Update the framesize of the audio signal to analyze in tone detector, depending on the chosen sampling rate. The audio sample duration is then always 20 ms.

Test if a tone has really been played before the validation of the detection.

Reduce the estimated delay in order to add a margin for AEC, for all systems. The margin is computed in percent of the estimated delay.

Replace deprecated function in test_ecc.c by linphone_core_start_echo_canceller_calibration.

Fix crash happening in rare case when an I/O error happens after a Chatroom SUBSCRIBE, caused by the destruction of the Op during the notification of the termination of the subscription.

    Before this commit, the dependency was broken in Core::releaseAccounts()
    which caused a crash if an application called
    linphone_core_get_proxy_config_list after the core was in the
    LinphoneGlobalOff state

    Do not wrap linphone_account_get_conference_information_list_2

    Add linphone_conference_scheduler_send_invitations_2 that takes
    conference parameters in instead pf deprecated chat room parameters

a clean up timer to ensure that orphan conference are cleaned within a
user defined time window

A conference (and its conference information) on a server is deleted if
the last participant leaves the conference after the end time is elapsed
otherwise it is deleted by the above mentioned timer should it be set.

Participants can be added after the end time if there is at least one
participant in the conference

Dialout conferences are cleaned up as soon as the last participant exits
the conference

Rework iOS AudioUnit in order to use a MSWorkerThread rather than a dispatch_async(). This fixes crashes due to mutiple threads possibly running into AudioUnitStart() in rare conditions.

    core in order to keep the backward compatibility.

    The SDK now stores the addresses of the conference without the gr
    parameter as it will negatively affect the high availability capability
    of a server and it will make it dependent on keeping the same gr all the
    time. Therefore clients might be lead to call the conference without
    specifying the gr parameter in the To field of the INVITE.
    If a conference address was stored with the gr parameter, the core would
    not be able to find it as it compares strings and not Address objects

chatroom from conferences.
Add methods in the public API to allow application to search only
conference informations with a given capability

Create event handler if not already done when exhuming the chatroom

Avoid changing SSRC of main stream if not needed when changing layout

Updated msAAudio to prevent crash on Android + updated msAndroidCamera2 to add missing compilation flags

Updated liblinphone to filter out duplicates in Friend & fix getAddresses() not returning the full list if addresses where added outside of edit()/done()

Updated mediastreamer2 to prevent leaving DnD mode on Android when an incoming early media call is received

Do not block in linphone_core_iterate() while the are unregistrations to perform after calling linphone_core_stop_async().
Fix nuget package README.md.
Fix memory leak in bctoolbox's logging feature.