BDE 4.28.0 Release

Schedule

The BDE team announces that the BDE 4.28.0 production release was completed on Thursday, August 7, 2025.

This release consists of assorted minor fixes.

Summary
Fix performance issue in bdlmt::MultiQueueThreadPool
bsl::format Bring ‘bslfmt_formatterunicodedata’ to gold quality
in the frequently copied watchdog code, correct race conditions and s/memcpy/strncpy
bslmt::Latch::tryWait() doesn’t work as documented
ball FileObserver file rotation callback fails to report error on fast rotations
bslstl::optional has_value is failing gcc13 build with -Werror=array-bounds=
use bsl::string_view in logging interface
Request for Review - TSAN Race Fix in bslmt::FastPostSemaphoreImpl
bslx_byteinstream, bdex_outstream.t.cpp: compile warnings
Please add bdldfp::Decimal64 tests to baljsn::Encoder/Decoder where missing
use TimedCompletionGuard in bdlmt
Please support checking for required elements in balxml_decoder
please correct bslmt_timedcompletionguard.t issues on Darwin
prototype use of TimedCompletionGuard in bslmt_fastpostsemaphoreimpl.t
balb::PerformanceMonitor: Allow find(0)
baljsn_jsonformatter fails to compile in asafe ufid
address observed nightly build TimedCompletionGuard failures in bdlmt and bslmt
Review Request: Fix data races in bdlmt_eventscheduler.t
Review Request: Fix data races in bdlcc_fixedqueue.t