Correct。A character may be added to XID_Start such as “U+1E100 NYIAKENG PUACHUE HMONG LETTER MA” which is new in Unicode 12

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Steven R. Loomis | @srl295 | git.io/srl295
> El ene. 22, 2020, a las 6:58 a. m., Corentin Jabot via SG16 <sg16_at_[hidden]> escribió:
> 
> 
> 
> On Wed, 22 Jan 2020 at 15:47, Tom Honermann <tom_at_[hidden] <mailto:tom_at_[hidden]>> wrote:
> On 1/22/20 2:56 AM, Corentin Jabot via SG16 wrote:
>> XID_Continue and XID_Start are, in fact, stable
>> https://unicode.org/policies/stability_policy.html <https://unicode.org/policies/stability_policy.html>
> Can you elaborate?  My reading of the stability policy is that once a character has the XID_Start or XID_Continue property that it always will, but that policy doesn't state that (existing or new) characters that don't have those properties can't be granted them in the future.
> 
> 
> Which is the stability we care about (and basically the only one Unicode defines).
> Identifiers cannot stop being identifiers, well formed code will remain well-formed.
> 
> (original reply was in reference to :
> Steve responded that they are derived properties and are not guaranteed to be stable, but probably will be in practice.
> )
>  
> 
> Tom.
> 
>> 
>> On Wed, 22 Jan 2020 at 06:23, Tom Honermann via SG16 <sg16_at_[hidden] <mailto:sg16_at_[hidden]>> wrote:
>> The summary for the SG16 meeting held January 8th, 2020 is now available.  For those that attended, please review and suggest corrections:
>> - https://github.com/sg16-unicode/sg16-meetings#january-8th-2020 <https://github.com/sg16-unicode/sg16-meetings#january-8th-2020>
>> The next meeting is scheduled for Wednesday, January 22nd, from 3:30-5:00pm EST.  An invitation (from invite_at_[hidden] <mailto:invite_at_[hidden]>) has been sent to the mailing list and prior attendees.  The draft agenda is:
>> - P1885R0: Naming Text Encodings to Demystify Them <https://wg21.link/p1885>
>>   - Follow up on recent mailing list discussions.
>>   - Identify and discuss intended use cases.
>> - P2020R0: Locales, Encodings and Unicode <https://wg21.link/p2020>
>>   - General discussion, corrections, suggestions, etc...
>> 
>> For any new attendees: The meetings are video conferences conducted via BlueJeans.  If you are planning to attend, please test your system by visiting https://bluejeans.com/111 <https://bluejeans.com/111> before the scheduled meeting time.
>> 
>> Tom.
>> 
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>> https://lists.isocpp.org/mailman/listinfo.cgi/sg16 <https://lists.isocpp.org/mailman/listinfo.cgi/sg16>
>> 
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