# Separate 1.9 compatibility addons — 5 November 2026

The separate RHS addon replaces two scripts at their original paths before
compilation. It updates `SetAuthor(int, bool)` and forwards `isGM`, and replaces
access to the removed wheel-index field with `GetWheelIndex()`. Installed RHS
and WCS files were never modified. Reproducible preparation lives in
`compatibility/rhs-1.9/prepare.py`; generated RHS source remains in `.local`.

The full dependency graph compiles on game and Workbench 1.9.0.37. The normal
scenario reaches player spawn. The existing rescue-faction fixture completes
114 behavioral assertions, zero failed assertions and zero script exceptions,
including all six faction/crew/capacity selections, two US transport landings,
unconscious-survivor boarding, original-player boarding and genuine loaded climb
above ten metres. Its pickup is explicitly arranged at the previously surveyed
airport location. It protects actors from combat and arranges the phase/signal;
this does not qualify smoke input, the full escape-boundary journey, driving,
dedicated multiplayer or remote ownership. The final rescue run confirms source
and installed dependencies unchanged and successful cleanup.

The strict report still reports inherited resource/property errors. In addition,
two actual BMP spawns failed native tire validation. Investigation found WCS's
tracked tire config has `Tread 2`, outside the documented 1.9 range `0..1`.
A separate WCS addon changes only that value to `1`. The `bmp-tire` fixture
then observes all twelve road wheels with their intended 0.32 m radius and a
running engine at 600 RPM; no tire-validation failure occurs. That engine start
is a direct diagnostic simulation call, not player driving input.

The RHS native pack exits with code 0 and contains exactly the two patched
scripts, byte-identical to the generated inputs. WCS is packaged separately.
Packaging alone is not Workshop publication. Neither addon nor Escape 0.0.141
has been published or pushed by this work.

Earlier attempts are retained: `wheel-probe` compiled but Steam was absent after
a host restart; `escape-probe` disappeared during world loading with no recorded
cause; `exit-diagnostic` reached gameplay but rejected the historical hillside
pickup; `normal-route` prepared/spawned successfully but its old assertion still
expected a parked helicopter. The current mission instead dispatches rescue
after the signal, so the existing modern rescue fixture was used for behavioral
validation. Initial pre-restart scratch logs were lost with `/tmp`; no archived
log is claimed for those runs.

Package runs can leave one Wine helper after ordinary runner shutdown. Separate
`recovery-cleanup.json` records confirm termination restricted to this task's
disposable prefix and subsequent idle verification; original failed cleanup
records remain unchanged. All native tests used hidden displays and muted audio.