Changelog for liburcu: 0.15.6 -> 0.15.7
Source: ChangeLog

2026-09-11 Userspace RCU 0.15.7
	* call-rcu worker: set CPU affinity on first non-empty dequeue
	* Fix: leaky wfcq tests
	* Fix: test_build.c: Test output mismatch
	* Fix: workqueue leaks mutexes on FreeBSD
	* Fix: call-rcu leaks mutexes on FreeBSD
	* call_rcu: pin per-CPU worker at thread startup
	* urcu-pointer: Add rcu_dereference_sym2() taking the pointer address
	* urcu-pointer: Fix missing memory ordering in rcu_dereference_sym()