Re: Stable update to newer GCC versions soon?

On 2026-03-20 10:20, Hamish McIntyre-Bhatty via Cygwin-apps wrote:
> On 19/03/2026 20:16, Brian Inglis via Cygwin-apps wrote:
>> On 2026-03-19 09:10, Hamish McIntyre-Bhatty via Cygwin-apps wrote:
>>> I see that there are test packages for newer versions of GCC, but the stable 
>>> packages remains on the older GCC 13. I've encountered internal compiler 
>>> errors when compiling unit tests for python-pybind11, and I was wondering why 
>>> the test versions haven't been marked stable yet, as they might fix the issue.
>>>
>>> If the answer is that more testing needs to be done then I may volunteer 
>>> myself for that as it would probably benefit me to have a newer stable 
>>> compiler. Also, can I report the internal compiler errors upstream or can I 
>>> not due to downstream Cygwin patches?
>>
>> GCC packages are normally considered stable when they reach V.4... which for 
>> V14 might have been expected to be last ~August but now may not be until ~May 
>> or ~August?
> 
> Oh, okay, I wasn't aware of that, and a quick search suggests that they should 
> be stable from the V.1 release, which is in keeping with when many common Linux 
> distros update? Am I missing something, or is this just when the Cygwin packages 
> are considered stable?

GCC regression testing is not really complete until V.4... is released, so I 
think as we support only one current stable version, that is the level required 
to trust as default for building the base and packages.
It also gives us quite some time to test against the base and  packages.

>>      https://gcc.gnu.org/gcc-13/
>>
>>      Release History
>>
>>      GCC 13.4
>>          June 5, 2025 (changes, documentation)
>>      GCC 13.3
>>          May 21, 2024 (changes, documentation)
>>      GCC 13.2
>>          July 27, 2023 (changes, documentation)
>>      GCC 13.1
>>          April 26, 2023 (changes, documentation)
>>
>>      https://gcc.gnu.org/gcc-14/
>>
>>      Release History
>>
>>      GCC 14.3
>>          May 23, 2025 (changes, documentation)
>>      GCC 14.2
>>          Aug 1, 2024 (changes, documentation)
>>      GCC 14.1
>>          May 7, 2024 (changes, documentation)
>>
>>      https://gcc.gnu.org/gcc-15/
>>
>>      Release History
>>
>>      GCC 15.2
>>          August 8, 2025 (changes, documentation)
>>      GCC 15.1
>>          April 25, 2025 (changes, documentation)
>>
>>      https://gcc.gnu.org/gcc-16/
>>
>>          https://gcc.gnu.org/gcc-16/criteria.html
>>
>> Source Package: gcc
>>
>>     summary: GNU Compiler Collection
>> ...
>> Version            Arch...       Date ...Status Files
>> ...
>> 11.4.0-1            src... 2023-06-05 ...stable .../gcc-11.4.0-1-src
>> 11.5.0-1            src... 2024-07-21 ...stable .../gcc-11.5.0-1-src
>> 12.4.0-3            src... 2024-07-29 ...stable .../gcc-12.4.0-3-src
>> 12.5.0-1            src... 2025-07-13 ...stable .../gcc-12.5.0-1-src
>> 13.4.0-1            src... 2025-06-15 ...stable .../gcc-13.4.0-1-src
>> 14.3.1+20260206-0.1 src... 2026-02-11 ... test  .../ gcc-14.3.1+20260206-0.1-src
>> 15.2.1+20260207-0.1 src... 2026-02-11 ... test  .../ gcc-15.2.1+20260207-0.1-src
>> 16.0.0+20260208-0.1 src... 2026-02-15 ... test  .../ gcc-16.0.0+20260208-0.1-src
>>
> 


-- 
Take care. Thanks, Brian Inglis              Calgary, Alberta, Canada

La perfection est atteinte                   Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter  not when there is no more to add
mais lorsqu'il n'y a plus rien à retrancher  but when there is no more to cut
                                 -- Antoine de Saint-Exupéry