- Update to release 5.3.0
* Added the thread.idle mallctl which hints that the calling
thread will be idle for a nontrivial period of time.
* Allow small size classes to be the maximum size class to
cache in the thread-specific cache, through the
opt.[lg_]tcache_max option.
* Make the behavior of realloc(ptr, 0) configurable with
opt.zero_realloc.
* Support C++17 over-aligned allocation.
* Add the thread.peak mallctl for approximate per-thread peak
memory tracking.
* Add high resolution timestamp support for profiling.
- Drop use-volatile-to-workaround-buffer-overflow-false-pos.patch
(merged)