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From: Eli Zaretskii <eliz@gnu.org>
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Subject: Re: Hash table GC
Date: Mon, 14 Oct 2024 17:00:18 +0300
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To: Anand Tamariya <atamariya@gmail.com>
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 (message from Anand Tamariya on Mon, 14 Oct 2024 10:02:24 +0530)
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> From: Anand Tamariya <atamariya@gmail.com>
> Date: Mon, 14 Oct 2024 10:02:24 +0530
> 
> If I've created a hash table with :weakness nil, how do I release it for GC when it is no longer needed?

Why are you asking specifically about hash-tables?  AFAIK, they are
not different from any other Lisp object in this regard.  Weakness
affects GC of the keys and values, not of the table itself, AFAIU.