Significant changes between September 2007 and January 2013:
Polished the default Sylabica font: made it narrower, improved kerning, fixed several bugs, added more punctuation.
Added a new consonant: w /w/ for foreign words like restawracja, kwiz. (Using u for it meant that the mapping from spelling to pronunciation was too ambiguous.)
Changed abstract spelling: ę→ẽ, ą→õ, ch→x, dz→ʒ, dź→ʒ́, dž→ǯ. (Internal consistency was deemed more important than resembling the standard orthography.)
Changed some vowel glyphs in Sylabica: ẽ↔õ, o↔ó, j. (Voiced consonants face left, and thus historically long vowels also face left, which is a better match than the opposite. The old j was too similar to ni in low resolutions.)
Changed letter ordering to suggest triples k, c, č; g, ʒ, ǯ; instead of leaving č, ǯ unpaired. (This makes the overall structure of consonants cleaner by having 4 sections: labial, coronal, velar, and liquid.)
Changed orthographic rules so that a consonant before j is never written as softened. (Deciding when to write it softened was too subtle.)
Clarified spelling of some words, e.g. budžet, v głõbi, rozmajyty, planetojda, mozajka. (This made either etymology or pronunciation more clear, at the cost of departing from the standard orthography.)
Listed rules for translation between the standard spelling and the abstract spelling.
Listed rules for transcription of selected foreign languages.
Removed precomposed syllables from Unicode allocation in Private Use Area. (Not needed with good software which can handle ligatures.)
Renamed Unicode characters so their names are based on English transcription instead of the abstract spelling. (More consistent with other scripts.)
Resolved how abbreviations are formed: they don’t necessarily consist of full syllables, and a middle dot is used as an abbreviation mark.
Significant changes between January 2013 and August 2013:
Abstract Spelling renamed to Etymologic Spelling.
Fifth major Sylabica revision:
The consonant inventory recognizes both etymologic and phonetic softening, with the preference to interpreting softening as etymologic when they agree. Etymologic softening is marked with a comma below in Etymologic Spelling, or an alternate letter shape with an additional horizontal line in Sylabica. Phonetic softening is marked with y, or a dot in Sylabica.
Summary of Etymologic Spelling changes: y→i, ỳ→ì, ẽ→ø, õ→ǿ, pi→p̒, bi→b̦, fi→f̦, vi→v̦, mi→m̦, ni→n̦, i→y, ć→ț, ʒ́→d̦, ś→ș, ź→z̦, ř→r̦, ł→l, l→l̦.
Reordered Sylabica vowels to go from low to high instead of from front to back. Reordered Sylabica consonants to mix liquids into the remaining groups (labial, coronal, velar).
Spelling made more etymologic for -zki, -zko, -ztvo, legki, Șl̦ǿzk.
A consonant before j which is softenable in core (and x, h) is again written as softened, except at a prefix boundary. (This looks better when the softness is an inherent aspect of the consonant rather than a separate marker, and is often more consistent with related words when the consonant is followed by i.)
Added transcription rules for more foreign scripts.
Significant changes between January 2014 and March 2014:
In English, renamed Sylabica to Sylabitsa.
Removed ly.
Reverted vowel order to go from front to back again.
Added transcription rules for even more foreign scripts. Various fixes in existing transcription rules.
Added transcription rules to English and Russian.
Changed Unicode encoding of the separator ʼ from U+2019 RIGHT SINGLE QUOTATION MARK to U+02BC MODIFIER LETTER APOSTROPHE.