CHANGELOG (Unreleased): the v1 B-tree lookup, `Storage::hint`, the walks
that go on past a missing node, and the counts before and after on an
h5py file like the reviewer's (3000 datasets, 198 MB, earliest and
latest libver, 1 MiB and 64 KiB blocks), the corpus read lazily at
512 B and 64 KiB blocks, and the Node/Chromium suite.
known-issues (browser limits, round trips): the new counts, why the
passes cannot go lower (the chain of addresses), why merging nearby
requests does not help such a file, and that a second listing refetches
at 1 MiB blocks when the file's metadata blocks exceed `cacheSize`.
range-reads.md M4 status and the viewer README follow.
Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>