diff --git a/Makefile b/Makefile
index c5d2dfe..7824dc6 100644
--- a/Makefile
+++ b/Makefile
@@ -18,4 +18,4 @@ UNINSTALL_DIRS += $(wildcard $(INSTALL_LOCATION)/python*)
 
 #useful targets includ: doc-html and doc-clean
 doc-%:
-	PYTHONPATH=$$PWD/python $(MAKE) -C documentation $*
+	PYTHONPATH=$$PWD/python$(PY_VER)/$(EPICS_HOST_ARCH) $(MAKE) -C documentation $*
diff --git a/documentation/devsup.rst b/documentation/devsup.rst
index a96410d..94ef094 100644
--- a/documentation/devsup.rst
+++ b/documentation/devsup.rst
@@ -3,8 +3,6 @@ devsup Package
 
 .. module:: devsup
 
-.. autofunction:: devsup.verinfo
-
 .. data:: NO_ALARM, MINOR_ALARM, MAJOR_ALARM, INVALID_ALARM
 
   Constants for alarm severity.  Use with :meth:`Record.setSevr <.db.Record.setSevr>`
diff --git a/documentation/environment.rst b/documentation/environment.rst
index 0183366..b01e2f8 100644
--- a/documentation/environment.rst
+++ b/documentation/environment.rst
@@ -4,7 +4,7 @@ Runtime Environment
 The pyDevSup module initializes the interpreter during the registration
 phase of IOC startup with the *pySetupReg* registrar function. ::
 
-  #!../../bin/linux-x86_64/softIocPy
+  #!../../bin/linux-x86_64/softIocPy2.7
   # Interpreter not started
   dbLoadDatabase("../../dbd/softIocPy.dbd",0,0)
   softIocPy_registerRecordDeviceDriver(pdbbase)
@@ -48,7 +48,11 @@ file. ::
   PYDEVSUP=/dir/where/pyDevSup/is/installed
   EPICS_BASE=/....
 
-The following should be added to the usual EPICS Makefiles. ::
+The default or preferred Python version can be specificed in *configure/CONFIG_SITE* ::
+
+  PY_VER ?= 2.7
+
+The following should be added to individual EPICS Makefiles. ::
 
   TOP=../..
   include $(TOP)/configure/CONFIG
@@ -66,7 +70,7 @@ which may be the same as ``PY_VER``.
 Include pyDevSup in your IOC
 ----------------------------
 
-While the *softIocPy* executable built as part of this module
+While the *softIocPyX.Y* executable(s) built as part of this module
 will be sufficient for many uses, it is also possible to
 include the pyDevSup modules in an IOC along with other drivers.
 This can be done in the usual way. ::
@@ -108,11 +112,12 @@ Installing for several Python versions
 The recipe for building and installing the pyDevSup module
 for several python version side by side is ::
 
-  make PYTHON=python2.6
+  make PY_VER=2.6
   make clean
-  make PYTHON=python2.7
+  make PY_VER=2.7
   make clean
-  make PYTHON=python3
+  make PY_VER=3.2
   make clean
 
-Note that the ``softIocPy`` will by build for the last version only.
+The ``PYTHON`` make variable can be specified if the interpreter executable
+has a name other than ``python$(PY_VER)``.
diff --git a/documentation/index.rst b/documentation/index.rst
index 1fb057e..d7d1270 100644
--- a/documentation/index.rst
+++ b/documentation/index.rst
@@ -6,6 +6,10 @@
 pydevsup documentation
 ======================
 
+*pyDevSup* is a means of writing EPICS device support code in Python.
+
+It currently supports EPICS >=3.14.11 and python versions: 2.6, 2.7, and 3.2.
+
 Contents:
 
 .. toctree::