Add coat darkening and saturation effects by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/162
Define Oren-Nayar lobe explicitly as EON model (i.e. energy-compensated Fujii) by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/174
Specify the anisotropy direction by @virtualzavie in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/170
Coat roughening convolution formula by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/172
Add a discussion/solution of the coat "spurious TIR" issue by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/166
Add white furnace testing section by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/192
Changed
Thin-film improvements by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/167
Remove Future work notes and left over comments by @virtualzavie in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/181
Rework readme links by @virtualzavie in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/182
Remove conclusion section by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/186
Upgrade reference implementation to 1.39 by @jstone-lucasfilm in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/188
Layer diagram improvements by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/189
Update the coat_darkening parameter to default to 1 by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/193
Initial cleanup for 1.0. by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/191
Slightly shift TOC closer to teaser image. by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/194
Update contributors list. by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/195
Update specification and reference to v0.5 by @jstone-lucasfilm in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/196
Fixed
Fix uifolder name for subsurface weight by @fpliu in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/184
Fix IOR schematic figure in thin-film section by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/185
New Contributors
@fpliu made their first contribution in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/184
Full Changelog: https://github.com/AcademySoftwareFoundation/OpenPBR/compare/v0.4...v0.5