lyx_mirror/lib/RELEASE-NOTES
Jean-Marc Lasgouttes 9fe101e890 Remove support for pixmap cache
This code has issues and there is no evidence that it improves performance.

Remove LyXRC variable \use_pixmap_cache and update rc format to 29.

Now the global pixmap cache is only used by GuiCompleter. Therefore
there is no need to reset it when fonts change.
2018-10-07 14:56:55 +02:00

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!Important Changes in LyX 2.4.0
!!Interface changes
- It is now possible to cancel background export processes. A menu entry
to do so will appear on the Document menu when such a process is underway.
The LFUN for this is export-cancel.
!!Documents compilation process and images conversion
!!!The following pref variables were added in 2.4:
!!!The following pref variables were changed in 2.4:
!!!The following pref variables are obsoleted in 2.4:
* \font_encoding
The font encoding is now automatically set depending on the document
fonts and languages.
* \use_qimage
This is no longer necessary due to the rewrite of the painter.
* \use_pixmap_cacheqimage
There is no evidence that this painting mode was useful anymore.
* \date_insert_format
The function date-insert has been removed and superseded by info-insert date.
The latter does not need a pref value anymore.
!!!The following new LyX functions have been introduced in 2.4:
* export-cancel: Used to cancel background export processes.
!!!The following LyX functions have been changed in 2.4:
* set-graphics-group was renamed to graphics-set-group.
* info-insert buffer vcs-*: renamed to info-insert vcs *
!!!The following LyX functions have been removed in 2.4:
* date-insert: obsoleted by info-insert date.
!!!The following LyX documents have been moved in 2.4:
!!!The following new folders have been added to the LyX directory
!!!The following preferences files have been removed from the tarball in 2.4:
!!!The following metadata files have been added to the tarball in 2.4:
!!Changes with respect to external programs and libraries in 2.4:
* The Qt5 libraries are now used by default. In order to link against
Qt4 the configure option --disable-qt5 has to be used.
!!Known issues in version 2.4.0
* See http://www.lyx.org/trac/wiki/BugTrackerHome
!!Caveats when upgrading from earlier versions to 2.4.x
* Autotools monolithic build option for building LyX binaries was removed,
for compilation speedup use parallel building on multiple cores instead.
!! If upgrading from a LyX version before 2.3.0
* Please additionally see the release notes from the versions in-between:
https://wiki.lyx.org/LyX/ReleaseNotes
* Several ttf fonts (esint10.ttf, stmary10.ttf, wasy10.ttf) were changed
to reflect the fact that newer Qt libraries do not support displaying certain
codepoints anymore (bug #8493, #10161).
Distribution packagers need to repack those font files in case they are
delivering the fonts as a separated package dependent from core LyX.