- Offer to automatically update Java on Windows from 6 to 7
- Fixed library updating with cache enabled
- Made detection of network speed more accurate (thanks,
ExSport!)
- Library scanning interface improvements
- Set a higher maximum memory by default via the Windows
installer for computers with 4GB+ of RAM

- Fixed the startup error introduced in 2.5.2

• General:

- Added "Live Subtitles" which means you can select subtitles
from the Internet via your device. It can be enable on the
Navigation/Share Settings page.
-Improved layout of the Navigation/Share Settings page

• Implemented default subtitle preferences, to use them:

- Either use the "Clean Install" option on Windows or put
"eng,off;*,eng;*,und" into the "Audio/subtitles language
priority" box in the "Subtitles settings" tab on the
Transcoding Settings page
- Fixed DTS muxing with FFmpeg
- Added new "precoder" functionality, useful for plugin
developers
- Added h.264 encoding support to MEncoder (when renderers
specify it)

• Languages:

- Updated Czech translation
- Updated English settings labels
- Updated Simplified Chinese translation (thanks, lovenemesis!)

• External Components:

• Updated h2 database to 1.3.171, which:

- Increases speed
- Improves JDK 7 compatibility

• Updated MPlayer/MEncoder for Windows SB52, which:

- Improves audio sync
- Improves DVD support
- Supports filenames with uncommon characters
- Fixes memory leaks
- Improves sync with Real videos
- Fixes a crash

• Updated Netty to 3.6.3, which:

- Makes browsing more stable

General:

Added option to toggle H.264 remuxing in FFmpeg
Improved stability of Live Subtitles
Re-enabled WMP detection
Speed improvements
Fixed transcoding to Xbox via FFmpeg
Added support for WTV files
A-to-Z virtual folders support sorting options
Fixed a crash with rare MP3 files

Renderers:

Improved Sony Blu-ray Player support (thanks, skeptical!)
Fixed exception on Android
Fixed stuttering issues with Bravia HX TVs

Languages:

Updated Dutch translation (thanks, leroy!)
Updated Italian language (thanks, nocciola82!)

External Components:

Updated FFmpeg for Linux to burek's 2013-04-04 build, which:
Is compiled statically

General:

Fixed audio sync when muxing DTS via FFmpeg
Improved descriptions in GUI
Added support for the file:// protocol in WEB.conf
Protocols are matched before extensions in WEB.conf
Fixed "Can't assign requested address" bug after update to
Java 1.6.0.45 on Mac OS X
Added installation instructions to the Linux distribution
Fixed incorrect server IP address when starting via UMS.exe or
UMS.bat

External Components:

Updated FFmpeg for all operating systems, which:

Fixes RTMP bugs
Improves support for the following codecs/containers:
WMV, MPEG, H.264, Matroska, AVI, AAC, AC-3, WMA,
MP3, FLV, OGG
Improves 60FPS video support
Supports more audio channel layouts
Improves pthread support
Fixes memory leaks
Improves subtitle decoding support
Adds support for subtitles character encoding
conversion
Makes duration estimation more reliable
Adds support for .ape files
Improves memory use when using hardware acceleration
Fixes multithreaded MPEG-4 decoding

Updated Java Runtime Environment automatic downloader for
Windows to 7u21, which:

Has lots of security fixes and improvements

General:
Improved detection of renderers
Improved AAC/M4A support
External Components:
Updated Apache commons-lang to 3.1
Updated thumbnailator to 0.4.3

General:

Made the menu icon on OS X grayscale to fit with most
other programs (thanks, Kefran!)
Made file list population faster
Added option to ignore certain renderer configurations
Improved file compatibility on all renderers

Renderers:

Improved file compatibility on Sony Bravia TVs
Improved file compatibility on Samsung TVs

Languages:

Updated English settings
Updated all language flags
Corrected Slovak language flag
Added language flags for Icelandic, Lithuanian and
Slovenian

General:

Added internal subtitle support to FFmpeg
Added subtitle seeking support to FFmpeg
Added subtitle styling (fontconfig) support to FFmpeg
Added “Prettify filenames” feature, for details on its use see the tooltip on the Navigation tab
Added configuration wizard to simplify common things like network configuration
Added an option to hide/show advanced options, hopefully making things less confusing/daunting for most users
Added VLC video transcoding (thanks, LordQuackstar!)
Added new options to iTunes library browsing: Browse by Artist, Album and Genre
Added the ability to resume videos after closing the program, for details on its use see the tooltip on the Navigation tab
Transcoding quality automatically adjusts for content and network speed by default, allowing wireless users an easier experience
Improved memory defaults on Windows
Improved video transcoding quality by default
Improved audio transcoding quality in FFmpeg by default
Fixed memory leaks
Added tooltips to several options to make them clearer
OS X build runs optimized Java 7 code
Renderers:

Xbox 360 supports 5.1 audio
Faster transcoding on Xbox 360
Added profile for Samsung D7000 TVs
Languages:

Added English (UK) to the list of languages
Updated Czech translation
Updated Spanish translation (thanks, Alfredo Ramos and uman2k!)

UMSBuilder automatically builds the latest revision of UMS for Windows and Linux.
To use it, simply unzip UMSBuilder and run (double-click) Build.bat.

Note: This will build the program from potentially untested code, so while it should usually be OK there are no guarantees.
If you want stability, download the latest official release from our front page.

You can download it here

Changes since 1.4:

Updated Maven to 3.0.5, which:
Improves SSL support
Fixes build failure with JDK 1.7

Updated Java to 1.7.21, which:
Improves security