diff --git a/configure/CONFIG_BASE b/configure/CONFIG_BASE
index 1270ef468..e416f99db 100644
--- a/configure/CONFIG_BASE
+++ b/configure/CONFIG_BASE
@@ -62,6 +62,7 @@ DBTORECORDTYPEH            = $(PERL) $(TOOLS)/dbdToRecordtypeH.pl
 DBTOMENUH                  = $(PERL) $(TOOLS)/dbdToMenuH.pl
 REGISTERRECORDDEVICEDRIVER = $(PERL) $(TOOLS)/registerRecordDeviceDriver.pl
 CONVERTRELEASE             = $(PERL) $(TOOLS)/convertRelease.pl
+FULLPATHNAME               = $(PERL) $(TOOLS)/fullPathName.pl
 
 #-------------------------------------------------------
 # tools for installing libraries and products
diff --git a/configure/CONFIG_COMMON b/configure/CONFIG_COMMON
index f9b63e2d9..194e05ae1 100644
--- a/configure/CONFIG_COMMON
+++ b/configure/CONFIG_COMMON
@@ -78,8 +78,8 @@ INSTALL_CONFIG              = $(INSTALL_LOCATION)/configure
 # Directory for OS independant build created files
 COMMON_DIR = ../O.Common
 
-# The IOC's path to $(TOP), may be overridden inside the application
-IOCS_APPL_TOP               = $(INSTALL_LOCATION)
+# IOC's absolute path to $(TOP), may be overridden inside the application
+IOCS_APPL_TOP               = $(shell $(FULLPATHNAME) $(INSTALL_LOCATION))
 
 #-------------------------------------------------------
 # Make echo output - suppress echoing if make's '-s' flag is set
diff --git a/configure/RULES.Db b/configure/RULES.Db
index 60dc2a0f0..a258d5aa9 100644
--- a/configure/RULES.Db
+++ b/configure/RULES.Db
@@ -467,19 +467,18 @@ $(foreach file, $(DB_INSTALLS), $(eval $(call DB_INSTALLS_template, $(file))))
 
 ##################################################### register record,device,driver support
 
-IOC_INST_TOP := $(shell $(PERL) $(TOOLS)/fullPathName.pl $(IOCS_APPL_TOP) )
 
 %_registerRecordDeviceDriver.cpp: $(COMMON_DIR)/%.dbd
 	@$(RM) $@
-	$(REGISTERRECORDDEVICEDRIVER) $(REGRDDFLAGS) -o $@ $< $(basename $@) $(IOC_INST_TOP)
+	$(REGISTERRECORDDEVICEDRIVER) $(REGRDDFLAGS) -o $@ $< $(basename $@) $(IOCS_APPL_TOP)
 
 %_registerRecordDeviceDriver.cpp: %.dbd
 	@$(RM) $@
-	$(REGISTERRECORDDEVICEDRIVER) $(REGRDDFLAGS) -o $@ $< $(basename $@) $(IOC_INST_TOP)
+	$(REGISTERRECORDDEVICEDRIVER) $(REGRDDFLAGS) -o $@ $< $(basename $@) $(IOCS_APPL_TOP)
 
 %_registerRecordDeviceDriver.cpp: ../%.dbd
 	@$(RM) $@
-	$(REGISTERRECORDDEVICEDRIVER) $(REGRDDFLAGS) -o $@ $< $(basename $@) $(IOC_INST_TOP)
+	$(REGISTERRECORDDEVICEDRIVER) $(REGRDDFLAGS) -o $@ $< $(basename $@) $(IOCS_APPL_TOP)
 
 .PRECIOUS: %_registerRecordDeviceDriver.cpp
 
diff --git a/configure/RULES.ioc b/configure/RULES.ioc
index cf74343b2..6b2150fcb 100644
--- a/configure/RULES.ioc
+++ b/configure/RULES.ioc
@@ -26,7 +26,7 @@ endif
 
 cdCommands envPaths dllPath.bat: $(wildcard $(TOP)/configure/RELEASE*) \
     $(wildcard $(TOP)/configure/CONFIG_SITE*) $(INSTALL_BIN)
-	$(PERL) $(TOOLS)/convertRelease.pl -a $(ARCH) -t $(IOCS_APPL_TOP) $@
+	$(CONVERTRELEASE) -a $(ARCH) -t $(IOCS_APPL_TOP) $@
 
 realclean:
 	$(RM) cdCommands envPaths dllPath.bat
diff --git a/configure/os/CONFIG.Common.UnixCommon b/configure/os/CONFIG.Common.UnixCommon
index 87f44d7b1..b4357152f 100644
--- a/configure/os/CONFIG.Common.UnixCommon
+++ b/configure/os/CONFIG.Common.UnixCommon
@@ -57,7 +57,7 @@ SHRLIB_LDLIBS = $(addprefix -l, $($*_LDLIBS) $(LIB_LIBS) $(USR_LIBS)) \
 
 SHRLIB_DEPLIB_DIRS = $(foreach word, \
     $(sort $(dir $($*_DEPLIBS) $(SHRLIB_DEPLIBS))), \
-    $(shell $(PERL) $(TOOLS)/fullPathName.pl $(word)))
+    $(shell $(FULLPATHNAME) $(word)))
 
 SHRLIBDIR_LDFLAGS += $(SHRLIB_DEPLIB_DIRS:%=-L%)
 
@@ -85,7 +85,7 @@ PROD_LDLIBS += $($(firstword $(LDLIBS_STATIC_$(STATIC_BUILD)) \
 
 PROD_DEPLIB_DIRS = $(foreach word, \
     $(sort $(dir $($*_DEPLIBS) $(PROD_DEPLIBS))), \
-    $(shell $(PERL) $(TOOLS)/fullPathName.pl $(word)))
+    $(shell $(FULLPATHNAME) $(word)))
 
 PRODDIR_LDFLAGS += $(PROD_DEPLIB_DIRS:%=-L%)
 
diff --git a/configure/os/CONFIG.Common.iosCommon b/configure/os/CONFIG.Common.iosCommon
index 2ea146902..00e5c38ce 100644
--- a/configure/os/CONFIG.Common.iosCommon
+++ b/configure/os/CONFIG.Common.iosCommon
@@ -78,7 +78,7 @@ OP_SYS_LDFLAGS += -dynamic -Z -L$(SDK_DIR)/usr/lib -L$(SDK_DIR)/usr/lib/system
 # Shared libraries
 SHRLIB_VERSION = $(EPICS_VERSION).$(EPICS_REVISION).$(EPICS_MODIFICATION)
 SHRLIB_LDFLAGS = -dynamiclib -flat_namespace -undefined suppress \
-       -install_name $(shell $(PERL) $(TOOLS)/fullPathName.pl $(INSTALL_LIB))/$@ \
+       -install_name $(shell $(FULLPATHNAME) $(INSTALL_LIB))/$@ \
        -compatibility_version $(EPICS_VERSION).$(EPICS_REVISION) \
        -current_version $(SHRLIB_VERSION)
 SHRLIB_SUFFIX_BASE = .dylib
diff --git a/configure/os/CONFIG.darwinCommon.darwinCommon b/configure/os/CONFIG.darwinCommon.darwinCommon
index a135c9aa1..57a5553f0 100644
--- a/configure/os/CONFIG.darwinCommon.darwinCommon
+++ b/configure/os/CONFIG.darwinCommon.darwinCommon
@@ -67,7 +67,7 @@ CCC = $(GNU_BIN)/c++
 #
 SHRLIB_VERSION = $(EPICS_VERSION).$(EPICS_REVISION).$(EPICS_MODIFICATION)
 SHRLIB_LDFLAGS = -dynamiclib -flat_namespace -undefined suppress \
-       -install_name $(shell $(PERL) $(TOOLS)/fullPathName.pl $(INSTALL_LIB))/$@ \
+       -install_name $(shell $(FULLPATHNAME) $(INSTALL_LIB))/$@ \
        -compatibility_version $(EPICS_VERSION).$(EPICS_REVISION) \
        -current_version $(SHRLIB_VERSION)
 SHRLIB_SUFFIX_BASE = .dylib
diff --git a/src/ca/client/CAref.html b/src/ca/client/CAref.html
index 94f43aed8..bd63bc018 100644
--- a/src/ca/client/CAref.html
+++ b/src/ca/client/CAref.html
@@ -2826,13 +2826,13 @@ int ca_array_put_callback ( chtype TYPE, unsigned long COUNT,
 
 <p>Write a scalar or array value to a process variable.</p>
 
-<p>When ca_array_put  or ca_put are invoked the client will receive no response
+<p>When ca_put or ca_array_put are invoked the client will receive no response
 unless the request can not be fulfilled in the server. If unsuccessful an
 exception handler is run on the client side.</p>
 
-<p>When ca_array_put_callback are invoked the user supplied asynchronous call
-back is called only after the initiated write operation, and all actions
-resulting from the initiating write operation, complete.</p>
+<p>When ca_put_callback or ca_array_put_callback are invoked the user supplied
+asynchronous call back is called only after the initiated write operation, and
+all actions resulting from the initiating write operation, complete.</p>
 
 <p>If unsuccessful the call back function is invoked indicating failure status.
 </p>
@@ -2952,7 +2952,7 @@ int ca_array_get_callback ( chtype TYPE, unsigned long COUNT,
 
 <p>Read a scalar or array value from a process variable.</p>
 
-<p>When ca_get or ca_array_get are invoked the returned channel value cant be
+<p>When ca_get or ca_array_get are invoked the returned channel value can't be
 assumed to be stable in the application supplied buffer until after ECA_NORMAL
 is returned from ca_pend_io. If a connection is lost outstanding ca get
 requests are not automatically reissued following reconnect.</p>
diff --git a/src/ca/client/templateInstances.cpp b/src/ca/client/templateInstances.cpp
index ae3f9245d..dd8b5113e 100644
--- a/src/ca/client/templateInstances.cpp
+++ b/src/ca/client/templateInstances.cpp
@@ -78,6 +78,10 @@ template comBuf :: popStatus comBuf :: pop ( unsigned char & returnVal );
 template void WireSet ( float const &, unsigned char * );
 template void WireSet ( int const &, unsigned char * );
 template void WireSet ( short const &, unsigned char * );
+template void ca_client_context :: whenThereIsAnExceptionDestroySyncGroupIO
+    (epicsGuard < epicsMutex > &, syncGroupWriteNotify & );
+template void ca_client_context :: whenThereIsAnExceptionDestroySyncGroupIO
+    ( epicsGuard < epicsMutex > &, syncGroupReadNotify & );
 
 
 #ifdef _MSC_VER
diff --git a/src/template/base/top/configure/CONFIG_SITE b/src/template/base/top/configure/CONFIG_SITE
index 72b399d43..92156d971 100644
--- a/src/template/base/top/configure/CONFIG_SITE
+++ b/src/template/base/top/configure/CONFIG_SITE
@@ -13,21 +13,19 @@
 # Normally CHECK_RELEASE should be set to YES.
 # Set CHECK_RELEASE to NO to disable checking completely.
 # Set CHECK_RELEASE to WARN to perform consistency checking but
-#   continue building anyway if conflicts are found.
+#   continue building even if conflicts are found.
 CHECK_RELEASE = YES
 
 # Set this when you only want to compile this application
 #   for a subset of the cross-compiled target architectures
 #   that Base is built for.
-#CROSS_COMPILER_TARGET_ARCHS = vxWorks-68040
+#CROSS_COMPILER_TARGET_ARCHS = vxWorks-ppc32
 
 # To install files into a location other than $(TOP) define
 #   INSTALL_LOCATION here.
-#INSTALL_LOCATION=</path/name/to/install/top>
+#INSTALL_LOCATION=</absolute/path/to/install/top>
 
-# Set this when your IOC and the host use different paths
-#   to access the application. This will be needed to boot
-#   from a Microsoft FTP server or with some NFS mounts.
-# You must rebuild in the iocBoot directory for this to
-#   take effect.
-#IOCS_APPL_TOP = </IOC/path/to/application/top>
+# Set this when the IOC and build host use different paths
+#   to the install location. This may be needed to boot from
+#   a Microsoft FTP server say, or on some NFS configurations.
+#IOCS_APPL_TOP = </IOC's/absolute/path/to/install/top>
diff --git a/src/tools/convertRelease.pl b/src/tools/convertRelease.pl
index 586e5ee35..5b0890425 100644
--- a/src/tools/convertRelease.pl
+++ b/src/tools/convertRelease.pl
@@ -52,9 +52,14 @@ if ($opt_T) {
 if ($opt_t) {
     $iocroot = $opt_t;
     $root = $top;
-    while (substr($iocroot, -1, 1) eq substr($root, -1, 1)) {
-        chop $iocroot;
-        chop $root;
+    if ($iocroot eq $root) {
+        # Identical paths, -t not needed
+        undef $opt_t;
+    } else {
+        while (substr($iocroot, -1, 1) eq substr($root, -1, 1)) {
+            chop $iocroot;
+            chop $root;
+        }
     }
 }