Release v0.8.1

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: ivh

CHANGELOG.md

@@ -1,6 +1,22 @@
 # Changelog
 
 
+## [0.8.1] - 2026-03-05
+
+### Added
+- CRIRES+ L-band example script
+- Settings fallback chain for composite channel names
+- `hdf2trace` tool: write HDF wavelength polynomials into trace FITS
+
+### Fixed
+- Fix `create_custom_instrument` crash (was returning None config)
+- Fix charslit backend selection to check env var at call time
+- Bundle centers fallback, curvature and norm_flat fixes for MOSAIC VIS
+
+### Changed
+- Rewrite custom instrument example as student-friendly walkthrough
+- `create_custom_instrument` now accepts `**overrides` for inline property setting
+
 ## [0.8a5] - 2026-02-25
 
 ### Added

README.md

@@ -4,7 +4,7 @@
 
 # What's new?
 
-Version 0.8 brings a unified Trace data model and new Spectra format; see [WhatsNew.md](WhatsNew.md) for the highlights. If the update breaks your existing setup, you are very welcome to file an issue, so we can assist you.
+Version 0.8.1 fixes `create_custom_instrument` and adds a student-friendly example for reducing data from unsupported spectrographs. See [CHANGELOG.md](CHANGELOG.md) for all changes since 0.8.
 
 # PyReduce
 

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "pyreduce-astro"
-version = "0.8"
+version = "0.8.1"
 requires-python = ">=3.13"
 description = "A data reduction package for echelle spectrographs"
 readme = "README.md"