Clear releasenotes for next release #19957

Job	Run time
build_cmake (ubuntu:24.04, true, true)	3m 26s
build_cmake (alpine:3.23, false, false)	4m 5s
build_make (ubuntu:25.10)	4m 49s
build_make (alpine:3.23)	5m 8s
build_make (ubuntu:24.04)	4m 3s
build_cmake (ubuntu:25.10, true, true)	5m 24s
	26m 55s

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