http://files.jriver.com/mediacenter/channels/v21/latest/MediaCenter210023.exe
21.0.23 (11/17/2015)
1. Fixed: The search box could be too tall.
2. Fixed: Minimized action windows could disappear instead of minimize.
3. Fixed: Attached drives would show up in Action Window > Camera.
21.0.22 (11/16/2015)
1. Fixed: The publisher listed on the uninstall dialog would be "J. River, Inc." instead of "JRiver, Inc.".
2. Fixed: Double-click in an empty area of the Recording Rules list would crash.
3. Fixed: Further problems with the Noire skin on Windows 7.
4. Fixed: Search Window magnifying glass icon was offset too far to the right on scaled displays.
21.0.21 (11/14/2015)
1. Changed: The splitter in Playing Now is now zone specific so that having two Playing Now views open will allow independent setting of the splitter.
2. Fixed: The skin's close/maximize/restore/minimize buttons were offset to the right in popup windows (off the edge of the window).
3. NEW: MC will create dummy programs to fill in gaps in the programming guide data. Now all active channels will show up in Theater view even if they have no EPG data.
4. Changed: More cancel checking in DLNA threads to hopefully prevent hangs, crashes from hard killed threads.
21.0.20 (11/13/2015)
1. Fixed: The Library/GetStats function in MCWS was returning an error code (even though the results were there).
2. Changed: Program IDs and Series IDs (if available) are saved in new fields "Program ID" and "Series ID" when importing EPG guide data.
3. Fixed: In recent builds newly recorded television sports shows did not show up under Video / Shows / Recent in Theater view, instead they appeared in Video / Other / Recent.
4. Changed: Consolidated and renamed video conversion profile listings (they are now consistently named in all areas where they are used).
5. Changed: Adjusted the way searches are handled to improve the results.
6. Fixed: Searching for users in a smartlist wasn't working.
7. NEW: Option to use the DVD episode order when doing manual Get Movie & TV Info lookup for TV Shows.
8. Changed: Updated Slovak translation (thanks Peter Lukac).
9. Fixed: When using PercData as EPG source, all programs scheduled for midnight UTC time were missing.
10. Fixed: DSP Studio > Output Format wouldn't save the sample rates properly when running with a translation.
11. NEW: Theater view television guide grid is color-coded according to show categories. The following types are colored: Movies (of all genres), Educational, Children, Sports, News.
12. Changed: Made the minimum size of DSP Studio a little smaller.
13. Changed: The Action Window timer for starting an import only runs if the frame is visible (so minimizing the program will yield the run).
14. Fixed: Thumbnail lists could have a wrong size for the ideal aspect ratio.
15. Changed: Toned down the speed and number of blinks of the Action Window so it now blinks twice and stops.
16. Changed: When entering Theater view television guide, MC always selects the currently playing program (if any).
17. Changed: Updated French translation (thanks p.v.).
18. NEW: Television guide grid in Theater view is updated every half hour.
19. NEW: Added an MCC command MCC_SET_ZONE_VISIBLE (22033) to show the current zone in standard view.
20. Fixed: DLNA code was crashing when a problem device on the network was causing our Accept call to hang, it wasn't getting canceled so thread was hard killed leading to crashes.
21. Fixed: There was a memory leak in the socket code (all platforms).
22. Changed: Socket error messages in the log are now readable strings (windows) and implemented the error codes (linux, mac).
21.0.19 (10/30/2015)
1. Changed: When TV tuner failure occurs MC will not show a popup since an OSD message is already displayed. A popup could interfere with attempt to restart the playback.
2. Changed: Holding Ctrl while clicking pane tag checkboxes will enter "list" mode so that you can select multiple genres, etc.
3. Changed: Added "is not" operator for editing TV recording rules involving "Name", "Series", and "Description".
4. Changed: "Modify Rules" is renamed "Edit Rules" on TV subscription wizard page.
5. Fixed: Edit controls in read-only mode allowed backspace to delete characters.
6. Changed: Added text instruction on TV recording rules editing window, regarding AND and OR operations on rules.
7. NEW: Editing a checkbox type field in the new Tag Action Window will show a checkbox instead of a dropbox.
8. Changed: Editing a checkbox type field in Pane tagging is now possible.
9. Changed: Opening the new Tag Action Window with shift held will then always open the new tag window after that (just press shift again to switch back).
10. Changed: Updated Italian translation file (thanks Matteo).
11. Fixed: Flickering screen on the edges when playing video on certain computers in Red October Standard, in build 18.
12. Changed: Improved duplication avoidance when dealing with subscription television recording rules with "all channels" option.
13. Fixed: WebGizmo did not work in recent builds.
14. Fixed: Video transcoding profiles which used MP2 or MP3 audio did not function properly.
21.0.18 (10/26/2015)
1. Changed: When picking 'Convert Format' the Action Window page will blink to make it more obvious where the focus should be.
2. Fixed: Action Window pages weren't blinking properly.
3. NEW: Improved support for video seeking with DLNA renderers which do not support time-based seeking (ie. byte-seeking).
4. Changed: Allowing 'Concert' media sub types in the Get Movie & TV Info... tool.
5. Changed: Made the step size of the OSD when controlling color controls smaller.
6. Fixed: HEVC 10-bit hardware decoding is supported in Red October Standard on supported hardware.
7. Fixed: Image playback wasn't disabling the system from sleeping.
8. NEW: A new system for setting up television subscription recording.
9. Fixed: RAW images could have thumbnails that were rotated incorrectly (hopefully fixed, but feedback appreciated).
10. Changed: TV subscription recording rule name and program name are independent of each other and can be independently edited on the subscription wizard.
11. Changed: The "Channel" multiple-selection drop list for search based subscription on TV recording wizard now uses "selected items on top" style.
12. Changed: The XML files created by mc2xml will be deleted 24 hours after they are created, instead of waiting until MC restarts (but restarting MC will delete them too).
13. NEW: If a TV tuner fails to play a TV channel, MC will put it in an error state temporarily, and retry playing, so it will find another tuner for the job.
14. Fixed: Using the Move/Copy Fields tool on the Date field would end up with wacky values in the date (because it's actually a floating point number) instead of taking the value and interpreting it as a date.