Add even more mentions of incompatibility with RT 4.2

README

@@ -14,7 +14,7 @@ touch with us at <sales@bestpractical.com>.
 REQUIRED PACKAGES:
 ------------------
 
-o   RT 4.0.14 or later, configured, installed and tested.
+o   RT 4.0.14 or any later release of RT 4.0, but not RT 4.2
 o   Net::Whois::RIPE 1.31 is bundled with RTIR for compatibility with the
     API RTIR uses and for a fix to run without warnings under perl 5.18.
 
@@ -29,7 +29,8 @@ information.
 Installation instructions:
 --------------------------
 
-1) Install RT 4.0.0 or newer following RT's regular installation instructions
+1) Install RT 4.0.14 or a newer 4.0 release following RT's regular
+   installation instructions.  RT 4.2 is not compatible with RTIR 3.0.
 
 2) Run "perl Makefile.PL" to generate a makefile for RTIR.
 

docs/UPGRADING

@@ -24,8 +24,8 @@ lose data.
 
 =item 2
 
-Upgrade your RT installation to RT 4.0.14 or newer following
-its upgrade instructions. Make sure you follow all of the
+Upgrade your RT installation to RT 4.0.14 or a newer RT 4.0 release
+following the upgrade instructions. Make sure you follow all of the
 steps and upgrade both the code and the database.
 
 As noted in the RT documentation, it is recommended that you
@@ -34,6 +34,8 @@ rather than upgrading on top of your RT 3 installation.
 A lot of files have been deleted and moved around in RTIR 3.0,
 so don't copy old RTIR's files.
 
+RTIR 3.0 is not compatible with RT 4.2 releases.
+
 =item 3
 
 Test your upgraded RT. You should be able to start the server,