Sync SDL3 wiki -> header

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include/SDL3/SDL_atomic.h

@@ -610,7 +610,7 @@ extern SDL_DECLSPEC Uint32 SDLCALL SDL_GetAtomicU32(SDL_AtomicU32 *a);
  *
  * \threadsafety It is safe to call this function from any thread.
  *
- * \since This function is available since SDL 3.2.0.
+ * \since This function is available since SDL 3.4.0.
  */
 extern SDL_DECLSPEC Uint32 SDLCALL SDL_AddAtomicU32(SDL_AtomicU32 *a, int v);