New: "Preserve strand length" option for Comb brush, allowing it to "tweak" guides by only affecting vertices under the brush when the option is off
New: Hair Physical Shader is supported on hair in Maya 2018 and now auto assigned to all new hair shapes
New: Hair Physical Shader viewport preview has correct UVW coordinates of the hair
New: Simplified brush mirroring GUI controls
New: Symmetry node's mirror plane can be quickly picked via X/Y/Z drop-down
New: Hair IDs are exported to Renderman prim vars
Fixed: Unable to turn ON Use Strand Groups in some scenes when Hypershade is open
Fixed: Sink Editing Tool selects the distribution mesh instead of adding a new Sink
Fixed: Maya crashes when selecting guides if Select By Group is ON
Fixed: Maya freezes when copying a node which make use of a strand group
Fixed: Attribute editor is not updated when switching EG modes in Maya 2018
Fixed: Undoing the Re-Target Changes function causes the guides to go back to the original position (The groom preset)
Fixed: Guides created in Edit Guides and subsequently edited randomly rotate when moving roots across the distribution surface
Fixed: Sporadic error Assert failed: brushWorldPlane.GetIntersection( FromWorldRay, fromViewRayIntersection)
Fixed: Display problems when brushing guides with more than one Viewport window
Fixed: AE template error when adding or selecting AnimationCacheNode
Fixed: Unable to move guides using Maya's move tool after using the Delete Selected Strand tool
Fixed: Strand Animation modifier does not load animation when point count on guides is not uniform

Marsel Khadiyev (Software Developer, EPHERE Inc.)