| 17 Indo-European | 17.7.2.1.4 Midlands Middle English to Early Modern English | ʊ → ɤ ! P_ and _l
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| ɑʊ → ɑː / _P
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| ɑʊ → ɑː / _N (sometimes)
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| ɑʊ → ɔː / else
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| əɪ əʊ → ɑi æʊ / “in some parts of South-Eastern England”
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| əɪ əʊ → aɪ aʊ / “in most of Britain”
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| 17.7.2.1.6 Early Modern English to Australian English | oʊ iː → ɔʊ ɪə / _ɫ
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| oʊ iː → əʊ ɪi / else
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| uː → ʊə → uː / _ɫ ! in Queensland and New South Wales
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| uː → ʊʉ → ʉː / else
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| ɛə ʊə → ɛː ɔː (ongoing)
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| ʊə → oː / ! {j,dʒ}_
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| ʊə → ʉːwə / “almost always otherwise, but see [above vowel changes after /ɫ/ is formed]”
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| 17.7.2.1.7 Early Modern English to British English | oʊ → əʊ
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| 17.7.2.1.10 Old English to Scots | u → ʊ → ɵ → ʌ
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| 17.7.3.1 Proto-Norse to Old Norse | ɪʊ → yː
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| 17.12.1.1.6 Vulgar Latin to Old Provençal | — ʊ → o (this change seems to have happened later, hence is listed separately)
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| 29 Na-Dene | 29.1.1.1.1 Proto-Athabaskan to Ahtna | ɑ ə ʊ → a e o
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| 29.1.1.1.2 Proto-Athabaskan to Babine | u ɑ ʊ → {o,u} ə u
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| 29.1.1.1.5 Proto-Athabaskan to Chipewyan | ɑ ʊ → a o
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| 29.1.1.1.6 Proto-Athabaskan to Dakelh | u {ɑ,ʊ} → {o,u} ə
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| 29.1.1.1.7 Proto-Athabaskan to Deg Hit’an | e u a {ɑ,ʊ} → a i u ə
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| 29.1.1.1.8 Proto-Athabaskan to Dena’ina | e a u {ə,ʊ} → a u i ə
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| 29.1.1.1.9 Proto-Athabaskan to Dogrib | ɑ ə ʊ u → a e o i
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| 29.1.1.1.10 Proto-Athabaskan to Easter Gwich’in | a u {ɑ,ə} ʊ → {i,e} ju a o
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| 29.1.1.1.11 Proto-Athabaskan to Han | a ɑ ə ʊ → æ a {ə,ë} o
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| 29.1.1.1.12 Proto-Athabaskan to Holikachuk | i e a u {ɑ,ʊ} → e a ɔ o ŭ
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| 29.1.1.1.14 Proto-Athabaskan to Lower Koyukon | e a ɑ ʊ → a o ŏ ŭ
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| 29.1.1.1.15 Proto-Athabaskan to Upper Koyukon | e a ɑ ʊ → a o ŏ ŭ
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| 29.1.1.1.16 Proto-Athabaskan to Upper Kuskokwim Kolchan | e a {ɑ,ʊ} → a o ŭ
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| 29.1.1.1.17 Proto-Athabaskan to Sarcee | ɑ́ ə́ ʊ́ → ɑ̄ ə̄ ʊ̄
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| {e,ə} ʊ → ɑ u
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| 29.1.1.1.18 Proto-Athabaskan to Sekani | ʊ → o
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| 29.1.1.1.29 Proto-Athabaskan to Bearlake Slavey-Hare | ɑ ə ʊ → a ɛ o
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| 29.1.1.1.31 Proto-Athabaskan to Mountain Slavey-Hare | ɑ ə ʊ → a e o
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| 29.1.1.1.32 Proto-Athabaskan to Slavey Slavey-Hare | ɑ ə ʊ → a e o
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| 29.1.1.1.33 Proto-Athabaskan to Tahltan-Kaska-Tagish | ɑ ə ʊ → a {i,e} u
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| 29.1.1.1.37 Proto-Athabaskan to Tanacross | ɑ ə ʊ → {æ̆,ă} æ̆ ŏ
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| 29.1.1.1.38 Proto-Athabaskan to Lower Tanana | e a {ɑ,ʊ} → æ ɔ ŭ
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| 29.1.1.1.39 Proto-Athabaskan to Upper Tanana | {a,ɑ} e i u ʊ → e(a) {i,ea} ju {a,ɨ} o
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| 29.1.1.1.40 Proto-Athabaskan to Tsetsaut | ʊ → o
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| 29.1.1.1.41 Proto-Athabaskan to Northern Tutchone | {ɑ,ə,ʊ} → {a,o}
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| 29.1.1.1.42 Proto-Athabaskan to Southern Tutchone | {ɑ,ə,ʊ} → {a,o}
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| 44 Vasconic | 44.2 Proto-Basque to Basque | aʊ → aɪ / !_{ɾ,r,s̺,s̻} (Souletin, Roncalese)
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| eʊ → {e,eɡu}
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| ʊa → o “especially after a velar stop”
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| ʊe → e
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| 46 Vowel Shifts | 46.1 7-to-5 Vowel Merger (Bantu) | ɪ ʊ → i u
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| 46.2 California Vowel Shift (English) | ʊ ʌ ɛ → ʌ ɛ æ
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| oʊ̯ → eʊ̯ (“common only within certain social groups”)
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| 46.19 Southern [United States] Shift (English) | uʊ oʊ → ʉʊ̈ əʊ̈ (a bit of a guesstimate based upon the prose description in the article and the mean-formant-value chart cited from Labov, Ash & Bobert (2006))
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