marfrit 09c4a92432 historical_blobs: v1.16..v1.18 snapshots + byte-divergence analysis ...

Extracted from rkbin git (using git show <add-commit>:<path> since
each version-update commit deletes the previous binary). Sits here
so future runs don't need to re-extract.

Byte-diff analysis: v1.x → v1.(x+1) differs in ~88% of bytes. Every
release is a near-rewrite, not a patch. Consequence: cross-version
symbol porting tools (Polypyus, BinDiff) would match few functions
on this target. Function-level opcode-silhouette matching with
wildcards for branch targets may still work but needs Ghidra baseline
in each version, not a one-sided v1.19 annotation.

Polypyus attempted 2026-04-15 — blocked by Python 3.14 / pony 0.7
bytecode decompiler incompatibility (LOAD_FAST_BORROW + varname
table layout). Would need pyenv Python 3.11 venv, or switch to
BinDiff CLI (no Python dep). Deferred.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-04-15 08:51:01 +02:00

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