X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=UPGRADING;h=f28461caf17584c0fbb2fafd1faf55fdd58e53d6;hb=refs%2Fheads%2F2.3.4-3;hp=0130ae7d96fe8691550abedbc1d8f3066e85bd78;hpb=7a507c3745312ac1adbfc46aa15872ea73dbf632;p=lyx.git

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-How do I upgrade my existing LyX system to version 2.2.x?
+How do I upgrade my existing LyX system to version 2.3.x?
 ---------------------------------------------------------
 
+* Upgrading from LyX 2.2.x:
+
+The external_templates file has been split into one file per template,
+which are now located in lib/xtemplates/*.xtemplate. This makes it easier
+to add new templates or modify existing ones. If you have modified
+the external_templates file, you will have to move the modifications to
+the respective *.xtemplate file manually.
+
+By default, LyX 2.3 outputs en- and em-dashes as -- and --- respectively,
+so that a line break can occur in the output immediately after the dash.
+Sometimes, this results in undesired line breaks or overfull lines due to
+suppression of hyphenation in the word preceding the dash.
+Select "Document->Settings->Fonts->Disallow line breaks after dashes"
+to keep the LyX 2.2 behaviour.
+See chapter 3.9.1.1, "Dashes and Line Breaks", of the User Guide
+for details.
+
+If trying to compile documents using R scripts and sweave/knitr, LyX
+2.3.x would not allow for re-running the R scripts, unless the user:
+1) explicitly disables the "Forbid use of needauth converters"
+option in the LyX preferences;
+2) provides explicit consent to the use of the converter on the first
+compilation of the R-enhanced document.
+
+LyX now gives a warning if a document mixes title and non-title layouts.
+In some cases, this warning is harmless, but in other cases the document has
+a serious problem even though the LaTeX command does not exit with error. For
+example, create a document with a title layout, then a standard layout, and
+then an author layout, and you will see in the PDF that the author is not
+typeset as an author.
+
 * Upgrading from LyX 2.1.x:
 
 The format of preference and session files has changed. LyX 2.2.x is able to