Index: common.scm
==================================================================
--- common.scm
+++ common.scm
@@ -408,13 +408,22 @@
 
 (define (common:version-changed?)
   (not (equal? (common:get-last-run-version)
                (common:version-signature))))
 
+
+;; From 1.70 to 1.80, db's are compatible.
+
 (define (common:api-changed?)
-  (not (equal? (substring (->string megatest-version) 0 4)
-               (substring (conc (common:get-last-run-version)) 0 4))))
+  (let* (
+    (megatest-major-version (substring (->string megatest-version) 0 4))
+    (run-major-version (substring (conc (common:get-last-run-version)) 0 4))
+   )
+   (and (not (equal? megatest-major-version "1.80"))
+     (not (equal? megatest-major-version megatest-run-version)))
+  )
+)
 
 ;;======================================================================
 ;; Move me elsewhere ...
 ;; RADT => Why do we meed the version check here, this is called only if version misma
 ;;
@@ -602,11 +611,11 @@
 ;;
 (define (common:exit-on-version-changed)
   (if (common:on-homehost?)
       (if (common:api-changed?)
 	  (let* ((mtconf (conc (get-environment-variable "MT_RUN_AREA_HOME") "/megatest.config"))
-                 (dbfile  (conc (get-environment-variable "MT_RUN_AREA_HOME") "/megatest.db"))
+                 (dbfile  (conc (get-environment-variable "MT_RUN_AREA_HOME") ".megatest/main.db"))
                  (read-only (not (file-write-access? dbfile)))
                  (dbstruct (db:setup #t))) ;; (db:setup-db *dbstruct-dbs* *toppath* #f))) ;;  #t)))
 	    (debug:print 0 *default-log-port*
 			 "WARNING: Version mismatch!\n"
 			 "   expected: " (common:version-signature) "\n"
@@ -626,14 +635,14 @@
                (common:cleanup-db dbstruct)))
              ((not (common:file-exists? mtconf))
               (debug:print 0 *default-log-port* "   megatest.config does not exist in this area.  Cannot proceed with megatest version migration.")
               (exit 1))
              ((not (common:file-exists? dbfile))
-              (debug:print 0 *default-log-port* "   megatest.db does not exist in this area.  Cannot proceed with megatest version migration.")
+              (debug:print 0 *default-log-port* "   .megatest/main.db does not exist in this area.  Cannot proceed with megatest version migration.")
               (exit 1))
              ((not (eq? (current-user-id)(file-owner mtconf)))
-              (debug:print 0 *default-log-port* "   You do not own megatest.db in this area.  Cannot proceed with megatest version migration.")
+              (debug:print 0 *default-log-port* "   You do not own .megatest/main.db in this area.  Cannot proceed with megatest version migration.")
               (exit 1))
              (read-only
               (debug:print 0 *default-log-port* "   You have read-only access to this area.  Cannot proceed with megatest version migration.")
               (exit 1))
              (else

Index: megatest-version.scm
==================================================================
--- megatest-version.scm
+++ megatest-version.scm
@@ -18,6 +18,6 @@
 ;; Always use two or four digit decimal
 ;; 1.01, 1.02...1.10,1.11,1.1101 ... 1.99,2.00..
 
 ;; (declare (unit megatest-version))
 
-(define megatest-version 1.7009)
+(define megatest-version 1.8001)