[PATCH] NEWS: Mention tcache improvements

[Adhemerval Zanella Netto]

On 08/07/25 13:27, Wilco Dijkstra wrote:
> Hi Adhemerval,
> 
>> LGTM, thanks.  I have not followed in detail this development, why can't
>> make it the default? It because of memory usage increase?
> 
> It's still experimental and not as well tested (Florian just reported an issue with it).
> Also it could cache ~170MB per thread, and since the tcache only gets flushed
> when a thread terminates, this could increase memory usage.

Fair enough, gating it through a tunable seems the best approach.