Version 4.7.4 (13 February 2011)
 * Dramatic speed improvement for long sentences (hash table fix).
 * Fix: crash on certain sentences, when fat-link parsing enabled.
 * Fix: fatal error introduced in last version (combinatorial explosion).
 * Fix: mem leak introduced in last version (combinatorial explosion).
 * Assorted fixes to the Boolean SAT solver.

Version 4.7.3 (7 February 2011)
 * Fix: "level" as indefinite noun: "... at knee level".
 * Enable max disjunct cost as a controllable parser parameter.
 * Don't just give up on combinatorial explosion, show something!

Version 4.7.2 (6 January 2011)
 * Fix: crash on certain sentences, when fat-link parsing enabled.
 * Fix: 3 corrupted nouns in words.n.1
 * Fix: minimize cpu spin if constituent processing and-list overflows.

Version 4.7.1 (11 December 2010):
 * Fix: dictionary: Add "x" as synonym for "times".
 * Fix: compilation failure due to lack of termios support on Windows.
 * Fix: if not set, then force-set locale to UTF-8 in the java library.
 * Fix: Explicitly include <stddef.h> for Windows builds.
 * Fix: "John imagines himself lost".
 * Fix: predicative adjectives w/misc verbs: "You are driving me crazy"
 * Fix: "judge innocent", etc. 
 * Fix: many, many conjoined present tense verbs.
 * Fix: conjoined verbs with negations.
 * Fix: "to" as post-nominal modifier: "the inability to laugh"

Version 4.7.0 (12 September 2010):
 * Fix: hunspell configuration on Fedora (bugtracker issue 47)
 * Fix: 'turn' with adjective: "She turned him green" from wingedtachikoma
 * Fix: comma-conjoined modifiers: "It tastes bitter, not sweet."
 * Fix: conjoined question words: "When and where is the party?"
 * Fix: recognize short, capitalized words (Los, La, etc.).
 * Treat colon as synonym for is: "The answer: yes."
 * Fix: begin with prepositions: "It all began in Chicago."
 * Fix: "What does it come to?" and related.
 * Fix: null infinitive: "I'd like to, I want to."
 * Fix: "Because I said so."
 * Fix: "sure" as preverbal adverb: "It sure is." 
 * Fix: Gerunds with determiners: "a running of the bulls"
 * SJ link for conjoined nouns/noun phrases.
 * Sort linkages according to whether fat linkage was used.
 * Add flag to enable use of fat linkage during parsing.
   (Fat links now disabled by default).
 * Add male/female gender tags to misc nouns.
 * Fix: misc optionally transitive verbs: mix, paint, boot
 * Fix: word order: "look about fearfully", "look fearfully about", around
 * Fix: recognize simple fractions
 * Fix: "is" with uncountable nouns: "there is blood on your hands"
 * Fix: Roman numeral suffixes e.g. "Henry VIII"
 * Fix: regression in dates followed by punctuation. "In the 1950s, ..."
 * Fix: verbs drank, drunk are optionally transitive.
 * Fix: regression: "all the X", X can be plural or mass.
 * Fix: verbs paint, color may be ditranstive: "paint the car bright green"

Version 4.6.7 (16 April 2010)
 * Fix: configure handling of --enable-hunspell (bugtracker issue 46)
 * Fix: conjoined modifier phrases: "the black and white cat sleeps."
 * Fix: MSWindows+MingGW compilation issue.
 * Update msvc9 Microsoft Visual C 2008 project, from Boris Iordanov.

Version 4.6.6 (19 March 2010)
 * Minor fixes to handling of units.
 * Fix: MSWindows+Cygwin/MingGW compilation issues.
 * Use pkgconfig for editline (from Vincent Untz)
 * Fix: "I want it back."
 * Additional titular prefixes, suffixes: Maj. Ph.D. 
 * Add code to detect dictionary version number.
 * Fix: MS VC missing strdup() function.
 * Add AutoIt3 bindings from JRowe

Version 4.6.5 (3 November 2009)
 * Fix: Superlatives without preceding determiners ("... likes you best")
 * Fix: Take more care in distinguishing mass and count nouns.
 * Fix: Old bug w/relative clauses: Rw+ is optional, not mandatory.
 * Provide tags identifying relative, superlative adjectives.
 * Remove BioLG NUMBER-AND-UNIT handling, its been superceeded. 
 * Fix handling of parenthetical phrases/clauses.
 * Fix: handling of capitalized first words ending in letter "s".
 * Fix: support "filler-it" SF link for "It was reasoned that..."
 * Fix: certain WH-word constructions: "I did not know why until recently"
 * Fix: go: "there goes the greatest guy ever"
 * Fix: opening coordinating conjunctions: "And you can also ..."
 * Configurable Hunspell spell-checker dictionary location.
 * Fix: Misc ordinal usage.
 * Add support for aspell spell-checker.

Version 4.6.4 (11 October 2009)
 * Restore nouns starting w/letters x-z, elided in version 4.5.9 ff.
 * Add support for single-word interjections/exclamations!
 * Fix: sometimes command line client fails to show all valid linkages.
 * Misc fixes: such_that, upon, acted.v
 * Fix: impersonal "be" linking to passive participle.
 * Fix: handling of capitalized first words.
 * Fix: duplication of certain parses involving transitive verbs.

Version 4.6.3 (4 October 2009)
 * Fix compilation bug on FreeBSD.
 * Fix: allow MX link to post-nominal ", to be ..., " 
 * Fix: add idiom "time and again"
 * Fix: another BioLG regression in handling of possessives.
 * Fix: handling of period at end of number at end of sentence.
 * Fix: Capitalized words ending in s at start of sentence.
 * Use corpus-statistics-based ranking by default, if available.
 * Fix difficulties in build of corpus statistics module.

Version 4.6.2 (21 September 2009)
 * Fix: "come across as authoritative".
 * Improve Java location guessing in FreeBSD
 * Fix for assert triggered by long sentences.
 * Fix: long sequence of periods treated as unknown word.
 * Add informational print showing dictionary location on startup.
 * Remove duplicated {@MV+} in tend.v
 * Automatically resize the display size to fit the current window size.
 * Fix handling of punctuation at the end of a capitalized word.
 * Fix misc verbs acting as adjectival modifiers: e.g. "given", "allied"
 * Fix bug in BioLG code regarding the handling of possessives.
 * Fix a (rare) crash in sentences with many conjunctions. 
 * Fix a crash involving long sequences of UTF8 punctuation marks.

Version 4.6.1 (31 August 2009)
 * Stop printing annoying warning when !vars are used.
 * Fix missing dict file units.2 problem
 * Fix compilation bug on FreeBSD.

Version 4.6.0 (29 August 2009)
 * Avoid used of bzero, add missing include directives (MacOSX problem)
 * Reclassify a number of "medical" prepositions as adverbs.
 * Add approx 100 adverbs & 300 adjectives.
 * Add approx 250 verbs.
 * Add approx 300 nouns.
 * Add misc units.
 * Add misc European connector words/patronymics.
 * Reclassify 100's of transitive verbs as optionally-transitive.
 * Add distinct tokenization step ("sentence_split") to public API.
   This last change forces the minor-version-number bump.

Version 4.5.10 (25 August 2009)
 * Be sure to link with -lm

Version 4.5.9 (25 August 2009)
 * Modify error messages to indicate that they are from link-grammar.
 * Add missing Java files that were forgotten last time around.
 * Add greeting to command-line client startup.
 * Print disjunct cost also, when requesting disjunct printing.
 * Add missing color names as mass nouns.
 * Fix: Reclassify musical instruments: "He plays piano" 
 * Add experimental word-clustering system.
 * Add CMake build file
 * Fix: "It takes longer than that."
 * Fix: "He has done very well."
 * Fix: a dozen optionally transitive verbs (swim, kill, etc.)
 * Fix: "He's out running."
 * Fix: "suddenly" is a "manner adverb", not a clausal adverb.
 * Fix: Use Pg links to gerunds: "He feared hitting the wall."
 * Fix: assorted numerical-range bugs.
 * Fix: prep modifiers with distances: "It is a few miles out"
 * Fix: Spelled-out dates: "It started in nineteen twelve"
 * Fix: Misc date, time expression parsing e.g "Zero hour is here."
 * Fix: Misc words, "ordered list", "screened out"
 * Fix: Post-fixed numbers can act as determiners.
 * Fix: "We bought the last 50 ft. of cable."
 * Fix: opening directives to imperatives: "Finally, move it back."
 * Fix: Improved simple equation parsing support.
 * Fix: Add misc fixes from BioLG that were previously overlooked.
 * Fix: "favorite" can take determiner "a" ("a favorite place")
 * Fix: assorted clausal complements: "The emperor ordered it done."
 * Fix: ordinals: "First on our list is ..."
 * Fix: verb modifier "some of the time", "most places"
 * Fix: Sit, stand take modifiers: "he stood still"

Version 4.5.8 (2 July 2009)
 * Fix: 'than anticipated', 'than was anticipated', etc.
 * Fix: 'saw the wood'
 * Fix: sometimes commas are used as if they were semicolons.
 * Fix: 'We have quite enough work already, thank you!'
 * Fix: allow 'and' as conjunction in entity names.
 * Fix: 'I stared him down', 'They shouted him down', 'booed off'
 * Fix: 'sound him out', 'look him over'
 * Fix: 'Somewhere in the distance'
 * Stub out list of names given to both men and women, to avoid duplication.
 * Fix: 'I think so, too'
 * Fixes for compilation under Cygwin.
 * From Boris Iordanov: fixes to JSON java code.
 * From Boris Iordanov: new java remote client code.
 * Fix: Biological texts commonly have adj-noun-adj-noun chains

Version 4.5.7 (4 June 2009)
 * Fix 'make install' for windows (abi bug 12049)
 * Fix multi-threaded bug when TRACK_SPACE_USAGE is defined.
 * Add './configure --enable-mudflap' just for fun...
 * Fix: "Walk tall", "Think quick"
 * Fix: "... part no. 1234-56A"
 * Fix regression from BioLG merge: "It cost $14 million."
 * Fix come/came: "The dog came running..."
 * Fix year abbreviations: "He drove a souped-up '57 Chevy"
 * Fix sit, stand: "The dog stood still"
 * Fix act up, act out: "He is acting out." "The motor is acting up."
 * Fix notoriously, poorly: "The store was poorly stocked".
 * Fix: "strong" can be adverb
 * Add support for recognizing basic time zones during parsing.
 * Fix: verbs acting as adjectival modifiers: "a very politicized deal."
 * Fix: ".. nearly so well", "...almost so well".
 * Fix financial ranges: "It will cost $10 million to $20 million to build."
 * Expand handling of capitalized words that appear in entity names.
 * Expand the list of characters that are recognized as quotes.
 * Support usage of yes, no as sentence openers.
 * Better support for directives, commands.
 * Fix: "Ash Wednesday", "Fat Tuesday", etc.
 * Fix: post-verbal adj: "she wiped the table dry"
 * Fix: wish: "she wished me a happy birthday"

Version 4.5.6 (24 May 2009)
 * Bugfix: fix non-thread-safe usage.
 * Changes to enable MinGW/Windows to compile.
 * Update of MSVC6 build files
 * Fix: pizza, fries, chopsticks.
 * Export word-sense database to Java apps.
 * Fix: "Was the man drunk or crazy or both?"

Version 4.5.5 (10 May 2009) includes the following changes:
 * Bugfix: crash for zero-length sentences.

Version 4.5.4 (9 May 2009) includes the following changes:
 * Fix: "sleep in":  "A bed is something you sleep in."
 * Fix: "drinking": "Let's go drinking."
 * Fix go+bare infinitive: "Let's go shop", "Let's go swim"
 * Fix: "Let's go for a swim." "Let's go for a smoke".
 * Fix: "Let's not" "Let's not go" "Let's not cry"
 * Fix: ... is <bare-infinitive>:  "All he ever does is complain."
 * Fix: "You will die young/happy/unhappy"
 * Fix: "You should exercise to stay fit."
 * Fix: "We danced 'til dawn."
 * Fix: "tell <direct-object> off": "She had told him off."
 * Bugfix: sometimes spell checker would run even if turned off.

Version 4.5.3 (14 April 2009) includes the following changes:
 * Haste makes waste! Revert a recent 'fix'.

Version 4.5.2 (14 April 2009) includes the following changes:
 * Use re-entrant version of mbtowc in all code.
 * Fix run-time breakage on Mac OSX and FreeBSD.

Version 4.5.1 (13 April 2009) includes the following changes:
 * Fix Assertion failed: negative constituent length!
 * Fix build break for Mac OSX.
 * Force use of UTF-8 locale in the command-line tool.

Version 4.5.0 (10 April 2009) includes the following changes:
 * Hack around missing SQLite3 pkgconfig on MacOS
 * Fix adverbs: 'The motor ran hot', 'the door swung wide open', etc.
 * Fix: 'at risk of breakdown', 'under threat of fire'
 * Add regular-expression-based word guessing, from BioLG project.
   This provides support for many scientific/biomedical terms.
 * Add spell-guessing for unknown words. 
 * Fix UTF8 support to be correctly thread-safe.
 * BioLG: fix post-numbering: 'it started on day one'
 * BioLG: add number ranges: 'it takes 2 to 3 times the effort'
 * BioLG: assorted adverb fixes, typical of scientific prose.
 * BioLG: initiate, attach, localize etc are optionally transitive.
 * BioLG: allow fork, branch, splice, export, etc to take particles.
 * BioLG: extended use of Greek letters in biomedical text.
 * BioLG: support parsing of Roman numerals.
 * BioLG: support Greek-letter-number combinations.
 * Fix: 'she was singing', etc.
 * Enable WordNet word-sense identification based on syntactical usage.

Version 4.4.3 (11 March 2009) includes the following changes:
 * Look at JAVA_HOME to guess location of jni.h
 * Add dictionary maintenance utility script.
 * Add prototype German dictionary.
 * Fix sentences containing measurements, lengths, speeds. etc.
 * Add 1400 new adjectives, many of scientific origin.
 * Add 250 international currencies, including special utf8 symbols.
 * Performance optimization in sentence tokenization.
 * Add 1100 male, female given names (from Bruce Wilcox).
 * Cleanup parsing of "in-" date expressions, e.g. "in the 1940's".
 * Cleanup of assorted compiler warnings.
 * Fix handling of special utf8 characters in dictionary.
 * Fix hang when parsing certain utf8 input strings.
 * Make sure that most strings in the API are declared const char *
 * Add option to command-line client to print disjunct strings.

Version 4.4.2 (15 January 2009) includes the following changes:
 * Fix: 'The keys are gone', 'It is a gone desire'
 * Fix: 'He poured me a glass', 'He wired me the money', etc.
 * Initial rough-in of corpus statistics based parse ranking.
 * Initial rough-in of corpus-guided word-sense identification.
 * Fix for googlecode bugs 38, 39 (Java, Ruby failure to load)
 * Add new API routine to return disjunct string.

Version 4.4.1 (15 December 2008) includes the following changes:
 * Balance the dictionary tree; this speeds word-lookup slightly.
 * New MSVC6 build files from Evgenii Philippov.
 * Fix java server classes to pass along the link-grammar version number.

Version 4.4.0 (7 December 2008) includes the following changes:
 * fix: recognize curly-single-quote ’ where straight quote can be used.
 * recognize and explicitly ignore emoticon types.
 * Include MSVC6 build files.
 * Apply patch needed for Ruby bindings.
 * fix: "Where did they come from?", per Viswanath IIIT
 * fix: "Where did they go to?"
 * fix: "It gives me peace of mind."
 * fix: many, many incorrectly identified mass nouns.
 * fix: ladle.v "molten hot" "piping hot"
 * fix: "It's a shame that...", "The crux of the plan is that..."
 * Performance improvements (about 11%) to prunce.c from Bruce Wilcox
 * fix: "He eats with me nightly."
 * Add new public api function: linkgrammar_get_version()
 * MSVC9 build files from Borislav Iordanov
 * Java network-efficient client-server classes from Borislav Iordanov

Version 4.3.9 (8 October 2008) includes the following changes:
 * Issue 13: "John is altogether amazingly quick."
 * Nonstandard spelling "unequivocably"
 * Dictionary fixes for 'marginally', etc. "That one is marginally better"
 * Issue 7: Dictionary fixes for 'done': "I am done working"
 * dictionary entries for walk-up drivethru car-wash
 * dictionary: "I am through being mad", "It was a through flight", etc.
 * Issue 11: "You are doing well"
 * Issue 3: "I asked Jim a question", "I told Jim a story"
 * Passive subjects with objects: "I was told that crap, too" "...was asked..."
 * Fixes for Apple Mac OSX (crash on non-executable stack)
 * Early version of Filip Maric's boolean SAT solver
 * fix: "He talked quietly of revolt." 
 * fix: "It consists mostly of sand.", "He talks, mostly of revolution."
 * fix: "He talked mostly to Ann.", "He talks a lot."
 * fix: than_usual: "He is taking longer than usual."
 * fix: a batch of new verbs from Roman Khlupin
 * fix: Fix crash on Apple Macintosh by correctly identifying the platform.
 * fix: "San Gabriel" "Block Island" "Great Southern Bank" "de la Rente"
 * fix: "I biked Johnson Creek."

Version 4.3.8 (14 August 2008) includes the following changes:
 * Build fixes for Windows (missing bzero and thread-safe rand)
 * Fix several mem leaks, one in the Java jni code.
 * Fix crash of java6 jvm, due to blown stack limits.

Version 4.3.7 (8 August 2008) includes the following changes:
 * Expanded list of given names to include those from 2005 US Census
 * Export a new java jni function, to get the inflected word.
 * Add a TO+ connector so that "I tend to agree" parses correctly.
 * Makefile fixes for Mac OS/X Leopard.

Version 4.3.6 (21 July 2008) includes the following changes:
 * Fixes for Windows MS Visual-C builds.
 * Fix parsing of "He walked the dog.", "He sailed the boat."
 * Add support for right-apostrophe (’) which is a non-ASCII UTF8 char.
 * Add support for other non-ASCII UTF8 punctuation.
 * Fix crash on printing constituent tree of certain long sentences.
 * Avoid recursive error reporting for UTF8 dictionary errors.
 * Clarify error logging and error printing.
 * Add java getVersion() to return link-grammar version string.
 * Add more numbers to dict (e.g. twenty-seven, bazillion, half-dozen, etc.)
 * Foodstuffs: bagels, lox, tacos, guacamole, roe, neufchatel, mayo, etc.
 * Weights and measures: megabytes, °C, km² etc.
 * Performance improvements in printing of link-tree.
 * Convert assert into warning when no canonical linkages can be found.
 * Convert assert into warning when constituent andlist overflows.
 * Provide additional checks for constituent overflows.
 * Convert most error printfs into a formal error reporting system.
 * Remove all globals, library is now thread-safe.
 * Fix crash when sentence has square bracket, and doing constituents.

Version 4.3.5 (29 April 2008) includes the following changes:
 * Added ant build file to create the link-grammar jar file.
 * Fix regression in command-line client of multiple-parse display.
 * Use MB_LEN_MAX, not MB_CUR_MAX for UTF8 support.
 * Fix a WIN32 compiler regression (no inline support in Windows).
 * Fix error in handling of UTF8 dictionaries.
 * Fix strncat() misuse in error.c
 * Fix capitalization errors in country names.
 * Fix parsing of "he angled left, he dodged left, he turned left".
 * Don't build the JNI library if Java isn't found. Fixes build on Windows.
 * Fix install bug for NetBSD systems.
 * Pre-detected entities cannot participate in G links.
 * There is no UTF8 support in windows, so stub it out.
 * Fix crash in constituent output, bug #22 in googlecode bugtacker.
 * Some small steps taken to eventually make library thread-safe.
 * There are three constituent string styles, enable all three.
 * Make the command-line flag errors less cyrptic.
 * Add readline (BSD editline) support.
 * Rename "grammar-parse" to the more logical "link-parser".
 * Small man page updates.
 * Export and cost, link cost via public API.

Version 4.3.4 (16 March 2008) includes the following changes:
 * Fix regression of handling of capitalization at the start of sentences.
 * Fix dictionary search path so that it respects command-line input.
 * Fix rare but nasty crash when parsing long sentences in panic mode.
 * Add a method to set the dictionary path.
 * Fix all remaining compiler warnings.
 * Make parser capable of handling UTF8 strings and dictionaries.
 * Ongoing minor expansion of the Lithuanian (lt) dictionary.

Version 4.3.3 (27 February 2008) includes the following changes:
 * Missing java is a warning, not an error.
 * man page for grammar-parse.
 * Removed cruft from the dictionary open routines.
 * configure tries to guess some non-standard jni.h locations.
 * Split up java library exports, should help cygwin builds.
 * Fix java library pre-linking bug.
 * Minor English dictionary additions.
 * Prototype Lithuanian (lt) dictionary.

Version 4.3.2 (2 February 2008) includes the following changes:
 * Compile fixes for WIN32
 * Dictionary fixes for given names. (Fixes a serious problem with 4.3.1)

Version 4.3.1 (31 Jaunary 2008) includes the following changes:
 * A merger of significant parts of the "medical terms" dictionary
   from Peter Szolovits.  This includes thousands of additional words.

Version 4.3.0 (30 January 2008) includes the following changes:
 * New link types (Ct, Cta, Rn, Rw) for comparatives, so as to link
   relative clauses: "John is bigger than Dave is", "John wants more
   cookies than Dave wants". The Rw link is used to link question words
   to the relative clauses that follow them.
 * Dictionary Fixes for "Expresso is a coffee drink", "Teach me fetch",
   "I am pooped" as synonym for "I am tired", "Mother likes her", 
   "Mommy loves me" and related. Also, directives involving "go":
   "Go play ball", "Go take a walk", "You and Rover go play with the
   ball."
 * Dictionary support for external entity markup. This includes the
   recognizition of personID0..personID60, dateID0..dateID60,
   organizationID0..organizationID60 and locationID0..locationID60
   as appropriate words.
 * Fixes of numerous compile-time warnings.
 * Simple Java (JNI) bindings.

Version 4.2.5 (11 November 2007) includes the following changes:
 * Security fix for a buffer overflow. CVE-2007-5395