These notes apply between releases 1.0.0 and 1.1.0 of HbbTV:-

  * New functionalities
    * Added HbbTV 1.2.1 +DRM capability
    * Added HbbTV 1.2.1 +PVR capability
    * Added and extended OIPF classes that are not required by HbbTV 1.2.1
    * Added HbbTV security restrictions on channel change by broadcast independent applications
    * Added parsing of the simple application boundary descriptor

  * Other changes
    * The dynamic symbol table (needed to make some symbols visible to the NPAPI plugin) is now part of the HBBTV repository (npapiplugin/dynamic_symbol_table.txt)

  * Various bug fixes

  * API changes
    * Control functions (hbbtv.h)
      * Additional notification function: HBBTV_NotifyLowMemory
      * Additional functions to give the browser access to the DSMCC: HBBTV_DsmccSetCallback, HBBTV_DsmccSetCallback, F_HBBTV_DSMCC_FILE_CALLBACK
      * Additional functions for interaction with generic DRM system: HBBTV_DRMRegister, HBBTV_DRMUnregister, HBBTV_NotifyDRMMessageResult, HBBTV_NotifyDRMRightsError
      * Additional function HBBTV_SetFreesatCallbacks to set Freesat specific callback functions
    * Javascript extension interface (hbbtv_js.h)
      * Additional functions to fix the implementation of video/broadcast and a/v control selectComponent and unselectComponent
      *Additional functions for the new functionalities
    * System interface (hbbtv_sif_*.h)
      * Removed HBBTV_PVRRecord and added HBBTV_PVRRecordCRID and HBBTV_PVRRecordEventID instead
      * Additional PVR functions: HBBTV_PVRGetScheduledRecordingDetails, HBBTV_PVRReleaseScheduledRecordingDetails, HBBTV_PVRGetRecordingDetails, HBBTV_PVRReleaseRecordingDetails
      * Additional Service functions: HBBTV_GetNetworkID, HBBTV_GetMajorChannel, HBBTV_GetServiceLocked, HBBTV_GetServiceRunning
      * Extended Service structures: S_HBBTV_EVENT_DETAILS, S_HBBTV_SERVICE_DETAILS
      * Added HBBTV_GetDemuxPath to retrieve the demux path needed to configure the DSMCC engine
      * Changed S_HBBTV_COMPONENT_DETAILS to allow a negative value of component_tag
      * Removed the concept of RID from HBBTV_WBSetUrl and relative callback, the callback now passes the URL back with the result.