Release notes

What changed in the recent releases, explained for users — each item links to the docs page that covers it. The complete, technical history lives in the repository: CHANGELOG.md on GitHub.

0.7.7 — 2026-10-17

• New synth command — build an ECU-like binary from scratch, with no ECU file involved. It is deterministic (same settings and seed → byte-identical file), so it works as a demo, a test fixture, or a reproducible case in a bug report. Generated files identify as Unknown by design: they carry no manufacturer fingerprints.
• New contribute command — the contribution wizard. Own a dump of an ECU family the engine does not recognise? It measures your dump for a byte pattern that is stable in that family and absent from every family already supported, then (with --write) writes the fixture, an extractor skeleton, a test and a PR report. Your dump never leaves your machine — only a few hundred bytes of fixture recipe travel. --measure-only gives a first look that needs neither a clone nor the family name.
• Fixtures instead of ROMs — an 89-file mimic corpus (_dev/contrib/) that the wizard checks candidate signatures against, and a golden corpus (tests/corpus/) built on synthetic dumps that runs in CI with no ECU data.
• Correctness fixes, two of which change results on real binaries: the VAG part-number scan no longer stops at an all-digit lookalike (some EDC15/16/17/EDC3.x dumps now report the part number they always had), and the cached two-stage map scan no longer returns a previous call's tables when the thresholds change.
• HEX / S-Record input now decodes in the two-stage map scan, as it already did everywhere else, and list_methods honours its kind filter.

0.7.6 — 2026-09-06

• Two new ECU families gained full support: Bosch ME7.9.x (ME7.9.10, Fiat/Alfa/Lancia 1.4 T-Jet + PSA) and Siemens GS20 (BMW automatic gearbox). See the ME7.9.x and GS20 pages.
• analyze --xref-mode v2 — an opt-in, stricter code-reference mode (a table earns the confirmation bonus only when it is already high-confidence and referenced by code).
• Fixes to VAG part-number detection across the EDC15/16/17/3.x extractors.
• Docs: Denso family labels corrected to the real CPUs, and the decoder-coverage picture updated (see Decoders).

0.7.5 — 2026-08-30

• New routine command — read a code routine as readable pseudo-code, no Ghidra needed.
• Much wider CPU coverage for the code-reference signal: the decoder census now maps 31 of 38 families, adding Rust decoders for the 8051/MCS-51 and MCS-96 families that had none before (see Decoders).
• Every family's CPU was audited, so it is clear what is covered and what still needs work.
• Security: the Rust↔Python bridge (PyO3) was upgraded to close two vulnerability advisories.

0.7.4 — 2026-08-28

• The documentation release: the wiki and README brought in line with the 0.7.3 decoder work (new Decoders page, MS43 promoted to a full extractor entry, corrected extractor counts).
• No runtime-code changes.