overhaul
1677 of the config and test framework
1681 - Variable sized register frames are finished. Each subroutine gets
1682 the amount of registers that it actually needs. No more spilling.
1683 - Vastly improved PGE (Parrot Grammar Engine) including shift-reduce,
1684 precedence-based expression parser and support for matching of
1685 bracketed text delimited by e.g. ()[]{}'"
1686 - uniccode character classification (is_upper ...)
1687 - support for heredoc syntax in assembler
1688 - improved examples, basic JSON support
1689 - debian packaging support
1690 - the usual improvements, bug fixes, and cleanup
1691 - test count exceeds 3000
1695 - New calling conventions implemented: see PDD03 for details
1696 - Merge multiple Parrot bytecode (PBC) files into a singe PBC file
1697 - 'make smoke' target going beta
1698 - bc now supports if statements, comparison ops, prefix inc/dec
1699 - ParTcl adds [lassign], [switch] (partially); [expr] converted to a compiler
1700 - Many exciting doc updates, tests, and bugfixes, too numerous to mention
1704 - Dynamic classes now compile on Windows (including ParTcl)
1705 - New Super PMC allows easy access to superclass methods
1706 - Implement C3 method resolution order (just like Perl 6 & Python)
1707 - ParTcl has new PIR-based parser and passes more Tcl tests
1708 - added character class support in Globs to PGE
1709 - added language implementations of unlambda, Lazy-k
1710 - many bugfixes, including GC and memory leaks
1711 - the new calling scheme continued to evolve in branches/leo-ctx5
1715 - new call scheme: docs/pdds/pdd03_calling_conventions.pod
1716 - partial implementation of the new calling conventions
1717 PASM only, don't mix PIR foo() call syntax with the new scheme
1718 - grammar and rule support in PGE - the Parrot Grammar Engine
1719 - TCL passes >10% of the tcl test suite
1720 - the usual bugfixes and improvements
1724 - better HLL support (short names for object attributes, and
1725 .HLL and n_operators pragmas)
1726 - string encoding and charset can now be set independently
1727 - experimental mmap IO layer for slurping files
1728 - distinct debug and trace flag settings
1729 - glob support in PGE
1730 - new character classification opcodes and interfaces
1734 - parrot repository is now under subversion
1735 - MMD (Multi Method Dispatch) enhanced
1736 - new unary and infix opcodes that return new result PMCs
1737 - dynamic scalar PMCs inherit now almost all from Parrot core PMCs
1738 - more unification of PMCs and ParrotObjects
1739 - tailcalls for functions and methods
1740 - PGE (Parrot Grammar Engine) reworked
1741 - Pugs creates Parrot code and Pugs is a registered compiler now
1742 - new languages/lisp
1743 - the usual bug fixes and improvements
1747 - New string handling code. Strings now have charset and encoding
1748 - Parts of a generation garbage collector
1749 - Better Python code, separated in dynclasses
1750 - Parrot Grammar Engine
1751 - Improved test coverage and documentation
1755 Parrot 0.1.1 is an intermediate release with tons of updates and fixes.
1756 - Python support: Parrot runs 4/7 of the pie-thon test suite
1757 - Better OS support: more platforms, compiler, OS functions
1758 - Improved PIR syntax for method calls and <op>= assignment
1759 - Dynamic loading reworked including a "make install" target
1760 - MMD - multi method dispatch for binary vtable methods
1761 - Library improvement and cleanup
1762 - BigInt, Complex, *Array, Slice, Enumerate, None PMC classes
1763 - IA64 and hppa JIT support
1764 - Tons of fixes, improvements, new tests, and documentation updates.
1765 A lot is unfinished and keeps changing. Nethertheless Parrot is stable
1766 and usable at the surface, while internals are moving.
1769 - "Ladies and gentlemen, I give you... objects!"
1770 - Huge documentation overhaul
1771 - More supported platforms, s. PLATFORMS
1772 - Basic thread support for pthread based architectures
1773 - Basic event handling for timers and signals including:
1774 - PASM callbacks for NCI (native C) functions.
1775 - Improved platform configuration
1776 - COW stacks now working, stacks code redone
1777 - Structure handling vastly improved
1778 - Random PMC and rand primitives
1779 - Better subroutine call syntax in PIR
1780 - Make PIR subroutines compliant with pdd03
1781 - Improved profiling (DOD, GC timings)
1782 - Hash code improvements, incl. random key order support
1783 - Experimental freeze/thaw code for some PMC types
1784 - IO improvements for buffered layer and Win32
1786 - String bitwise vtables
1788 - Support for JIT, where malloced memory isn't executable
1789 - Priority DOD scheme for objects that need timely destruction
1790 - Improved byte code loading (e.g. onLoad functions)
1791 - Language updates: forth, Perl 6/P6C, m4
1792 - Libraries: Getopt_Long, SDL, Dumper, Sort
1794 - Unified imcc and parrot test handling
1795 - Many new tests (make test reports 1386 tests)
1796 - Numerous bug fixes
1799 - The Big Move: Parrot source and build files rearranged into sub dirs
1800 - Build imcc as parrot
1801 - Objects more finished
1802 - Delegate vtable methods to byte code
1803 - Binary multi-method dispatching
1804 - Isa and does methods for PMCs
1805 - Call byte code from C
1806 - Start of extension interface
1807 - Experimental struct handling
1808 - Catch access to NULL PMCs
1809 - Experimental network socket interface code and opcodes
1810 - IO fixes and improvements
1811 - Dynamic opcode libraries
1812 - Fix-assigned opcode numbers
1813 - Argument flattening for function calls
1814 - More native call interface (NCI) signatures
1815 - Ncurses, postgres, and pcre interface libraries
1816 - Forth language is vastly improved
1817 - BSD and Win32 build improvements
1818 - Many new tests and fixes
1821 - This number intentionally left blank
1825 - Dynamic PMC registration
1826 - Trial exception system
1827 - Beginnings of object system
1830 - I/O system improvements
1832 - Documentation for basic PMC types
1833 - IMCC support of Parrot Calling Conventions
1834 - Runtime loading of chartypes (and other string improvements)
1835 - Conditional breakpoints
1836 - Dramatically accelerated sweeps for finalizable objects
1837 - Small PMCs (PMCs split into core and extensions)
1838 - Loadable bytecode packfiles
1840 - Sub variants that deal with the stack correctly
1841 - Switched runops core
1842 - Line numbers in warnings
1843 - Environment access
1844 - Many documentation cleanups
1845 - Conversion to CPS style!
1846 - BASIC debugger and many other wacky features
1847 - Filename, line number parsing support in IMCC
1852 - some more benchmarking
1854 - optimized math ops
1855 - intersegment branches
1856 - more complete use of PObjs
1857 - beefed up packfiles
1858 - sub/continuation/coroutine fixes
1859 - better NCI (native calling interface)
1860 - many imcc improvements
1865 - Native function calling interface (Dan)
1866 - Stack/list aggregate rewrite (Leo)
1867 - Scratchpads (Jonathan Sillito)
1868 - Preliminary DotGNU support -- type conversion ops (Gopal V + Leo)
1869 - Buffer/PMC unification (Leo)
1870 - stabs debugging support for JIT (Leo)
1871 - Jako overhaul (Gregor)
1872 - Optional Lea allocator (Leo)
1873 - Parrot sprintf (Brent)
1875 - PMC Properties (Dan)
1876 - Various JIT improvements (D. Grunblatt + Leo)
1877 - Extensible packfiles (Juergen)
1878 - Restructured PMC hierarchy (Leo)
1879 - Real Scheme (Juergen)
1883 - Several new grammars and a BNF -> perl5 and perl6 converter (Jeff)
1884 - Working Perl 6 REs (Sean)
1885 - Keyed Access (Tom Hughes et al)
1886 - New PMCs (Alberto et al)
1887 - Better Documentation
1889 - GC acceleration (Mike Lambert)
1890 - Lexical scope (Jonathan Sillito)
1896 - Perl 6 Grammar and Compiler (Sean)
1897 - Subroutines, coroutines, and continuations (Melvin)
1898 - GC improvements (Peter Gibbs, Mike Lambert)
1899 - Global variables (Melvin)
1900 - Intermediate bytecode compiler (Melvin, Angel)
1901 - And much, much more.
1905 - New assembler that support keyed types (Jeff)
1906 - New macro layer, allowing constants (Jeff)
1907 - New Configure.pl (Brent)
1908 - Changes to bytecode format, endian issues resolved (Melvin)
1909 - GC improvements and bug fixes (Peter Gibbs, Mike Lambert)
1910 - JIT compiler rewrite (Jason and Daniel)
1911 - Parrot assembler in Parrot (Daniel)
1912 - Parrot debugger (Daniel)
1913 - BASIC polished, Eliza.bas is new (Clint)
1914 - Cola compiler committed and working, with limited OOP (Melvin)
1915 - Keyed aggregates (Steve Fink)
1916 - Global ops (Melvin)
1917 - Compile-time speedup (Melvin)
1918 - Much documentation
1920 - Contributed tetris and lzw files
1921 - And many more, from the cast of thousands
1926 - Perl Scalar support in PMCs
1927 - Array and Hash types almost ready for prime-time
1928 - Internal support for keyed types
1929 - EMACS editing mode
1931 - New Language - BASIC
1932 - Regular expression compiler
1934 - Many, many bug fixes, enhancements, and speedups
1938 - Arena-based memory allocation system
1941 - "Predereferencing" mode - ./parrot -P - 22% speedup
1942 - JIT compiler - ./parrot -j
1943 - Parrot now builds warnings-clean on many platforms
1944 - Many more PMC methods implemented
1945 - Regular expression operations
1947 - Basic support for embedding Parrot in other programs
1949 - Added PDDs to distribution
1953 - Added an assembly optimizer
1954 - Improved string encoding/type support
1956 - Source reformatting
1957 - Major refactoring in packfile library
1958 - More Miniperl functionality
1959 - New PMC "clone" operator
1960 - Beginnings of key-based access to PMCs - arrays and hashes
1961 - MOPS comparisons in examples/mops/
1966 - Perl base scalar types implemented
1967 - A new minilanguage, Scheme
1968 - Much improved documentation
1969 - Register stacks pushing and popping
1970 - User stack pushing, popping and rotating
1971 - Jako updates: subroutines, more example programs, optimizations
1972 - test_prog renamed to 'parrot'
1974 - Added features to the assembler: @ for current location, and global
1976 - Build tweaks for VMS
1977 - Bytecode typing clean-ups
1978 - More platforms: OS X, HPUX, OS/2
1979 - The proliferation of runops cores reduced to one fast and one slow one
1980 - Opcode tracing, bounds checking, profiling
1981 - Vastly improved string support, with separation of encoding and
1984 - Multiple interpreter creation support - the beginnings of threading
1985 - Much better resource handling - the beginnings of GC
1989 - Parrot now works on all core platforms
1990 - A large number of tests, in the standard Perl testing framework
1991 - A new minilanguage (Jako) which compiles to Parrot assembly
1992 - Documentation about the assembly language (docs/parrot_assembly.pod)
1994 - Separate modules for assembly (Parrot::Assemble) and bytecode
1995 manipulation (Parrot::PackFile::*, packfile.c)
1996 - Assembler completely rewritten
1997 - Better operand-type guessing in the assembler
1998 - Assembler support for '\n' etc. in string constants
1999 - Code reformatted to match the coding standards
2000 - New ops for register-constant INTEGER comparisons
2001 - Macro expansion in the assembler
2002 - IVs and NVs renamed to more friendly INTVAL and NUMVAL
2003 - Hard-coded pack("") formats removed
2004 - Better handling of floating-point numbers in assembler
2005 - Moved floats to constant table (fixing many alignment issues)