diff --git a/docs/source/usersguide/output/particle_restart.rst b/docs/source/usersguide/output/particle_restart.rst
index e0d89a5156..eeb40a526e 100644
--- a/docs/source/usersguide/output/particle_restart.rst
+++ b/docs/source/usersguide/output/particle_restart.rst
@@ -4,7 +4,7 @@
 Particle Restart File Format
 ============================
 
-The current revision of the particle restart file format is 1.
+The current revision of the particle restart file format is 2.
 
 **/filetype** (*char[]*)
 
@@ -46,7 +46,13 @@ The current revision of the particle restart file format is 1.
 
 **/energy** (*double*)
 
-    Energy of the particle in MeV.
+    Energy of the particle in MeV.  This is always provided but only used
+    for continuous-energy mode.
+
+**/energy_group** (*double*)
+
+    Energy group of the particle.  This is always provided but only used
+    for multi-group mode.
 
 **/xyz** (*double[3]*)
 
diff --git a/docs/source/usersguide/output/statepoint.rst b/docs/source/usersguide/output/statepoint.rst
index 2921258c97..2251619653 100644
--- a/docs/source/usersguide/output/statepoint.rst
+++ b/docs/source/usersguide/output/statepoint.rst
@@ -4,7 +4,7 @@
 State Point File Format
 =======================
 
-The current revision of the statepoint file format is 14.
+The current revision of the statepoint file format is 15.
 
 **/filetype** (*char[]*)
 
diff --git a/src/constants.F90 b/src/constants.F90
index 0c208e6d34..b93abae2b7 100644
--- a/src/constants.F90
+++ b/src/constants.F90
@@ -11,10 +11,10 @@ module constants
   integer, parameter :: VERSION_RELEASE = 1
 
   ! Revision numbers for binary files
-  integer, parameter :: REVISION_STATEPOINT       = 14
-  integer, parameter :: REVISION_PARTICLE_RESTART = 1
+  integer, parameter :: REVISION_STATEPOINT       = 15
+  integer, parameter :: REVISION_PARTICLE_RESTART = 2
   integer, parameter :: REVISION_TRACK            = 1
-  integer, parameter :: REVISION_SUMMARY          = 2
+  integer, parameter :: REVISION_SUMMARY          = 3
 
   ! ============================================================================
   ! ADJUSTABLE PARAMETERS