Index: tests/accessor.test
===================================================================
diff -u -r5fe3bf01884cc4afc6fa92c81b58d1734bc1fd28 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/accessor.test	(.../accessor.test)	(revision 5fe3bf01884cc4afc6fa92c81b58d1734bc1fd28)
+++ tests/accessor.test	(.../accessor.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package req nx::test
 nx::test configure -count 1
 
Index: tests/cget.test
===================================================================
diff -u -rd4706d18f1881fd9d7c0ba017b56002dd227912e -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/cget.test	(.../cget.test)	(revision d4706d18f1881fd9d7c0ba017b56002dd227912e)
+++ tests/cget.test	(.../cget.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package req nx
 package require nx::test
 
Index: tests/class-method.test
===================================================================
diff -u -rc4f449cb353be812ba6502ef8e9587e87881f59b -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/class-method.test	(.../class-method.test)	(revision c4f449cb353be812ba6502ef8e9587e87881f59b)
+++ tests/class-method.test	(.../class-method.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package require nx::test
 
 #
Index: tests/cmdresolution.test
===================================================================
diff -u -ra963e8896fd07c345ccfa034cbd043344edbf083 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/cmdresolution.test	(.../cmdresolution.test)	(revision a963e8896fd07c345ccfa034cbd043344edbf083)
+++ tests/cmdresolution.test	(.../cmdresolution.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -2,6 +2,9 @@
 #
 # testing cmd resolution
 #
+
+package prefer latest
+
 package require nx
 package require XOTcl
 package require nx::test
Index: tests/disposition.test
===================================================================
diff -u -rfca63858221119209f3730ed2e1b997316c1e5e6 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/disposition.test	(.../disposition.test)	(revision fca63858221119209f3730ed2e1b997316c1e5e6)
+++ tests/disposition.test	(.../disposition.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,5 @@
 # -*- Tcl -*-
+
 package prefer latest
 package req nx
 
Index: tests/forward.test
===================================================================
diff -u -r6debf9659b2ad3fa8f4d83fb7cf54950da0f083c -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/forward.test	(.../forward.test)	(revision 6debf9659b2ad3fa8f4d83fb7cf54950da0f083c)
+++ tests/forward.test	(.../forward.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package require nx
 package require nx::test
 
Index: tests/info-method.test
===================================================================
diff -u -rf934951db464db1a6f39ac98290ecde17a466cd7 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/info-method.test	(.../info-method.test)	(revision f934951db464db1a6f39ac98290ecde17a466cd7)
+++ tests/info-method.test	(.../info-method.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package req nx
 ::nx::configure defaultMethodCallProtection false
 package require nx::test
Index: tests/info-variable.test
===================================================================
diff -u -r1d2bdbea2141f159f982e8dde0f9b0a6778a8b71 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/info-variable.test	(.../info-variable.test)	(revision 1d2bdbea2141f159f982e8dde0f9b0a6778a8b71)
+++ tests/info-variable.test	(.../info-variable.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package req nx
 package req nx::test
 
Index: tests/interceptor-slot.test
===================================================================
diff -u -r71f9dc841dae59d23d3757914459449aa08ee70f -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/interceptor-slot.test	(.../interceptor-slot.test)	(revision 71f9dc841dae59d23d3757914459449aa08ee70f)
+++ tests/interceptor-slot.test	(.../interceptor-slot.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package require nx::test
 
 nx::Class create M {
Index: tests/interp.test
===================================================================
diff -u -r357028ca6e4ffd7ec4ed240e75c9c001f9c4a8cc -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/interp.test	(.../interp.test)	(revision 357028ca6e4ffd7ec4ed240e75c9c001f9c4a8cc)
+++ tests/interp.test	(.../interp.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package req nx::test
 
 proc traceStderr args {
Index: tests/introspection.test
===================================================================
diff -u -r275da34d3d7a874a451eced58242b738c8a37d1a -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/introspection.test	(.../introspection.test)	(revision 275da34d3d7a874a451eced58242b738c8a37d1a)
+++ tests/introspection.test	(.../introspection.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package req nx::test
 
 #
Index: tests/linearization.test
===================================================================
diff -u -ra963e8896fd07c345ccfa034cbd043344edbf083 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/linearization.test	(.../linearization.test)	(revision a963e8896fd07c345ccfa034cbd043344edbf083)
+++ tests/linearization.test	(.../linearization.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,3 +1,5 @@
+package prefer latest
+
 package require nx::test
 
 proc direct-constraints {obj} {
Index: tests/method-parameter.test
===================================================================
diff -u -r2a955681817e4db4776d7ae904babe8053c5ad74 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/method-parameter.test	(.../method-parameter.test)	(revision 2a955681817e4db4776d7ae904babe8053c5ad74)
+++ tests/method-parameter.test	(.../method-parameter.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package require nx
 package require nx::test
 
Index: tests/method-require.test
===================================================================
diff -u -r2a3ac3f00afd5c5cfdfb1a9fff667cdec5b861be -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/method-require.test	(.../method-require.test)	(revision 2a3ac3f00afd5c5cfdfb1a9fff667cdec5b861be)
+++ tests/method-require.test	(.../method-require.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package require nx
 package require nx::test
 
Index: tests/methods.test
===================================================================
diff -u -rbaee0c34119f4b237787204b8c3e64bc04c05782 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/methods.test	(.../methods.test)	(revision baee0c34119f4b237787204b8c3e64bc04c05782)
+++ tests/methods.test	(.../methods.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package require nx
 package require nx::test
 
Index: tests/mixinof.test
===================================================================
diff -u -r0f881e4bc45e927c8d84c1b1b468ef7537cb9b03 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/mixinof.test	(.../mixinof.test)	(revision 0f881e4bc45e927c8d84c1b1b468ef7537cb9b03)
+++ tests/mixinof.test	(.../mixinof.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,5 +1,8 @@
 # -*- Tcl -*-
 # testing mixinof
+
+package prefer latest
+
 package require nx
 package require nx::test
 
Index: tests/msgcat.test
===================================================================
diff -u -r071b5e4db5a7b3c002e30d63f410dd3abb797629 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/msgcat.test	(.../msgcat.test)	(revision 071b5e4db5a7b3c002e30d63f410dd3abb797629)
+++ tests/msgcat.test	(.../msgcat.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package req nx::test
 
 package req msgcat
Index: tests/nsf-cmd.test
===================================================================
diff -u -r167e23695b39cfea448f4e0b4d0ea0a6066d875c -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/nsf-cmd.test	(.../nsf-cmd.test)	(revision 167e23695b39cfea448f4e0b4d0ea0a6066d875c)
+++ tests/nsf-cmd.test	(.../nsf-cmd.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,3 +1,5 @@
+package prefer latest
+
 package require nx::test
 
 set ::tcl86 [package vsatisfies [package req Tcl] 8.6]
Index: tests/parameters.test
===================================================================
diff -u -r1711d2463a88d72589e00a87b0a0842cf8e7f9fa -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/parameters.test	(.../parameters.test)	(revision 1711d2463a88d72589e00a87b0a0842cf8e7f9fa)
+++ tests/parameters.test	(.../parameters.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package require nx
 package require nx::test
 
Index: tests/plain-object-method.test
===================================================================
diff -u -rc4f449cb353be812ba6502ef8e9587e87881f59b -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/plain-object-method.test	(.../plain-object-method.test)	(revision c4f449cb353be812ba6502ef8e9587e87881f59b)
+++ tests/plain-object-method.test	(.../plain-object-method.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package require nx::test
 
 nx::test case plain-methods-0 {
Index: tests/properties.test
===================================================================
diff -u -ra8c1439e8965d31f21dc61903ffbd3bc1c2e7635 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/properties.test	(.../properties.test)	(revision a8c1439e8965d31f21dc61903ffbd3bc1c2e7635)
+++ tests/properties.test	(.../properties.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,5 +1,7 @@
 # -*- Tcl -*-
 
+package prefer latest
+
 package req nx::test
 
 #
Index: tests/protected.test
===================================================================
diff -u -r0697a2e33aa13c3642583e9533ed5ccf95f29250 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/protected.test	(.../protected.test)	(revision 0697a2e33aa13c3642583e9533ed5ccf95f29250)
+++ tests/protected.test	(.../protected.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package require nx
 package require nx::test
 
Index: tests/returns.test
===================================================================
diff -u -rc4f449cb353be812ba6502ef8e9587e87881f59b -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/returns.test	(.../returns.test)	(revision c4f449cb353be812ba6502ef8e9587e87881f59b)
+++ tests/returns.test	(.../returns.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package require nx
 
 ::nx::configure defaultMethodCallProtection false
Index: tests/serialize.test
===================================================================
diff -u -re5a313d7150ca82b5e8ac1b0953ee90d18cb4dd2 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/serialize.test	(.../serialize.test)	(revision e5a313d7150ca82b5e8ac1b0953ee90d18cb4dd2)
+++ tests/serialize.test	(.../serialize.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,5 +1,7 @@
 # -*- Tcl -*-
 
+package prefer latest
+
 package req nx::test
 package req nx::serializer
 
Index: tests/shells.test
===================================================================
diff -u -r1d2bdbea2141f159f982e8dde0f9b0a6778a8b71 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/shells.test	(.../shells.test)	(revision 1d2bdbea2141f159f982e8dde0f9b0a6778a8b71)
+++ tests/shells.test	(.../shells.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package require nx
 package require nx::test
 
Index: tests/submethods.test
===================================================================
diff -u -r156a37fe92eea9dcf0ec82cc6bf333293fcf2ecd -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/submethods.test	(.../submethods.test)	(revision 156a37fe92eea9dcf0ec82cc6bf333293fcf2ecd)
+++ tests/submethods.test	(.../submethods.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package require nx::test
 
 ::nx::configure defaultMethodCallProtection false
Index: tests/substdefault.test
===================================================================
diff -u -rd4706d18f1881fd9d7c0ba017b56002dd227912e -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/substdefault.test	(.../substdefault.test)	(revision d4706d18f1881fd9d7c0ba017b56002dd227912e)
+++ tests/substdefault.test	(.../substdefault.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- tcl -*-
+
+package prefer latest
+
 package req nx::test
 
 #
Index: tests/tcl86.test
===================================================================
diff -u -ra963e8896fd07c345ccfa034cbd043344edbf083 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/tcl86.test	(.../tcl86.test)	(revision a963e8896fd07c345ccfa034cbd043344edbf083)
+++ tests/tcl86.test	(.../tcl86.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package require nx
 package require nx::test
 
Index: tests/tcloo.test
===================================================================
diff -u -ra963e8896fd07c345ccfa034cbd043344edbf083 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/tcloo.test	(.../tcloo.test)	(revision a963e8896fd07c345ccfa034cbd043344edbf083)
+++ tests/tcloo.test	(.../tcloo.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package req nx
 package req nx::test
 
Index: tests/traits.test
===================================================================
diff -u -r6751144a362a62d47801ee1b59caed7aa85f518e -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/traits.test	(.../traits.test)	(revision 6751144a362a62d47801ee1b59caed7aa85f518e)
+++ tests/traits.test	(.../traits.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,3 +1,5 @@
+package prefer latest
+
 package require nx::trait
 package require nx::test
 
Index: tests/var-access.test
===================================================================
diff -u -re5a313d7150ca82b5e8ac1b0953ee90d18cb4dd2 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/var-access.test	(.../var-access.test)	(revision e5a313d7150ca82b5e8ac1b0953ee90d18cb4dd2)
+++ tests/var-access.test	(.../var-access.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package require nx
 ::nx::configure defaultMethodCallProtection false
 package require nx::test
Index: tests/varresolution.test
===================================================================
diff -u -re5a313d7150ca82b5e8ac1b0953ee90d18cb4dd2 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/varresolution.test	(.../varresolution.test)	(revision e5a313d7150ca82b5e8ac1b0953ee90d18cb4dd2)
+++ tests/varresolution.test	(.../varresolution.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -2,6 +2,9 @@
 #
 # testing var resolution
 #
+
+package prefer latest
+
 package require nx
 package require nx::test
 
Index: tests/volatile.test
===================================================================
diff -u -r74b7a4066526ff5f5a8080ed907f71c9ed5c7700 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/volatile.test	(.../volatile.test)	(revision 74b7a4066526ff5f5a8080ed907f71c9ed5c7700)
+++ tests/volatile.test	(.../volatile.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,4 +1,7 @@
 # -*- Tcl -*-
+
+package prefer latest
+
 package req nx::test
 
 package prefer latest