Juri Linkov <juri@linkov.net> writes:

>>>>> Add support for updating the *Completions* buffer as you type,
>>>>> controlled by a new completion metadata symbol 'eager-update and
>>>>> new defcustom completion-eager-update.
>>>>>
>>>>> You can configure a completion category to update *Completions*
>>>>> as you type by setting completion-category-overrides
>>>>> appropriately; or set completion-eager-update to t to always
>>>>> update *Completions* as you type.
>>>>>
>>>>> This is similar to the recently added completion-eager-display.
>>>>
>>>> Thanks, now finally we'll have this long-needed feature.
>>
>> Hi, have you gotten a chance to try this out?
>
> Yes, I tried it out, and everything worked nicely.
>
>> I have been running this for several completion categories at my site
>> and have had no complaints.
>
> Could you send a complete patch with a NEWS entry?

Yes, attached.