The release notes say this:
o Fixed application.
o Fixed global variables initialisation with relation to multiple content streams. (SPR 1995220)
o Fixed FOM object iteration using JavaScript for..in loops which wasn’t working. (SPR 1995178)
o Fixed issue with sprint where combined footnotes did not trim back when their references got displaced. (SPR 1976267)
o Fixed problem with frame rules where top rule would be 0 width when negative radius corners are used. (SPR 1979499)
o Implemented <?tbsimcol 3> so that cells aren’t treated as top of column, but do have the cell top drop applied. (SPR 1789953)
o Fixed problem where pseqbreak inserts a blank page too late when issued at the start of the document.
o Fixed crash when inquiring fTypeface objects for document embedded fonts. (SPR 1976966)
o Fixed crash when using startPattern and endPattern on fRule objcets. (SPR 1980885)
o Modified behaviour of <?thylwdis> when hyphenating, if the last word is too wide for the measure, force hyphenation. (SPR 1983264)
o Removed need to enclose fTableColumn.
o Fixed problem with frame gutter rule properties not working in FOM. (SPR 1983259)
o Implemented support for flexible width blocks being rotated. (SPR 1981064)
o Improved handling of margins for tables or blocks that are rotated. (SPR 1984495)
o Fixed issues where property preservation is turned on mid-cell and allowing properties to persist into subsequent cells or beyond the table. (SPR 1985179)
o Fixed issues where property preservation is turned on mid-block and allowing properties to persist beyond the end of the block. (SPR 1988250)
o Fixed lockup when content is too wide for a column and the content is being skipped due to an overflow. (SPR 1988250)
o Fixed bad line breaking issue with punctuation in Thai text. (SPR 1989484)
o Fixed keeps issue when auto-leading causes line to overflow. (SPR 1989474)
o Fixed error when using a character entity reference that falls out of the range of valid characters for the Standard version (SPR 1974269)
o Fixed problem with frame shift incorrectly calculating left / right and odd / even conditions during formatting. (SPR 1986600)
o Implemented support for nested tables or blocks within a column header. (SPR 1952447)
o Fixed problem with scaled inline EPS files. (SPR 1987615)
o Improved accuracy of imported image size in APP. (SPR 1992457)
o Fixed crash when converting FOM stream objects to colours. (SPR 1993481)
o Fixed hyphenation of a word containing a JS Script tag. (SPR 1988721)
o Fixed problem with row widows & orphans and cellkeeptogether when in overflow mode 1. (SPR 1994733)
o Added support for Arabic, Hebrew and Thai grouping to the Advanced XML Indexes. (SPR 1993586)
o Fixed problem loading linked tags using x3b2:// syntax. (SPR 1994703)
o Fixed missing fonts when TrueType and OpenType fonts have same family name. (SPR 1975469)
o Fixed corruption in sfctrl.3ad when appending fonts with long names. (SPR 1975469)
o Fixed an issue where properties could be corrupt when a block overflowed that was within a table breaking mid-row and with preserve properties enabled. (SPR 1988250)
o Fixed an issue where properties could be corrupt when overflowing between rows within a table and with preserve properties enabled. (SPR 1988250)
o Fixed display order of numbers containing ‘European Number Terminator’ and ‘European Number Separator’ characters in Arabic text. (SPR 2000497)
o Fixed use of bottom margin in a block that breaks across frame columns (SPR 1972564)
o Fixed problem loading linked tags using \{:utf8\} encoding syntax. (SPR 1994703)
The FOM release notes say
o Added fFormatting.
o Added subscriptStart/
o Added hyphenationOnLastWo
o Added parameter to fFormatting.
o Added properties to fRaster and fGraphic to provide access to size information
o Added fFormatting.
o Added fDocumentProperty object for global document properties
o Added properties on fPDFPrinter and fPSPrinter to support outputting document properties
o Added fApplication.
o Added fParagraph.hyphenat
o Added constants to fIndexAdvancedItem.
o Added fStyle.hyphenationC
o Added fStyle.unipairTable property