PHP Extension 5.17.2 released

• New Feature: Tideways now indicates when session_write_close() was called.
• Bugfix: Profiler::triggerCallgraphOn() now checks callgraph-mode preconditions within the callback instead of during registration, resulting in a more predictable behavior.
• Bugfix: Fix possible crash when calling Profiler::disableCallgraphProfiler() from within an autoloader.