Update CHANGELOG.md for 2025-02-23#1
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https://github.com/yandex/toolchain-registry/releases/tag/clang20-v1 commit_hash:c4ed5a7b8a5529269a0fd2fc59e360964306e789
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```
WARNING: ThreadSanitizer: data race (pid=123179)
Read of size 8 at 0x0000065aad98 by thread T14:
#0 NSystemInfo::CachedNumberOfCpus() util/system/info.cpp:241:10 (taxi-uservices-userver-core-tests+0x4155bba)
#1 engine::(anonymous namespace)::TaskProcessorThreadStartedHook() userver/core/src/engine/task/task_processor.cpp:100:15 (taxi-uservices-userver-core-tests+0x5306bc8)
ydb-platform#2 engine::TaskProcessor::PrepareWorkerThread(unsigned long) userver/core/src/engine/task/task_processor.cpp:347:5 (taxi-uservices-userver-core-tests+0x5306bc8)
```
The change on a hot path is equivalent to the previously compiler generated x86 code (just a `load` instruction). On other platforms this could actually fix a data race.
commit_hash:acb1fe1b8f3075cc27b18aab4f1bd0b88292c270
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<https://github.com/yandex/toolchain-registry/releases/tag/gdb17-v1> (https://nda.ya.ru/t/OcY6idk77RsH6E commit_hash:baff0ad07b0406643106a76686885e0fe330addb
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discovered by asan (on q-stable-2025-05-15 branch): ==716690==ERROR: AddressSanitizer: heap-use-after-free on address 0x504003ca5868 at pc 0x00005983a31c bp 0x7fd325567890 sp 0x7fd325567888 E READ of size 8 at 0x504003ca5868 thread T54 (kikimr.User) E #0 0x5983a31b in pair<unsigned long &, NYql::TIssues, 0> /-S/contrib/libs/cxxsupp/libcxx/include/__utility/pair.h:163:15 E #1 0x5983a31b in operator() /-S/contrib/ydb/core/fq/libs/checkpoint_storage/ydb_state_storage.cpp:503:26 ... E 0x504003ca5868 is located 24 bytes inside of 40-byte region [0x504003ca5850,0x504003ca5878) E freed by thread T54 (kikimr.User) here: E #0 0x262b6fcd in operator delete(void*) /-S/contrib/libs/clang18-rt/lib/asan/asan_new_delete.cpp:143:3 E #1 0x59839cfa in operator= /-S/contrib/libs/cxxsupp/libcxx/include/__functional/function.h E ydb-platform#2 0x59839cfa in operator= /-S/contrib/libs/cxxsupp/libcxx/include/__functional/function.h:969:8 E ydb-platform#3 0x59839cfa in operator() /-S/contrib/ydb/core/fq/libs/checkpoint_storage/ydb_state_storage.cpp:502:27
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This PR updates the CHANGELOG.md file for 2025-02-23.