fix bug #6584

[lyx.git] / UPGRADING

diff --git a/UPGRADING b/UPGRADING
index 516c94ffb153021fabd36f89e9ef52278e1bfef9..76e2f55231a6654cefad4854ebee47db118ebe25 100644 (file)
--- a/UPGRADING
+++ b/UPGRADING
@@ -6,10 +6,15 @@ How do I upgrade my existing LyX system to version 2.0.x?
 The format of preference and session files has changed. LyX 2.0.x is
 able to read old files but will save them in the new format.
 
-The format of layout files has changed but, as before,
-layout2layout.py will convert older versions to the new format
-automatically.
+The format of layout files has changed but, as before, layout2layout.py
+will convert older versions to the new format automatically.
+
+The syntax of the languages file has been changed. If you use a
+modified languages file, you will need to adapt it to the new syntax.
 
+There has been a large change in how Flex insets are named.
+When exporting back to 1.6.x format user-defined flex insets will not
+be properly reverted. See RELEASE-NOTES for details.
 
 * Upgrading from LyX 1.5.x:
 
@@ -92,7 +97,7 @@ have to update them
 Build requirements
 ------------------
 
-LyX 2.0 uses the Qt 4.x toolkit (version 4.4.0 or newer).
+LyX 2.0 uses the Qt 4.x toolkit (see INSTALL file).
 
 If you do not have the JPEG library installed, you may need to install it
 before you can use the graphics capabilities of LyX. If you do not have the