I am writing a book using LibreOffice. Until recently I used Ubuntu 12.04 and LibreOffice 22.214.171.124. The body text of the book is typeset with FreeSerif 11pt. Before my upgrade to Ubuntu 14.04 and LibreOffice 126.96.36.199 (which came with 14.04), the book had 210 pages. After the upgrade the book has 195 pages, because the FreeSerif font now was more condensed.
When I open the odt file in a different computer with Ubuntu Desktop 12.04 and LibreOffice 188.8.131.52, the book has 210 pages, and so it has when I open the same file in a computer with Windows 7 and LibreOffice 184.108.40.206 the book has 210 pages. (Of course the Free* fonts are installed in all computers.)
So with 14.04 and 220.127.116.11 the FreeSerif font is rendered differently. The difference is big, about 7%, which makes the text look ugly, and the line breaks and the hyphenation have been changed, not to say ruined.
Obviously, there is something wrong with the rendering of the FreeSerif font in the combination of Ubuntu Desktop 14.04 and LibreOffice 18.104.22.168. Will this error be corrected?