Version 1.7.5 (29th October 2023)

• fixed rendering of arctan2.

Version 1.7.4 (17th October 2023)

• try to catch some GMP exceptions to avoid GMP aborting Chalk;
• fixed bugs in bit inspector.

Version 1.7.3 (14th October 2023)

• fixed some GUI updates;
• updated third-party libraries.

Version 1.7.2 (20th May 2023)

• added floor() and ceil();
• added theme for dark mode;
• minor polishing;
• documentation updates;
• updated third-party libraries.

Version 1.7.1 (19th March 2022)

• fixed a case where correct results could be displayed incorrectly;
• fixed some windows styles.

Version 1.7.0 (26th March 2022)

• Fixed missing space trimming when using identifiers;
• fixed highlighting location of some errors;
• added new "prepare next input" option;
• added constant manager;
• added ability to change font size in the calculator rendering area.

Version 1.6.11 (17th May 2021)

• fixed wrong computation with intervals and negative integer exponents because of a typo;
• fixed some NaN propagations.

Version 1.6.10 (2nd May 2021)

• fixes for MacOS Dark mode;
• updated third-party libraries that broke 10.9 compatibility.

Version 1.6.9 (23rd April 2021)

• Fixed some small regressions in the allowed syntaxes;
• an improper "inexact" flag could remain after the first use of some MPFR function;
• updated third-party libraries.

Version 1.6.8 (13th March 2021)

• fixed crash due to bad linking to a shared library.

Version 1.6.7 (12th March 2021)

• fixed crash in some text parsing;
• changed displayed uncertainty to be rounded up instead of rounded to nearest;
• updated third-party libraries.

Version 1.6.6 (26th January 2021)

• fixed a miscompilation of MPFR regarding multi-threading, resulting in crashes in the Graph tool;
• updated third-party libraries.

Version 1.6.5 (20th December 2020)

• updated third-party libraries;
• Universal build (x86_64 and arm64 for native Apple Silicon support).

Version 1.6.4 (24th November 2020)

• updated third-party libraries, enabling previously missing optimizations.

Version 1.6.3 (6th August 2020)

• updated third-party libraries.

Version 1.6.2 (9th August 2020)

• increased maximal floating point exponent to 2⁶²-1.
• fixed problems with the bit manipulator tool;
• minor fixes and GUI improvements.

Version 1.6.1 (17th July 2020)

• Fixed problems with the bit manipulator tool;
• fixed problems (possibly crash) regarding signed to unsigned conversion of exponents of magnitude larger than 2³²;
• if the "inexact indicator" "…" is used in a decimal input, it is no more converted into a fraction;
• √ and ∛ are now prefix operators that do not require parenthesis - this is on the way to support formal values;
• optimize some images sizes to reduce the size of the application;
• minor fixes and GUI improvements.

Version 1.6.0 (10th July 2020)

• Fixed crashes due to XCode compiler regressions;
• added the 'swap()' function, visible as well in the bit manipulator;
• added the '#' desambiguifier for the exponent symbol (of the scientific notation of a number) in a base where 'e' and 'p' are digits;
• added support of Unicode characters √ and ∛ as shortcuts for sqrt() and cbrt(), for the sole purpose of making those functions easier to find in the documentation;
• minor fixes and GUI improvements;
• updated third-party libraries.

Version 1.5.7 (10th June 2020)

• Input now accepts spaces between digits, to allow easier manipulation of digits grouping;
• better error reporting when invalid digits are used in a given base;
• updated third-party libraries.

Version 1.5.6 (1st May 2020)

• The digits grouping could not be honoured in some case.

Version 1.5.5 (27th April 2020)

• Prevent the use of a reserved identifier as iterator for functions like sum() that iterate over a custom identifier;
• Updated Sparkle framework.

Version 1.5.4 (24th April 2020)

• new compatibility fix for MacOS 10.9;
• minor fixes.

Version 1.5.3 (23th April 2020)

• fixed compatibility with MacOS 10.9;
• computation and presentation options (base, digits groups...) are now automatically saved.

Version 1.5.2 (17th April 2020)

• binary compatibility with MacOS <10.15 was broken;
• binary compatibility with processors older than Broadwell was broken.

Version 1.5.1 (15th April 2020)

• Notarized version;
• fixed MacOS Catalina+Autosave bug by using Sandboxing;
• fixed dragging in equation editor;
• fixed some Apple's XCode miscompilations that could result in unexpected behaviour;
• big refactoring to use WKWebView (when available) and MathJax v3;
• updated third-party libraries.

Version 1.4.2 (13th January 2020)

• Fixed crash due to dynamic library loading failure.

Version 1.4.1 (12th January 2020)

• Fixed a bug in quaternion (and complex) division;
• Fixed π symbol;
• added NOT operator;
• fixed some error reporting;
• fixed focus on input field at launch.

Version 1.4.0 (19th July 2019)

• The preference "Raise error on NaN" was not properly applied;
• fixed base prefix/suffix parsing;
• added the fromBase() function;
• added the primorial() function;
• ability to change the number of display digits when the value is an integer displayed as a real;
• updated known Mersenne primes;
• sorted entries in Quick reference;
• updated third-party libraries.

Version 1.3.2 (21st April 2018)

• Fixed string parsing when a base suffix is involved;
• fixed explicit uncertainty handling in some cases;
• do not use superscript any more after the 'e' of scientific notation;
• change the number of bits to display by the approximation of digits to display;
• updated third-party libraries.

Version 1.3.1 (10th March 2018)

• Fixed bugs regarding string parsing and exponent notation.

Version 1.3.0 (5th March 2018)

• Fixed bit inspector regression some float number interpretations;
• improved detection of exact display of floating point number values;
• improved parser to allow more characters for "degree" symbol;
• added MathML export in the equation generator;
• Greek localization;
• updated third-party libraries.

Version 1.2.0 (8th February 2018)

• Fixed bit inspector regression regarding float number interpretations;
• fixed parsing performance in some cases;
• added IF ... THEN ... ELSE and the ternary operator ... ? ... : ...
• added ability to define user functions;
• added sum() and product() for series;
• added integral() to numerically compute integral approximations;
• added log10();
• added operator ** as equivalent for ^ (power);
• using approximation compute mode for large integers will display them with scientific notation;
• better parsing in some corner cases;
• better fraction display in output field;
• reduced MathJax footprint to reduce global Chalk size;
• updated third-party libraries.

Version 1.1.0 (17th November 2017)

• Fixed wrong computation optimization leading to wrong results when inverting matrices with fractions that were inverse of integers;
• Fixed regression where dynamic variables may not be automatically updated properly;
• Fixed 0! to return 1 (by mathematical convention);
• added Gamma and Zeta functions;
• added preference to select how the next input is prepared;
• adjust displayed uncertainty when reducing the number of display bits;
• minor help improvements;
• updated third-party libraries.

Version 1.0.0 (30th May 2017)

• More graph refinements regarding uncertainty;
• First non beta release.

Version 0.9.19 (1.0.0 rc 5) (20th May 2017)

• Fixed regressions introduced in rc4 about graph drawing;
• added ability to fill curves;
• minor GUI refinements.

Version 0.9.18 (1.0.0 rc 4) (20th May 2017)

• Added themes for calculator;
• more graph rendering settings;
• GUI refinements.

Version 0.9.17 (1.0.0 rc 3) (18th May 2017)

• many GUI changes in the Grapher;
• fixed display error with exclusive subscript range;
• minor GUI refinements;
• updated doc.

Version 0.9.16 (1.0.0 rc 2) (16th May 2017)

• GUI refinements;
• added ability to make text annotations on items;
• added print menu for the calculator.

Version 0.9.15 (1.0.0 rc 1) (11th May 2017)

• French GUI localization;
• minor GUI changes;
• first attempt to leave beta state, this is the first release candidate.

Version 0.9.14 (1.0.0 beta 14) (9th May 2017)

• At last, found a bug in Core Data and a misbehaviour in MacOS 10.12 that did not occur with previous versions of MacOS. This should fix a big problem of items being impossible to select reliably, that I could not see or reproduce before;
• minor GUI changes.

Version 0.9.13 (1.0.0 beta 13) (7th May 2017)

• The equation generator now supports document save/load;
• minor GUI changes.

Version 0.9.12 (1.0.0 beta 12) (5th May 2017)

• The equation generator can now reopen a PDF generated by Chalk;
• the default document is now only hidden when closed, so that it can be reopened very quickly;
• minor GUI changes.

Version 0.9.11 (1.0.0 beta 11) (4th May 2017)

• Added minimalist equation generator to create PDF or SVG rendered equations in TeX language;
• GUI changes.

Version 0.9.10 (1.0.0 beta 10) (3rd May 2017)

• Added buttons to feed pasteboard with PDF or SVG with input or output of items.

Version 0.9.9 (1.0.0 beta 9) (2nd May 2017)

• The bit inspector now accepts a one-value list or matrix, and disables itself for non supported values;
• Added hconcat() and vconcat() for matrices.

Version 0.9.8 (1.0.0 beta 8) (1st May 2017)

• fixed bits_reverse() for non-raw values.

Version 0.9.7 (1.0.0 beta 7) (1st May 2017)

• Added reverse bits operation in the bits inspector;
• added bits_concat_be(), bits_concat_le(), bits_reverse(), golomb_rice_decode(), golomb_rice_encode();
• fixed initialization problem when converting the base after using a raw value.

Version 0.9.6 (1.0.0 beta 6) (25th April 2017)

• Fixed a case where fractions could be displayed incorrecly and lead to misleading value interpretation;
• Adjusted graph zoom behaviour.

Version 0.9.5 (1.0.0 beta 5) (24th April 2017)

• Fixed a regression that results in a crash. By the way I am sorry, but that's what beta are for.

Version 0.9.4 (1.0.0 beta 4) (23th April 2017)

• Fixed incoherences that could occur in the document database.

Version 0.9.3 (1.0.0 beta 3) (23th April 2017)

• Tentatively fix an obscure reported bug of instability that I cannot observe myself.

Version 0.9.2 (1.0.0 beta 2) (22th April 2017)

• Fixed interface on most recent versions of MacOS
• fixed minor bugs

Version 0.9.1 (1.0.0 beta 1) (13th April 2017)

• First public beta.