Code review: updates to release notes, missing information

Co-authored-by: jjonkman <jason.jonkman@nrel.gov>

Author: andrew-platt

docs/changelogs/v4.0.0.md

@@ -123,7 +123,7 @@ There were several updates to the `CMake` and Visual Studio build systems to sup
 #2183 Update GHCR doc, remove old Dockerfile (@mayankchetan)
 
 ### Documentation
-There were multiple improvements to documentation, notably with _TurbSim_, _SubDyn_, and _HydroDyn_.
+There were multiple improvements to documentation, notably with _TurbSim_, _SubDyn_, _HydroDyn_, and _SeaState_.
 
 #1664, #1665 TurbSim documentation (@bjonkman)
 
@@ -149,7 +149,7 @@ There were multiple improvements to documentation, notably with _TurbSim_, _SubD
 ## Solvers
 
 ### FAST.Farm
-_FAST.Farm_ received a major upgrade with the addition of background wake-added turbulence effects across the entire farm domain.  This improves the turbulence characteristics of propagating turbine wakes.
+_FAST.Farm_ received a major upgrade with the addition of wake-added turbulence effects across the entire farm domain.  This improves the turbulence characteristics of propagating turbine wakes.
 * Input file changes
 
 #1624 Use pointers to couple InflowWind and FAST.Farm (@deslaughter)
@@ -233,15 +233,15 @@ _AeroDyn14_ has been removed from the code base as it has been superseded by _Ae
 
 
 ### AeroDisk
-_AeroDisk_ is a new module for a disk actuator aerodynamic module.  This module assumes a rigid disk with only a few degrees of freedom for modeling turbine aerodynamics with a simple actuator disk.  This is useful for modeling turbines that are not of interest in very large wind farms modeled by _FAST.Farm_, but whose wake dynamics are needed for turbines further into the wind farm that are of interest.  We do not recommend using this module with standalone _OpenFAST_ simulations.
+_AeroDisk_ is a new module for a disk actuator aerodynamic module for modeling turbine aerodynamics as a simple actuator disk. This module assumes that the rotor is a rigid disk, and so, should be not be combined with _BeamDyn_ or _ElastoDyn_ with blade degrees of freedom enabled; it is meant to be used with the new _Simplified-ElastoDyn_ module.  This is useful for modeling turbines that are not of interest in very large wind farms modeled by _FAST.Farm_, but whose wake dynamics are needed for turbines further into the wind farm that are of interest.  We do not recommend using this module with standalone _OpenFAST_ simulations.
 * New input file
 
 #2575 ADsk: correction to disk average velocity equations (@andrew-platt)
 
 
 
 ### AeroDyn
-_AeroDyn_ improvements include a new input file, nacelle drag, visualization improvements, unsteady aero for tailfins, multi-rotor support in the driver and interface library, a simple ground effect model for _OLAF_ wakes, using _InflowWind_ pointers for data access, and many bug fixes.  With the removal of _AeroDyn14_, _AeroDyn15_ is now simply referred to as _AeroDyn_ in the input files and code (documentation may not be fully updated).
+_AeroDyn_ improvements include a new input file, new options in BEM to improve aerodynamics for skewed and sheared inflow and coned rotors, nacelle drag, visualization improvements, unsteady aero for tailfins, an improved unsteady airfoil aerodynamics driver, multi-rotor support in the interface library, a simple ground effect model for _OLAF_ wakes, using _InflowWind_ pointers for data access, and many bug fixes.  With the removal of _AeroDyn14_, _AeroDyn15_ is now simply referred to as _AeroDyn_ in the input files and code (documentation may not be fully updated).
 * _Major_ input file changes
 * Driver input file changes
 * Interface library API changes