Drafted 2.11 release notes. #35

Job	Run time
test-and-build (11, ubuntu-latest, ism)	16m 52s
test-and-build (11, ubuntu-latest, non-ism)	13m 53s
test-and-build (11, windows-latest, ism)	6m 17s
test-and-build (11, windows-latest, non-ism)	5m 58s
test-and-build (11, macos-latest, ism)	5m 57s
test-and-build (11, macos-latest, non-ism)	6m 38s
test-and-build (17, ubuntu-latest, ism)	16m 49s
test-and-build (17, ubuntu-latest, non-ism)	13m 51s
test-and-build (17, windows-latest, ism)	5m 47s
test-and-build (17, windows-latest, non-ism)	6m 49s
test-and-build (17, macos-latest, ism)	6m 36s
test-and-build (17, macos-latest, non-ism)	26m 26s
	2h 11m 53s

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