NEWS: Update from the 2.1.x branch

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+What's new in version 2.1.4?
+----------------------------
+
+LyX 2.1.4 is the fourth maintenance release in the 2.1.x series.
+
+A large number of bugs have been fixed. Many of these were minor, but 
+there were a few crashes we fixed, too, so we encourage all LyX users 
+to upgrade to this version.
+
+
+What's new in version 2.1.3?
+----------------------------
+
+LyX 2.1.3 is the third maintenance release in the 2.1.x series.
+
+A large number of bugs have been fixed, most of them fairly minor. But 
+there were several additional improvements to the lyx2lyx conversion 
+program that should make import of older beamer documents more reliable.
+
+
+What's new in version 2.1.2?
+----------------------------
+
+LyX 2.1.2 is the second maintenance release in the 2.1.x series.
+
+The most important fix here is that we believe we have resolved the problem 
+that led several users to experience seemingly random crashes with 2.1.0, 
+sometimes resulting in dataloss. (This was bug 9049.) These crashes generally 
+happened when the user attempted to save a file containing a table, usually a 
+fairly complex table. A seemingly unrelated bug report concerning a crash when 
+trying to save a default template (bug 9236) led to the solution. That bug has
+also been fixed.
+
+There are also several other, smaller bug-fixes, including several more
+improvements to the lyx2lyx conversion scripts. This should make the import
+of older beamer documents easier.
+
+
+What's new in version 2.1.1?
+----------------------------
+
+LyX 2.1.1 is the first maintenance release in the 2.1.x series. It is bug-
+fixing release, and a whole lot of bugs have been fixed. Please see the
+release announcement for the details.
+
+Several users have reported seemingly random crashes with 2.1.0, sometimes 
+resulting in dataloss. These crashes appear to happen when the user attempts 
+to save a file, and the dataloss occurs because the original LyX file is over-
+written by a corrupt file that then cannot be opened. The seemingly random
+crashes, we believe, are due to auto-save, which is enabled or disabled in
+Tools> Preferences> Document Handling > "Backup documents every...minutes".
+
+Unfortunately, we have been unable to find the cause of this bug, though all
+known reports seem to involve documents that contain tables, and the corrupt 
+file always ends with: \begin_inset Tabular.
+
+To prevent dataloss, we have changed the way LyX saves files if the user
+has not enabled backups. LyX now renames the existing file before 
+attempting to save the new one (in effect, making a temporary backup). 
+Then, if the save fails, the original file can be restored.
+
+
 What's new in version 2.1.0?
 ----------------------------