+- \\default_length_unit
+ Defines the default length unit: 2 for centimers, 6 for inches.
+
+- \\default_otf_view_format
+ Defines the default output format for documents with non-tex
+ fonts (OpenType fonts).
+
+- \\fullscreen_statusbar
+ Controls whether the statusbar is shown in fullscreen mode.
+
+- \\texinputs_prefix
+ Defines the prefix for the TEXINPUTS environment variable. A
+ single '.' in the paths will get replaced with the current
+ document dir and also non-absolute paths will be prefixed with
+ that dir.
+
+ The default semantics of TEXINPUTS apply, such that, for example,
+ if a path is terminated with a double slash, all subdirectories
+ will also be searched by both the TeX engine and ancillary programs
+ such as dvi previewers or dvips.
+
+ (see also commit 1717ef20)
+
+- \\use_qimage
+ See Caveats section below.
+
+- \\use_system_theme_icons
+ If set to true, LyX tries to use the theme icons as defined by
+ the OS.
+
+
+The following pref variables were changed in 2.1:
+
+- \\mac_like_word_movement -> \\mac_like_cursor_movement
+ When this option is set, the cursor is now moved to the end of
+ the current paragraph on paragraph-down. The pref variable was
+ renamed to better reflect this new behaviour.
+
+
+The following pref variables are obsoleted in 2.1:
+
+- \\default_language and \\default_papersize
+ To set the default language and paper size for new documents, use
+ the "Save As Document Defaults" button in Document > Settings.
+
+
+The following new LyX functions have been introduced:
+
+- ipa-insert
+ Inserts an IPA (International Phonetic Alphabet) inset.
+
+- ipamacro-insert <char>
+ Inserts special IPA macros into the document. <char> can be
+ one of 'tone-falling', 'tone-rising', 'tone-high-rising',
+ 'tone-low-rising', 'tone-high-rising-falling', 'deco bottomtiebar',
+ 'deco toptiebar'.
+
+- spelling-continuously
+ Toggles continuous spell-checking.
+
+- vc-rename
+- vc-copy
+ Renames or copies a file under version control.
+
+- buffer-forall <command>
+ Applies <command> to all non-hidden buffers.
+
+- environment-split
+ Splits the current environment with a Separator.
+
+- branch-master-activate <branch>
+- branch-master-deactivate <branch>
+ Activates or deactivates a branch in a master document from within
+ a child (as opposed to the existing branch-[de]activate, which
+ toggle the branch in the document itself).
+
+- buffer-export-as <format> <filename>
+ Equivalent to the new -export-to command-line switch (see above).
+
+- clipboard-paste-simple
+ Paste the clipboard contents as simple unformatted text.
+ This is also available through a new menu voice within the
+ [Edit]->[Paste Special...] sub-menu.
+
+- view-close
+ Close the current document view only, if there are no more views
+ on the document, either close or hide it (see the new preference
+ option \\close_buffer_with_last_view)
+
+
+The following LyX functions have been changed:
+
+- close-tab-group was renamed to tab-group-close.
+
+- split-view was renamed to view-split.
+
+- break-paragraph was renamed to paragraph-break.
+
+- copy-label-as-reference was renamed to label-copy-as-reference.
+
+
+The following LyX key bindings have been changed:
+
+- The binding "C-w" was moved from "buffer-close" to "view-close"
+ (only in cua.bind).
+
+- sciword.bind was changed significantly (see #8364). The most important
+ change is that "math-delim" commands now work under Windows.
+
+The following LyX documents have been moved:
+
+- 'AEA', 'JASA', 'springer', 'ACM-siggraph', and 'thesis' have been moved
+ from templates to examples (see #8643).
+
+
+The following metadata files have been added to the tarball:
+
+- Linux desktop file specification and scalable icon has been
+ included in the tarball.
+
+- AppData file (appdata.xml). It will not be installed by default and
+ distribution maintainers need to handle this file themselves.
+
+
+Changes with respect to external programs and libraries:
+--------------------------------------------------------
+
+- LyX now links against libmagic (http://www.darwinsys.com/file/) if it is
+ available at compile time. This improves the file format detection of
+ included graphics and other files. The old builtin format detection code
+ is used if libmagic is not available.
+
+- LyX no longer uses gettext for handling the translation files. This
+ especially is an advantage on Windows, where translating strings is faster.
+
+
+Known issues in version 2.1.0
+-----------------------------
+
+- LyX needs to be run under Python 2 and will not work properly on systems
+ where Python 3 is the default binary. See bug #7030 to know how to fix
+ this properly, since simple sheebang conversion in *.py files will not
+ be enough.
+
+
+Caveats when upgrading from earlier versions to 2.1.x
+-------------------------------------------------------
+
+- In order to improve reported scrolling slowness, we changed the way
+ screen painting is done. This, however, can slow down the performance
+ on remote X connections and we provide the \\use_qimage preference
+ variable, which brings back the old way of painting (when set to false).