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* UPGRADING
Richard, there is probably one paragraph about refstyle changes and our intensions in future to be added at the end of this file. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@36171 a592a061-630c-0410-9148-cb99ea01b6c8
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UPGRADING
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UPGRADING
@ -1,6 +1,16 @@
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How do I upgrade my existing LyX system to version 1.6.x?
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How do I upgrade my existing LyX system to version 2.0.x?
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---------------------------------------------------------
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* Upgrading from LyX 1.6.x:
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The format of preference and session files has changed. LyX 2.0.x is
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able to read old files but will save them in the new format.
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The format of layout files has changed but, as before,
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layout2layout.py will convert older versions to the new format
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automatically.
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* Upgrading from LyX 1.5.x:
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The format of preference and session files has changed. LyX 1.6.x is
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@ -82,44 +92,39 @@ have to update them
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Build requirements
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------------------
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LyX 1.6 uses the Qt 4.x toolkit (version 4.2.0 or newer). Contrary to
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previous versions of LyX, it won't build against Qt 2.x or 3.x.
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Furthermore, the XForms frontend was dropped.
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LyX 2.0 uses the Qt 4.x toolkit (version 4.4.0 or newer).
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LyX's graphics handling system has changed substantially. If you
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do not have the JPEG library installed, you may need to install
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it before you can use the graphics capabilities of LyX. If you
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do not have the ImageMagick command-line tools installed, you
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will need to modify the default set up of LyX, or install them,
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in order to get previews of your document's graphics.
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If you do not have the JPEG library installed, you may need to install it
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before you can use the graphics capabilities of LyX. If you do not have the
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ImageMagick command-line tools installed, you will need to modify the default
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set up of LyX, or install them, in order to get previews of your document's
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graphics.
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Document transfer
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-----------------
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* Compatibility with older documents/layouts
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LyX 1.6.x uses an external python script, lyx2lyx, to import documents
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LyX 2.0.x uses an external python script, lyx2lyx, to import documents
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written using previous versions of LyX. All versions of LyX as far back as
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0.10 are supported, so any klyx users still holding out for an alternative
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to xforms will finally be able to put their dinosaur to rest ;-)
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0.10 are supported.
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Of course, this means that you must have python (at least version 2.3.4)
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installed in order to use LyX 1.6.x with your old documents.
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Of course, this means that you must have python (>= 2.3.4, <3)
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installed in order to use LyX 2.0.x with your old documents.
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lyx2lyx also has the framework in place to be able to convert
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documents to an earlier format (which requires python 2.3.4 at
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least). However, these converters have only been written for the
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conversion from 1.6.x to 1.5.x, 1.4.x and 1.3.x, so versions of LyX
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older than 1.3.0 will NOT be able to read documents saved with LyX
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1.6.x. The conversion from 1.6.x to 1.5.x-1.3.x is lossless as long as
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no new features are used. lyx2lyx tries hard to find something
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equivalent for new features such as boxes, but this is known to fail
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sometimes. LyX 1.5.7 contains an updated lyx2lyx that can read
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documents in 1.6.x format.
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lyx2lyx also has the framework in place to be able to convert documents to an
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earlier format (which requires python 2.3.4 at least). However, these
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converters have only been written for the conversion from 2.0.x to 1.6.x,
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1.5.x, 1.4.x and 1.3.x, so versions of LyX older than 1.3.0 will NOT be able to
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read documents saved with LyX 2.0.x. The conversion from 2.0.x to 1.6.x-1.3.x
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is lossless as long as no new features are used. lyx2lyx tries hard to find
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something equivalent for new features such as boxes, but this is known to fail
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sometimes. LyX 1.6.9 contains an updated lyx2lyx that can read documents in
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2.0.x format.
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Furthermore, LyX uses a converter layout2layout.py, also written in python
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that will convert old layout files on the fly. You can also call it manually
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on your layout files if you want to convert them to 1.6.x format permanently.
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on your layout files if you want to convert them to 2.0.x format permanently.
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* Preparing for Unicode:
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