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 # Changelog
 ## 1.0.0
 
+### 1.0.0-rc.173
+
+* Rugnux masks detector pixels that stay hot on every frame but are missing from the file's pixel mask, found on the frames it already reads before integration.
+* Rugnux rejects single observations that Wilson statistics make implausible (typically a hot pixel, zinger or ice spot), including pairs and single measurements that the equivalents test cannot judge; the count is reported as `OBSERVATIONS_REJECTED_WILSON`.
+* Rugnux reports the X-ray bandwidth it measures from spot shapes (for multilayer and pink beams); the value is reported only and does not change processing.
+* Rugnux accepts a detector-modulation or absorption correction surface when held-out data support it on Fisher's z, and fits them in the order modulation, time, goniometer frame; this recovers corrections that were wrongly refused.
+* `rugnux --polarization` is documented as the polarization degree (XDS `FRACTION_OF_POLARIZATION` = (1 + p)/2); the default 0.99 suits undulators.
+
 ### 1.0.0-rc.172
 
 * Fixed `jfjoch_broker` cancelling every data collection with a CUDA "out of memory" error after long operation: GPU memory no longer leaks with each collection.