TeXquisite 0.128.0 - reuse unchanged full-resolution page images

Windows preview with exact reuse of unchanged full-resolution page images. Text size, page size, magnification and saved source are preserved. The worker cache is bounded to eight entries and 32 MiB of counted image/identity data; large or unsupported PDFs keep normal rendering.

Two matched repetitions on the same private ten-page lecture measured median text edits 225 -> 174 ms, equations 210 -> 168 ms, and sustained typing 372 -> 256 ms. All actual viewer pixel comparisons matched full rendering. The 300 ms target is not universal: fast typing p95 was 369 ms, and the slowest edit was 489 ms. Hidden completed-canvas timings are not a physical-screen or 99.9th-percentile guarantee. See the attached PAGE-PREVIEW-SPEED.md and aggregate results for methods and limits.

Exact binary source: ce404e48abff267c48ca13c06febf0c5dfa44638. Verification run passed 95 selected checks, 19 source/package integration reports and 28 pixel/cache cases. TeX Live or MiKTeX must be installed separately; read FIRST-RUN.md. These release downloads do not automatically expire. Existing Mac/Linux preview downloads remain on v0.123.0.

Measurement-control correction (3 November 2026): the historical edit-to-completed-canvas timings remain as recorded, but the asynchronous readiness wait did not reliably wait for preparation to finish before the first edit. Corrected tests explicitly await each readiness query. New fully prepared typing comparisons should not be compared directly with this report’s first-edit outliers. The binary, source tag and seven release assets are unchanged.