Bug#1108361: release-notes: Document time64 transition on relevant 32-bit arches

Control: forwarded -1 https://salsa.debian.org/ddp-team/release-notes/-/merge_requests/282

On Fri, Jun 27, 2025 at 10:28:53AM +0100, Justin B Rye wrote:
> Here's a first stab at it just to get the ball rolling:
> 
>  2.x time64 ABI transition
>  ~~~~~~~~~~~~~~~~~~~~~~~~~
>  
>  All architectures other than `i386` now use a 64-bit `time_t` ABI,
>  which can deal with dates beyond 2038. This transition required the
>  32-bit `armel` and `armhf` architectures to change the libraries
>  involved without a change of soname
>  ([[https://wiki.debian.org/ReleaseGoals/64bit-time|see wiki page for
>  details]]), so third-party software handling dates on these systems
>  will need to be recompiled to avoid breakage. The `i386` architecture
>  did not participate in this transition, since its primary function is
>  to support legacy software.

I took your text as a base, modified it somewhat and stuck it into 
this MR: https://salsa.debian.org/ddp-team/release-notes/-/merge_requests/282

Review, improvements welcome.

Guillem: maybe you can also take a look at it.

Best,
Chris