v0.4.3

[0.4.3] - 2026-08-13

Added

• Corpus-backed, syntax-agnostic v3 dictionary fragment discovery with exact
  longest-match usage accounting
• Exact v3 dictionary objective scoring for overlapping whole entries and
  fragments
• Optional split v3 dictionary-matrix architecture with an independent
  HIER4/HIER8 dictionary namespace, diagonal paths, nested nodes, runtime
  loading, static code generation, and backward-compatible shared tables
• Regression coverage for fragment/whole coexistence, fragment-for-whole
  swaps, split dictionary matrices, generated/static round-trips, and loader
  validation

Changed

• V3 fragment refinement now uses deterministic dictionary-first admission:
  payload training ranks by active non-overlapping use count inside isolated
  dictionary gain, while embedded/amortized objectives may use potential counts
  for shadowed-entry swaps
• Only the strongest positive dictionary-gain class is exact-v3 evaluated in a
  refinement round; an improving fragment is committed immediately and corpus
  proposals are rebuilt against the new longest-match parse
• V3 training now evaluates shared and split dictionary-matrix layouts and
  selects the lower requested objective instead of forcing either architecture
• Dictionary matrix DIRECT cells address dictionary indices directly, so
  split tables avoid duplicating dictionary entries in the main symbol table
• Trainer diagnostics now distinguish round-summed gain-positive proposal
  observations from the small number of candidates actually exact-scored
• V3 dictionary reports now show final effective uses and a clearly labelled
  isolated admission gain instead of stale analyzer gain values

Fixed

• Removed the pathological v3 fragment-refinement behavior that exact-scored
  hundreds of thousands of corpus proposals with repeated full-corpus scans
• Prevented shadow-only occurrences from inflating payload fragment admission
  counts
• Escaped control and non-printable bytes in fragment diagnostics so entries
  such as newline-prefixed log fragments cannot break trainer output
• Preserved old shared v3 table loading while extending reserved v3 metadata for
  split dictionary matrices

Verified

• Full test suite passes after a clean rebuild
• Release build path passes make, make test, make package, and
  make examples
• On trainings/extra/logs_corpus.txt (1,886,013 bytes), refinement processes
  only 3 exact candidates across 3 rounds, adds 2 fragments, raises dictionary
  byte coverage to 84.9%, and reduces the payload objective from 4,772,661 to
  3,725,400 bits
• Shared/split selection remains corpus-dependent: split wins before fragment
  refinement on the logs corpus, while the refined distribution correctly
  selects the lower-payload shared HIER8 layout

v0.4.2

Release 0.4.2

See CHANGELOG.md for details.

v0.4.1

Release 0.4.1

See CHANGELOG.md for details.

v0.4.0

Release 0.4.0

See CHANGELOG.md for details.

v0.3.0

Release 0.3.0

See CHANGELOG.md for details.

v0.2.4

Release 0.2.4

See CHANGELOG.md for details.