diff --git a/src/Share/NamespaceDiffs.hs b/src/Share/NamespaceDiffs.hs
index f2813ef0..ac3882ff 100644
--- a/src/Share/NamespaceDiffs.hs
+++ b/src/Share/NamespaceDiffs.hs
@@ -62,7 +62,7 @@ import Unison.Codebase.Path (Path)
 import Unison.Codebase.Path qualified as Path
 import Unison.Codebase.SqliteCodebase.Conversions qualified as Cv
 import Unison.DataDeclaration (Decl)
-import Unison.DeclCoherencyCheck (checkDeclCoherency, lenientCheckDeclCoherency)
+import Unison.DeclCoherencyCheck (asOneRandomIncoherentDeclReason, checkAllDeclCoherency, lenientCheckDeclCoherency)
 import Unison.LabeledDependency (LabeledDependency)
 import Unison.Merge qualified as Merge
 import Unison.Merge.EitherWay qualified as EitherWay
@@ -262,8 +262,8 @@ computeThreeWayNamespaceDiff codebaseEnvs2 aliceCodeCache bobCodeCache branchHas
       PG.transactionSpan "check decl coherency" mempty do
         sequence $
           ( \v c e ->
-              checkDeclCoherency v.nametree c
-                & mapLeft (IncoherentDecl . e)
+              checkAllDeclCoherency v.nametree c
+                & mapLeft (IncoherentDecl . e . asOneRandomIncoherentDeclReason)
                 & liftEither
           )
             <$> ThreeWay.forgetLca defns
diff --git a/transcripts/share-apis/contribution-diffs/contribution-diff.json b/transcripts/share-apis/contribution-diffs/contribution-diff.json
index 8133dd82..c26f1f71 100644
--- a/transcripts/share-apis/contribution-diffs/contribution-diff.json
+++ b/transcripts/share-apis/contribution-diffs/contribution-diff.json
@@ -273,7 +273,7 @@
             "contents": {
               "contents": {
                 "fullName": "AbilityNew",
-                "hash": "#n7jj1pvi6a8689nggmnlhmn8hvkjiu4j5563kojf57dcf8dribv5suliht31nbpgc4501h26geepfg5o8jiid45h6ccmf8ogqu39am0",
+                "hash": "#0jhggeqhm54kgt6fmcftpesmdac7a6d7cp3fko413innr5kc8q9jmn6fm1mj9gdtr0iqh75ior1sh6fl0h3h930kph4meeelndlreb8",
                 "rendered": {
                   "bestTypeName": "AbilityNew",
                   "defnTypeTag": "Ability",
@@ -312,7 +312,7 @@
                       },
                       {
                         "annotation": {
-                          "contents": "#n7jj1pvi6a8689nggmnlhmn8hvkjiu4j5563kojf57dcf8dribv5suliht31nbpgc4501h26geepfg5o8jiid45h6ccmf8ogqu39am0#a0",
+                          "contents": "#0jhggeqhm54kgt6fmcftpesmdac7a6d7cp3fko413innr5kc8q9jmn6fm1mj9gdtr0iqh75ior1sh6fl0h3h930kph4meeelndlreb8#a0",
                           "tag": "TermReference"
                         },
                         "segment": "abilityNew"
@@ -335,7 +335,7 @@
                       },
                       {
                         "annotation": {
-                          "contents": "#n7jj1pvi6a8689nggmnlhmn8hvkjiu4j5563kojf57dcf8dribv5suliht31nbpgc4501h26geepfg5o8jiid45h6ccmf8ogqu39am0",
+                          "contents": "#0jhggeqhm54kgt6fmcftpesmdac7a6d7cp3fko413innr5kc8q9jmn6fm1mj9gdtr0iqh75ior1sh6fl0h3h930kph4meeelndlreb8",
                           "tag": "TypeReference"
                         },
                         "segment": "AbilityNew"
@@ -1204,79 +1204,809 @@
             },
             "tag": "Data"
           },
+          {
+            "contents": {
+              "contents": {
+                "diff": {
+                  "diff": {
+                    "diff": {
+                      "contents": {
+                        "left": [
+                          {
+                            "kind": "changed",
+                            "value": [
+                              {
+                                "diffTag": "both",
+                                "elements": [
+                                  {
+                                    "annotation": {
+                                      "tag": "DataTypeKeyword"
+                                    },
+                                    "segment": "type"
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": " "
+                                  },
+                                  {
+                                    "annotation": {
+                                      "contents": "MyType",
+                                      "tag": "HashQualifier"
+                                    },
+                                    "segment": "MyType"
+                                  }
+                                ]
+                              },
+                              {
+                                "diffTag": "oneSided",
+                                "elements": [
+                                  {
+                                    "annotation": {
+                                      "tag": "DelimiterChar"
+                                    },
+                                    "segment": " = "
+                                  }
+                                ]
+                              },
+                              {
+                                "diffTag": "both",
+                                "elements": [
+                                  {
+                                    "annotation": {
+                                      "tag": "DelimiterChar"
+                                    },
+                                    "segment": "{ "
+                                  }
+                                ]
+                              },
+                              {
+                                "diffTag": "annotationChange",
+                                "fromAnnotation": {
+                                  "contents": "#0tc9e438eurvtevfa6k9pg04qvv66is75hs8iqejkuoaef140g8vvu92hc1ks4gamgc3i1ukgdn0blchp3038l43vffijpsbjh14igo",
+                                  "tag": "TypeReference"
+                                },
+                                "segment": "x",
+                                "toAnnotation": {
+                                  "contents": "#0isu3aust47n76g5cev59evfim7tdq73pc6uuqf1lmg8f8hum3ltnb6s2ptpo5krv0k403bsjbjr6fmpcld3h1jckro47i0rjcjpo4g",
+                                  "tag": "TypeReference"
+                                }
+                              },
+                              {
+                                "diffTag": "both",
+                                "elements": [
+                                  {
+                                    "annotation": {
+                                      "tag": "TypeAscriptionColon"
+                                    },
+                                    "segment": " :"
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": " "
+                                  },
+                                  {
+                                    "annotation": {
+                                      "contents": "##Nat",
+                                      "tag": "TypeReference"
+                                    },
+                                    "segment": "Nat"
+                                  },
+                                  {
+                                    "annotation": {
+                                      "tag": "DelimiterChar"
+                                    },
+                                    "segment": " }"
+                                  }
+                                ]
+                              }
+                            ]
+                          },
+                          {
+                            "kind": "spacer"
+                          },
+                          {
+                            "kind": "spacer"
+                          },
+                          {
+                            "kind": "spacer"
+                          },
+                          {
+                            "kind": "spacer"
+                          }
+                        ],
+                        "right": [
+                          {
+                            "kind": "changed",
+                            "value": [
+                              {
+                                "diffTag": "both",
+                                "elements": [
+                                  {
+                                    "annotation": {
+                                      "tag": "DataTypeKeyword"
+                                    },
+                                    "segment": "type"
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": " "
+                                  },
+                                  {
+                                    "annotation": {
+                                      "contents": "MyType",
+                                      "tag": "HashQualifier"
+                                    },
+                                    "segment": "MyType"
+                                  }
+                                ]
+                              }
+                            ]
+                          },
+                          {
+                            "kind": "changed",
+                            "value": [
+                              {
+                                "diffTag": "oneSided",
+                                "elements": [
+                                  {
+                                    "annotation": {
+                                      "tag": "DelimiterChar"
+                                    },
+                                    "segment": "  = "
+                                  }
+                                ]
+                              },
+                              {
+                                "diffTag": "both",
+                                "elements": [
+                                  {
+                                    "annotation": {
+                                      "tag": "DelimiterChar"
+                                    },
+                                    "segment": "{ "
+                                  }
+                                ]
+                              },
+                              {
+                                "diffTag": "annotationChange",
+                                "fromAnnotation": {
+                                  "contents": "#0isu3aust47n76g5cev59evfim7tdq73pc6uuqf1lmg8f8hum3ltnb6s2ptpo5krv0k403bsjbjr6fmpcld3h1jckro47i0rjcjpo4g",
+                                  "tag": "TypeReference"
+                                },
+                                "segment": "x",
+                                "toAnnotation": {
+                                  "contents": "#0tc9e438eurvtevfa6k9pg04qvv66is75hs8iqejkuoaef140g8vvu92hc1ks4gamgc3i1ukgdn0blchp3038l43vffijpsbjh14igo",
+                                  "tag": "TypeReference"
+                                }
+                              },
+                              {
+                                "diffTag": "both",
+                                "elements": [
+                                  {
+                                    "annotation": {
+                                      "tag": "TypeAscriptionColon"
+                                    },
+                                    "segment": " :"
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": " "
+                                  },
+                                  {
+                                    "annotation": {
+                                      "contents": "##Nat",
+                                      "tag": "TypeReference"
+                                    },
+                                    "segment": "Nat"
+                                  }
+                                ]
+                              },
+                              {
+                                "diffTag": "oneSided",
+                                "elements": [
+                                  {
+                                    "annotation": {
+                                      "tag": "DelimiterChar"
+                                    },
+                                    "segment": ","
+                                  }
+                                ]
+                              }
+                            ]
+                          },
+                          {
+                            "kind": "changed",
+                            "value": [
+                              {
+                                "diffTag": "oneSided",
+                                "elements": [
+                                  {
+                                    "annotation": null,
+                                    "segment": "      "
+                                  },
+                                  {
+                                    "annotation": {
+                                      "contents": "#0isu3aust47n76g5cev59evfim7tdq73pc6uuqf1lmg8f8hum3ltnb6s2ptpo5krv0k403bsjbjr6fmpcld3h1jckro47i0rjcjpo4g",
+                                      "tag": "TypeReference"
+                                    },
+                                    "segment": "newFieldWithAReallyReallyReallyReallyReallyLongNameThatWillForceThePrettyPrinterToWrapItIHope"
+                                  },
+                                  {
+                                    "annotation": {
+                                      "tag": "TypeAscriptionColon"
+                                    },
+                                    "segment": " :"
+                                  }
+                                ]
+                              }
+                            ]
+                          },
+                          {
+                            "kind": "changed",
+                            "value": [
+                              {
+                                "diffTag": "oneSided",
+                                "elements": [
+                                  {
+                                    "annotation": null,
+                                    "segment": "  "
+                                  },
+                                  {
+                                    "annotation": {
+                                      "contents": "##Text",
+                                      "tag": "TypeReference"
+                                    },
+                                    "segment": "Text"
+                                  },
+                                  {
+                                    "annotation": {
+                                      "tag": "DelimiterChar"
+                                    },
+                                    "segment": ","
+                                  }
+                                ]
+                              }
+                            ]
+                          },
+                          {
+                            "kind": "changed",
+                            "value": [
+                              {
+                                "diffTag": "oneSided",
+                                "elements": [
+                                  {
+                                    "annotation": null,
+                                    "segment": "      "
+                                  },
+                                  {
+                                    "annotation": {
+                                      "contents": "#0isu3aust47n76g5cev59evfim7tdq73pc6uuqf1lmg8f8hum3ltnb6s2ptpo5krv0k403bsjbjr6fmpcld3h1jckro47i0rjcjpo4g",
+                                      "tag": "TypeReference"
+                                    },
+                                    "segment": "y"
+                                  },
+                                  {
+                                    "annotation": {
+                                      "tag": "TypeAscriptionColon"
+                                    },
+                                    "segment": " :"
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": " "
+                                  },
+                                  {
+                                    "annotation": {
+                                      "contents": "##Boolean",
+                                      "tag": "TypeReference"
+                                    },
+                                    "segment": "Boolean"
+                                  }
+                                ]
+                              },
+                              {
+                                "diffTag": "both",
+                                "elements": [
+                                  {
+                                    "annotation": {
+                                      "tag": "DelimiterChar"
+                                    },
+                                    "segment": " }"
+                                  }
+                                ]
+                              }
+                            ]
+                          }
+                        ]
+                      },
+                      "tag": "UserObject"
+                    },
+                    "diffKind": "diff"
+                  },
+                  "left": {
+                    "bestTypeName": "MyType",
+                    "defnTypeTag": "Data",
+                    "typeDefinition": {
+                      "contents": [
+                        {
+                          "annotation": {
+                            "tag": "DataTypeKeyword"
+                          },
+                          "segment": "type"
+                        },
+                        {
+                          "annotation": null,
+                          "segment": " "
+                        },
+                        {
+                          "annotation": {
+                            "contents": "MyType",
+                            "tag": "HashQualifier"
+                          },
+                          "segment": "MyType"
+                        },
+                        {
+                          "annotation": {
+                            "tag": "DelimiterChar"
+                          },
+                          "segment": " = "
+                        },
+                        {
+                          "annotation": {
+                            "tag": "DelimiterChar"
+                          },
+                          "segment": "{ "
+                        },
+                        {
+                          "annotation": {
+                            "contents": "#0tc9e438eurvtevfa6k9pg04qvv66is75hs8iqejkuoaef140g8vvu92hc1ks4gamgc3i1ukgdn0blchp3038l43vffijpsbjh14igo",
+                            "tag": "TypeReference"
+                          },
+                          "segment": "x"
+                        },
+                        {
+                          "annotation": {
+                            "tag": "TypeAscriptionColon"
+                          },
+                          "segment": " :"
+                        },
+                        {
+                          "annotation": null,
+                          "segment": " "
+                        },
+                        {
+                          "annotation": {
+                            "contents": "##Nat",
+                            "tag": "TypeReference"
+                          },
+                          "segment": "Nat"
+                        },
+                        {
+                          "annotation": {
+                            "tag": "DelimiterChar"
+                          },
+                          "segment": " }"
+                        }
+                      ],
+                      "tag": "UserObject"
+                    },
+                    "typeDocs": [],
+                    "typeNames": [
+                      "MyType"
+                    ]
+                  },
+                  "right": {
+                    "bestTypeName": "MyType",
+                    "defnTypeTag": "Data",
+                    "typeDefinition": {
+                      "contents": [
+                        {
+                          "annotation": {
+                            "tag": "DataTypeKeyword"
+                          },
+                          "segment": "type"
+                        },
+                        {
+                          "annotation": null,
+                          "segment": " "
+                        },
+                        {
+                          "annotation": {
+                            "contents": "MyType",
+                            "tag": "HashQualifier"
+                          },
+                          "segment": "MyType"
+                        },
+                        {
+                          "annotation": {
+                            "tag": "DelimiterChar"
+                          },
+                          "segment": "\n  = "
+                        },
+                        {
+                          "annotation": {
+                            "tag": "DelimiterChar"
+                          },
+                          "segment": "{ "
+                        },
+                        {
+                          "annotation": {
+                            "contents": "#0isu3aust47n76g5cev59evfim7tdq73pc6uuqf1lmg8f8hum3ltnb6s2ptpo5krv0k403bsjbjr6fmpcld3h1jckro47i0rjcjpo4g",
+                            "tag": "TypeReference"
+                          },
+                          "segment": "x"
+                        },
+                        {
+                          "annotation": {
+                            "tag": "TypeAscriptionColon"
+                          },
+                          "segment": " :"
+                        },
+                        {
+                          "annotation": null,
+                          "segment": " "
+                        },
+                        {
+                          "annotation": {
+                            "contents": "##Nat",
+                            "tag": "TypeReference"
+                          },
+                          "segment": "Nat"
+                        },
+                        {
+                          "annotation": {
+                            "tag": "DelimiterChar"
+                          },
+                          "segment": ","
+                        },
+                        {
+                          "annotation": null,
+                          "segment": "\n      "
+                        },
+                        {
+                          "annotation": {
+                            "contents": "#0isu3aust47n76g5cev59evfim7tdq73pc6uuqf1lmg8f8hum3ltnb6s2ptpo5krv0k403bsjbjr6fmpcld3h1jckro47i0rjcjpo4g",
+                            "tag": "TypeReference"
+                          },
+                          "segment": "newFieldWithAReallyReallyReallyReallyReallyLongNameThatWillForceThePrettyPrinterToWrapItIHope"
+                        },
+                        {
+                          "annotation": {
+                            "tag": "TypeAscriptionColon"
+                          },
+                          "segment": " :"
+                        },
+                        {
+                          "annotation": null,
+                          "segment": "\n"
+                        },
+                        {
+                          "annotation": null,
+                          "segment": "  "
+                        },
+                        {
+                          "annotation": {
+                            "contents": "##Text",
+                            "tag": "TypeReference"
+                          },
+                          "segment": "Text"
+                        },
+                        {
+                          "annotation": {
+                            "tag": "DelimiterChar"
+                          },
+                          "segment": ","
+                        },
+                        {
+                          "annotation": null,
+                          "segment": "\n      "
+                        },
+                        {
+                          "annotation": {
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+                            "tag": "TypeReference"
+                          },
+                          "segment": "y"
+                        },
+                        {
+                          "annotation": {
+                            "tag": "TypeAscriptionColon"
+                          },
+                          "segment": " :"
+                        },
+                        {
+                          "annotation": null,
+                          "segment": " "
+                        },
+                        {
+                          "annotation": {
+                            "contents": "##Boolean",
+                            "tag": "TypeReference"
+                          },
+                          "segment": "Boolean"
+                        },
+                        {
+                          "annotation": {
+                            "tag": "DelimiterChar"
+                          },
+                          "segment": " }"
+                        }
+                      ],
+                      "tag": "UserObject"
+                    },
+                    "typeDocs": [],
+                    "typeNames": [
+                      "MyType"
+                    ]
+                  }
+                },
+                "fullName": "MyType",
+                "newHash": "#0isu3aust47n76g5cev59evfim7tdq73pc6uuqf1lmg8f8hum3ltnb6s2ptpo5krv0k403bsjbjr6fmpcld3h1jckro47i0rjcjpo4g",
+                "newTag": "Data",
+                "oldHash": "#0tc9e438eurvtevfa6k9pg04qvv66is75hs8iqejkuoaef140g8vvu92hc1ks4gamgc3i1ukgdn0blchp3038l43vffijpsbjh14igo",
+                "oldTag": "Data",
+                "shortName": "MyType"
+              },
+              "tag": "Updated"
+            },
+            "tag": "Data"
+          },
           {
             "contents": {
               "contents": {
                 "fullName": "NewType",
-                "hash": "#rmntisgmjlrtq6kja30at01q04aeq2p17q806li6v509bn117tq9tc3gd3m33lhdgimen1tjdn4tqiu2r11k7ie9oibng1n1i275cdg",
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                 "rendered": {
                   "bestTypeName": "NewType",
                   "defnTypeTag": "Data",
                   "typeDefinition": {
                     "contents": [
                       {
-                        "annotation": {
-                          "tag": "DataTypeKeyword"
-                        },
-                        "segment": "type"
+                        "annotation": {
+                          "tag": "DataTypeKeyword"
+                        },
+                        "segment": "type"
+                      },
+                      {
+                        "annotation": null,
+                        "segment": " "
+                      },
+                      {
+                        "annotation": {
+                          "contents": "NewType",
+                          "tag": "HashQualifier"
+                        },
+                        "segment": "NewType"
+                      },
+                      {
+                        "annotation": {
+                          "tag": "DelimiterChar"
+                        },
+                        "segment": " = "
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+                          "tag": "TermReference"
+                        },
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+                      }
+                    ],
+                    "tag": "UserObject"
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+                  "typeDocs": [],
+                  "typeNames": [
+                    "NewType"
+                  ]
+                },
+                "shortName": "NewType"
+              },
+              "tag": "Added"
+            },
+            "tag": "Data"
+          },
+          {
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+              "contents": {
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+                "newFullName": "RenamedType",
+                "newShortName": "RenamedType",
+                "oldNames": [
+                  "DataRenameMe"
+                ],
+                "rendered": {
+                  "bestTypeName": "RenamedType",
+                  "defnTypeTag": "Data",
+                  "typeDefinition": {
+                    "contents": [
+                      {
+                        "annotation": {
+                          "tag": "DataTypeKeyword"
+                        },
+                        "segment": "type"
+                      },
+                      {
+                        "annotation": null,
+                        "segment": " "
+                      },
+                      {
+                        "annotation": {
+                          "contents": "RenamedType",
+                          "tag": "HashQualifier"
+                        },
+                        "segment": "RenamedType"
+                      },
+                      {
+                        "annotation": {
+                          "tag": "DelimiterChar"
+                        },
+                        "segment": " = "
+                      },
+                      {
+                        "annotation": {
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+                          "tag": "TermReference"
+                        },
+                        "segment": "E"
+                      }
+                    ],
+                    "tag": "UserObject"
+                  },
+                  "typeDocs": [],
+                  "typeNames": [
+                    "RenamedType"
+                  ]
+                }
+              },
+              "tag": "RenamedFrom"
+            },
+            "tag": "Data"
+          },
+          {
+            "contents": {
+              "contents": {
+                "fullName": "aDoc",
+                "hash": "#areni4s9liksvfs3923a4ub81qpu37f964fqhbq832artpff8vm1em45ic0k2hlkv4nn08u712ibvjo9b4fl5u19o65g9medo7645i8",
+                "rendered": {
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+                  "defnTermTag": "Doc",
+                  "signature": [
+                    {
+                      "annotation": {
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+                        "tag": "TypeReference"
+                      },
+                      "segment": "Doc2"
+                    }
+                  ],
+                  "termDefinition": {
+                    "contents": [
+                      {
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+                                  "segment": " "
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+                                    "tag": "TypeReference"
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+                                  "segment": "MyType"
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+                                "contents": [
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+                                      "contents": "MyType.y.set",
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-                                    "segment": "termUpdateMe"
+                                    "segment": "MyType.y.set"
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@@ -1934,27 +8188,73 @@
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+                                      "contents": "##Boolean",
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-                            "value": [
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+                                    "segment": "Boolean"
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+                                  {
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+                                    "segment": " "
+                                  },
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+                                    "segment": "MyType"
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+                                    "segment": " "
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+                                  {
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+                                    "segment": "->"
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+                                    "segment": " "
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+                                      "tag": "TypeReference"
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+                                    "segment": "MyType"
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+                                  {
+                                    "annotation": null,
+                                    "segment": "\n"
+                                  },
+                                  {
+                                    "annotation": {
+                                      "contents": "MyType.y.set",
                                       "tag": "HashQualifier"
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-                                    "segment": "termUpdateMe"
+                                    "segment": "MyType.y.set"
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": " "
+                                  },
+                                  {
+                                    "annotation": {
+                                      "tag": "Var"
+                                    },
+                                    "segment": "y1"
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                                   {
                                     "annotation": {
@@ -1965,262 +8265,200 @@
                                   {
                                     "annotation": null,
                                     "segment": " "
-                                  }
-                                ]
-                              },
-                              {
-                                "diffTag": "oneSided",
-                                "elements": [
+                                  },
                                   {
                                     "annotation": {
-                                      "tag": "TextLiteral"
+                                      "tag": "ControlKeyword"
                                     },
-                                    "segment": "\"original\""
-                                  }
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-                            ]
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-                        "right": [
-                          {
-                            "kind": "unchanged",
-                            "value": [
-                              {
-                                "diffTag": "both",
-                                "elements": [
+                                    "segment": "cases"
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": "\n"
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": "  "
+                                  },
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                                     "annotation": {
-                                      "contents": "termUpdateMe",
-                                      "tag": "HashQualifier"
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+                                      "tag": "TermReference"
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-                                    "segment": "termUpdateMe"
+                                    "segment": "MyType"
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": "\n"
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": "  "
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+                                  {
+                                    "annotation": null,
+                                    "segment": "  "
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+                                  {
+                                    "annotation": {
+                                      "tag": "Var"
+                                    },
+                                    "segment": "x"
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+                                  {
+                                    "annotation": null,
+                                    "segment": "\n"
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+                                  {
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+                                    "segment": "  "
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+                                    "annotation": null,
+                                    "segment": "  "
+                                  },
+                                  {
+                                    "annotation": {
+                                      "tag": "Var"
+                                    },
+                                    "segment": "newFieldWithAReallyReallyReallyReallyReallyLongNameThatWillForceThePrettyPrinterToWrapItIHope"
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": "\n"
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": "  "
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+                                    "segment": "  "
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+                                      "tag": "DelimiterChar"
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+                                    "segment": "_"
+                                  },
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+                                    "annotation": null,
+                                    "segment": " "
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+                                      "tag": "ControlKeyword"
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+                                    "segment": "->"
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+                                    "segment": "  "
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+                                    "segment": "  "
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                                     "annotation": {
-                                      "tag": "TypeAscriptionColon"
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+                                    "segment": "MyType"
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                                     "annotation": null,
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+                                    "segment": "\n"
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                                   {
-                                    "annotation": {
-                                      "contents": "##Text",
-                                      "tag": "TypeReference"
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-                                    "segment": "Text"
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+                                      "tag": "Var"
                                     },
-                                    "segment": "termUpdateMe"
+                                    "segment": "x"
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-                                      "tag": "BindingEquals"
+                                      "tag": "Var"
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-                                    "segment": " ="
+                                    "segment": "newFieldWithAReallyReallyReallyReallyReallyLongNameThatWillForceThePrettyPrinterToWrapItIHope"
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-                              {
-                                "diffTag": "oneSided",
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+                                    "segment": "\n"
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+                                  {
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+                                    "segment": "  "
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+                                  {
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+                                    "segment": "  "
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                                     "annotation": {
-                                      "tag": "TextLiteral"
+                                      "tag": "Var"
                                     },
-                                    "segment": "\"updated\""
+                                    "segment": "y1"
                                   }
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-                      "tag": "UserObject"
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+                                "tag": "UserObject"
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+                              "termNames": [
+                                "MyType.y.set"
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-                          "tag": "TypeReference"
+                          "tag": "Added"
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-                "oldTag": "Plain",
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-              "tag": "Updated"
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-        "children": [
+            "path": "MyType"
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               "changes": [],
@@ -2503,9 +8741,9 @@
       "tag": "ok"
     },
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diff --git a/transcripts/share-apis/contribution-diffs/namespace-diff.json b/transcripts/share-apis/contribution-diffs/namespace-diff.json
index 8133dd82..c26f1f71 100644
--- a/transcripts/share-apis/contribution-diffs/namespace-diff.json
+++ b/transcripts/share-apis/contribution-diffs/namespace-diff.json
@@ -273,7 +273,7 @@
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                   "defnTypeTag": "Ability",
@@ -312,7 +312,7 @@
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@@ -335,7 +335,7 @@
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                         "segment": "AbilityNew"
@@ -1204,79 +1204,809 @@
             },
             "tag": "Data"
           },
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@@ -1364,10 +2133,10 @@
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+                          "contents": "aTest",
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@@ -1381,25 +2150,108 @@
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@@ -1450,10 +2302,10 @@
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@@ -1478,10 +2330,10 @@
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@@ -1497,59 +2349,46 @@
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@@ -1563,364 +2402,5779 @@
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-                          },
-                          {
-                            "kind": "changed",
-                            "value": [
-                              {
-                                "diffTag": "both",
-                                "elements": [
+                                    "annotation": null,
+                                    "segment": "  "
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": "  "
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": "  "
+                                  },
                                   {
                                     "annotation": {
-                                      "contents": "termUpdateMe",
-                                      "tag": "HashQualifier"
+                                      "tag": "Var"
                                     },
-                                    "segment": "termUpdateMe"
+                                    "segment": "x"
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": "\n"
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": "  "
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": "  "
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": "  "
                                   },
                                   {
                                     "annotation": {
-                                      "tag": "BindingEquals"
+                                      "tag": "Var"
                                     },
-                                    "segment": " ="
+                                    "segment": "newFieldWithAReallyReallyReallyReallyReallyLongNameThatWillForceThePrettyPrinterToWrapItIHope"
                                   },
                                   {
                                     "annotation": null,
-                                    "segment": " "
-                                  }
-                                ]
-                              },
-                              {
-                                "diffTag": "oneSided",
-                                "elements": [
+                                    "segment": "\n"
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": "  "
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": "  "
+                                  },
+                                  {
+                                    "annotation": null,
+                                    "segment": "  "
+                                  },
                                   {
                                     "annotation": {
-                                      "tag": "TextLiteral"
+                                      "tag": "Var"
                                     },
-                                    "segment": "\"updated\""
+                                    "segment": "y1"
                                   }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "tag": "UserObject"
-                    },
-                    "diffKind": "diff"
-                  },
-                  "left": {
-                    "bestTermName": "termUpdateMe",
-                    "defnTermTag": "Plain",
-                    "signature": [
-                      {
-                        "annotation": {
-                          "contents": "##Text",
-                          "tag": "TypeReference"
-                        },
-                        "segment": "Text"
-                      }
-                    ],
-                    "termDefinition": {
-                      "contents": [
-                        {
-                          "annotation": {
-                            "contents": "termUpdateMe",
-                            "tag": "HashQualifier"
-                          },
-                          "segment": "termUpdateMe"
-                        },
-                        {
-                          "annotation": {
-                            "tag": "TypeAscriptionColon"
-                          },
-                          "segment": " :"
-                        },
-                        {
-                          "annotation": null,
-                          "segment": " "
-                        },
-                        {
-                          "annotation": {
-                            "contents": "##Text",
-                            "tag": "TypeReference"
-                          },
-                          "segment": "Text"
-                        },
-                        {
-                          "annotation": null,
-                          "segment": "\n"
-                        },
-                        {
-                          "annotation": {
-                            "contents": "termUpdateMe",
-                            "tag": "HashQualifier"
-                          },
-                          "segment": "termUpdateMe"
-                        },
-                        {
-                          "annotation": {
-                            "tag": "BindingEquals"
-                          },
-                          "segment": " ="
-                        },
-                        {
-                          "annotation": null,
-                          "segment": " "
-                        },
-                        {
-                          "annotation": {
-                            "tag": "TextLiteral"
+                                ],
+                                "tag": "UserObject"
+                              },
+                              "termDocs": [],
+                              "termNames": [
+                                "MyType.y.set"
+                              ]
+                            },
+                            "shortName": "set"
                           },
-                          "segment": "\"original\""
-                        }
-                      ],
-                      "tag": "UserObject"
-                    },
-                    "termDocs": [],
-                    "termNames": [
-                      "termUpdateMe"
-                    ]
-                  },
-                  "right": {
-                    "bestTermName": "termUpdateMe",
-                    "defnTermTag": "Plain",
-                    "signature": [
-                      {
-                        "annotation": {
-                          "contents": "##Text",
-                          "tag": "TypeReference"
+                          "tag": "Added"
                         },
-                        "segment": "Text"
+                        "tag": "Plain"
                       }
                     ],
-                    "termDefinition": {
-                      "contents": [
-                        {
-                          "annotation": {
-                            "contents": "termUpdateMe",
-                            "tag": "HashQualifier"
-                          },
-                          "segment": "termUpdateMe"
-                        },
-                        {
-                          "annotation": {
-                            "tag": "TypeAscriptionColon"
-                          },
-                          "segment": " :"
-                        },
-                        {
-                          "annotation": null,
-                          "segment": " "
-                        },
-                        {
-                          "annotation": {
-                            "contents": "##Text",
-                            "tag": "TypeReference"
-                          },
-                          "segment": "Text"
-                        },
-                        {
-                          "annotation": null,
-                          "segment": "\n"
-                        },
-                        {
-                          "annotation": {
-                            "contents": "termUpdateMe",
-                            "tag": "HashQualifier"
-                          },
-                          "segment": "termUpdateMe"
-                        },
-                        {
-                          "annotation": {
-                            "tag": "BindingEquals"
-                          },
-                          "segment": " ="
-                        },
-                        {
-                          "annotation": null,
-                          "segment": " "
-                        },
-                        {
-                          "annotation": {
-                            "tag": "TextLiteral"
-                          },
-                          "segment": "\"updated\""
-                        }
-                      ],
-                      "tag": "UserObject"
-                    },
-                    "termDocs": [],
-                    "termNames": [
-                      "termUpdateMe"
-                    ]
-                  }
-                },
-                "fullName": "termUpdateMe",
-                "newHash": "#711u1t9cjso4t3rhlq2rp491n2n5n4t9o7701053kpj5ouu3kfs2e2l63i879pnsb6ob9fp0gpj18u6fpcl1qosd704h4doklfo734g",
-                "newTag": "Plain",
-                "oldHash": "#ofktbubbloi1omgpr09e0t90pg0cnf0lsuuopqese9biqvpdafsuhq0b4dfasbk6g3hp5r7crp4t486fc8bava7q7rrreg9j2volam8",
-                "oldTag": "Plain",
-                "shortName": "termUpdateMe"
-              },
-              "tag": "Updated"
+                    "children": []
+                  },
+                  "path": "y"
+                }
+              ]
             },
-            "tag": "Plain"
-          }
-        ],
-        "children": [
+            "path": "MyType"
+          },
           {
             "contents": {
               "changes": [],
@@ -2503,9 +8741,9 @@
       "tag": "ok"
     },
     "newRef": "diff-end",
-    "newRefHash": "#mp56hc03pe7b45crm3c68nb3qe8oima96q2kujcgmu995kp23i19eur1taej3dceiu3h4p7iihk02f4671hm72afc88eg3hc881vb40",
+    "newRefHash": "#dq03sc0bt10nmmrjv1ff16sbvldnlk22id878fbtvd122ep0gcb808f76q8japdj8h99tnc5m1ihhecpiap01hll1eanr8hc7bfrgpg",
     "oldRef": "diff-start",
-    "oldRefHash": "#n0i9eikbai766m5v3h8pj95ca8iocmkvk8aer6ush1eusf4tcn32ctepdr8mjr90f44gtb9vn0vf4s3ur2jf62ta92flv21rigvc4v8",
+    "oldRefHash": "#0ce6s0hcj5bijhdjr7v3s0pp1vt545bq6vmtl2mq9mi0r47fh17cce05bbcj5sgrt8di1oo4a0lvt57j7n9bug3iq4eh4bqn077ess8",
     "project": "@transcripts/contribution-diff",
     "tag": "done"
   },
diff --git a/transcripts/share-apis/contribution-diffs/prelude.md b/transcripts/share-apis/contribution-diffs/prelude.md
index 4b0077ca..a3da3c69 100644
--- a/transcripts/share-apis/contribution-diffs/prelude.md
+++ b/transcripts/share-apis/contribution-diffs/prelude.md
@@ -46,6 +46,8 @@ aDoc = {{ Test Doc }}
 aTest = [Ok "Done"]
 
 deleteMeAfterFork = "delete me after fork"
+
+type MyType = { x : Nat }
 ```
 
 ```ucm:hide
@@ -83,6 +85,8 @@ ability AbilityUpdateMe where
 
 ability AbilityNew where
     abilityNew : Text
+
+type MyType = { x : Nat, newFieldWithAReallyReallyReallyReallyReallyLongNameThatWillForceThePrettyPrinterToWrapItIHope : Text, y : Boolean}
 ```
 
 ```ucm
diff --git a/unison b/unison
index b3418a8f..6e582c18 160000
--- a/unison
+++ b/unison
@@ -1 +1 @@
-Subproject commit b3418a8fd17532d5aa87b83a6632d7190a8fb0b1
+Subproject commit 6e582c186129d830cf27ab645020b3d8f1918b35