A bunch of bugs were fixed in the new rhythmbox release but it's not purely a bugfix release. Rhythmbox now doesn't use the musicbrainz library but accesses musicbrainz directly. The grilo plugin change doesn't affect us as we don't yet build Rhythmbox with grilo support.
I have run the new rhythmbox and things seemed to work.
Build log attached and my packaging branch.
http://worldofgnome.org/rhythmbox-2-98-has-been-released/
http://git.gnome.org/browse/rhythmbox/tree/NEWS
Overview of changes in Rhythmbox 2.98 "Faults"
===============================================
* New dialog for importing music into the library
* New audio CD metadata lookup library, replacing libmusicbrainz
* Improved transitions between album art images
* Nautilus cluebar buttons now result in the right source
being selected
* Update notification buttons when playback state changes
* Grilo plugin ported to grilo 0.2 API
* Search musicbrainz for album art by album and artist name
* Love/ban buttons visible in last.fm/libre.fm sources
Bugs fixed:
604734 - "Hide" (for MusicBrainz) is missing a mnemonic
653781 - No mention of ALT+S keyboard shortcut in documentation
671705 - lib: Fix deprecated use of g_value_get_char()
673956 - context pane won't resize properly
676007 - Configure doesn't work with dash
676689 - Switching from mp3 to ogg file cases Rhythmbox to stop playing
677079 - Remove markup from UI files
677464 - rhythmbox crashes on startup
677955 - Clicking under/above the time slider causes a pause of the slider and the time label
678138 - Opening properties dialog on MTP device that is not ready crashes Rhythmbox
678208 - Fix memory leak in rb_gst_media_type_matches_profile
678254 - Rhythmbox UI hangs when double clicking on visualisation window
678261 - --no-start option not working
678661 - context plugin uses insecure temporary directory
678923 - Clicking on the seek slider doesn't seek
678995 - Treeview in add podcast dialog lacks border
679222 - Untranslated strings in visualization plugin
679326 - Rhythmbox grilo plugin showing Optical Media when there is no optical media tray
680204 - Incorrectly displays the previous album cover on an album with no cover
680842 - preferences: don't free consumed floating GVariant
681018 - artsearch: try harder to find album art from musicbrainz
681178 - Rapidly switching between internet radio stations results in crash
681259 - audioscrobbler: use single image download for multiple data items
681924 - Notification Plugin: fix updating for Play/Pause
682309 - A bar appears to the left of the volume under some gtk themes
682404 - FTBS grilo plugin in latest git r7d5be17
682677 - cluebar content type buttons don't open app with item visible
682970 - podcast: Handle itms URLs if browser plugin is built
684142 - Last.fm "love track" button not present
684304 - [PATCH] Crash in monitor_entry_file()
684333 - grilo: fix reference counting
I think it sounds reasonable. Are there any changes to the docs that you need to account for?