Skip to main content

​
[0.0.11] - 2026.09.26

​
Fixed

  • Callbacks could still be running after rtc_destroy returned: previously rtc_destroy only cleared the callbacks without waiting for callbacks already in progress, so freeing context after it could crash the caller. rtc_destroy now waits for all in-flight callbacks to return before it returns, after which context can be freed safely
  • Keyframe callbacks still fired after a local track was destroyed: rtc_destroy_local_track now removes the keyframe callback and waits for in-flight callbacks to return
  • Calling rtc_destroy in the disconnect callback deadlocked: you can now destroy the instance from any of its callbacks
  • When an instance is destroyed before an asynchronous join (rtc_join_channel) completes, it no longer stays in the channel indefinitely without leaving
The functions and struct layouts are identical to 0.0.10, so you can replace the library files directly. Code that waited a fixed time (sleep) after destroying to work around the issues above can be removed after upgrading.

​
[0.0.10] - 2026.09.26

​
Changed

  • Debug symbols are stripped from the library files, reducing the size of the Linux librtc.so by about 27% (17.6 MB → 12.8 MB). Functions and behavior are unchanged, and crash stack traces still print function names and line numbers
The interface is identical to 0.0.9; programs compiled against the 0.0.9 header can replace the library files directly.

​
[0.0.9] - 2026.09.26

​
Added

  • rtc_get_last_error: get the specific error code and reason after a function returns RTC_ERROR / RTC_TIMEOUT, without digging through the logs
  • rtc_set_disconnected_callback: reports the disconnect reason (removed from the channel / replaced by another session with the same uid / heartbeat timeout / channel destroyed) when the connection finally ends, with the RTC_DISCONNECT_* macros
  • rtc_get_local_user_info: get the local uid / sid
  • rtc_get_channel_info / rtc_free_channel_info and the rtc_channel_info_t struct
  • Added the macOS Apple Silicon platform (librtc.dylib)

​
Fixed

  • Joining a channel is about 3 seconds faster: previously every join waited idly for about 3 seconds before starting to establish the signaling connection; it now connects immediately (measured join time 3.4 s → 0.4 s). The reconnect interval after a disconnect is unchanged
  • Fixed an issue where the runtime treated the instance handle as an invalid pointer at certain moments and terminated the process
  • When the channel’s media streaming engine configuration is unknown, the SDK falls back to the default engine instead of failing to join

​
Breaking changes

  • Removed the rtc_user_info_t.link_id field (it was always 0 and had no actual meaning)
The memory layout of rtc_user_info_t changes as a result. Upgrading from 0.0.8 or earlier requires recompiling with the new librtc.h; replacing only the library files reads stream_tracks and other fields incorrectly, or even crashes. Just delete any code that references link_id.
The callback context must be a real pointer (or NULL). Don’t cast small integers to pointers to use as IDs; see Instance and channel · Callback registration.