Draft: Tests for testing against old clients session files

basice2e/old-clients.sh

+set -e
+
+#echo Initialization Upgrade
+#OLDCLIENT="client-release" OLDDIVISE=2 ./run.sh > init-upgrade.txt 2>&1
+
+#echo Initialization Cross-Version
+#OLDCLIENT="client-release" OLDDIVISE=0 ./run.sh > init-cross-version.txt 2>&1
+
+echo Upgraded Messaging pass 1
+./run.sh > messaging-upgraded-pass1.txt 2>&1
+echo Upgraded Messaging pass 2
+CLIENTSUFFIX="-release" SKIPCLEAN=1 EXTRACLIENTFLAGS="--force-legacy" ./run.sh > messaging-upgraded-pass2.txt 2>&1
+
+echo Cross-Version Messaging pass 1
+./run.sh > messaging-cross-pass1.txt 2>&1
+echo Cross-Version Messaging pass 2
+CLIENTSUFFIX="-release" SKIPCLEAN=1 CLIENTTWO="client-release" ./run.sh > messaging-cross-pass2.txt 2>&1
+
+echo Cross-Version Full
+CLIENTTWO="client-release" ./run.sh > full-crossversion.txt 2>&1 
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