diff --git a/lexicons.json b/lexicons.json
index 1d7ecd3c87..abd07b9062 100644
--- a/lexicons.json
+++ b/lexicons.json
@@ -426,7 +426,7 @@
     },
     "app.bsky.embed.video": {
       "uri": "at://did:plc:4v4y5r3lwsbtmsxhile2ljac/com.atproto.lexicon.schema/app.bsky.embed.video",
-      "cid": "bafyreihoxb7lvczityqcv2s5od3rllmkee7tn3m4qg6wn34kd6m45p6v24"
+      "cid": "bafyreiaqos23yv3t4ptrxily6s6qea5fcxfjzjlm42zq46xweby2mkgr4m"
     },
     "app.bsky.feed.defs": {
       "uri": "at://did:plc:4v4y5r3lwsbtmsxhile2ljac/com.atproto.lexicon.schema/app.bsky.feed.defs",
@@ -538,7 +538,7 @@
     },
     "app.bsky.graph.defs": {
       "uri": "at://did:plc:4v4y5r3lwsbtmsxhile2ljac/com.atproto.lexicon.schema/app.bsky.graph.defs",
-      "cid": "bafyreifcipomli7yggtl46xufgxlnrw7se6xmsdxmzgfcz2tiu76ljatxm"
+      "cid": "bafyreief2f7zpllyicjugbn7faohmnzwujeiytfzj76uckxmrqmtdvechy"
     },
     "app.bsky.graph.follow": {
       "uri": "at://did:plc:4v4y5r3lwsbtmsxhile2ljac/com.atproto.lexicon.schema/app.bsky.graph.follow",
diff --git a/lexicons/app/bsky/embed/video.json b/lexicons/app/bsky/embed/video.json
index 9a7df6c796..5033261982 100644
--- a/lexicons/app/bsky/embed/video.json
+++ b/lexicons/app/bsky/embed/video.json
@@ -9,7 +9,9 @@
       "properties": {
         "alt": {
           "type": "string",
-          "description": "Alt text description of the video, for accessibility."
+          "maxLength": 10000,
+          "description": "Alt text description of the video, for accessibility.",
+          "maxGraphemes": 1000
         },
         "video": {
           "type": "blob",
@@ -49,7 +51,9 @@
       ],
       "properties": {
         "alt": {
-          "type": "string"
+          "type": "string",
+          "maxLength": 10000,
+          "maxGraphemes": 1000
         },
         "cid": {
           "type": "string",
diff --git a/lexicons/app/bsky/feed/defs.json b/lexicons/app/bsky/feed/defs.json
index a59b32914d..97cb057f6f 100644
--- a/lexicons/app/bsky/feed/defs.json
+++ b/lexicons/app/bsky/feed/defs.json
@@ -169,6 +169,28 @@
         }
       }
     },
+    "knownLikers": {
+      "type": "object",
+      "required": [
+        "count",
+        "actors"
+      ],
+      "properties": {
+        "count": {
+          "type": "integer"
+        },
+        "actors": {
+          "type": "array",
+          "items": {
+            "ref": "app.bsky.actor.defs#profileViewBasic",
+            "type": "ref"
+          },
+          "maxLength": 5,
+          "minLength": 0
+        }
+      },
+      "description": "The post's likers whom you also follow"
+    },
     "requestLess": {
       "type": "token",
       "description": "Request that less content like the given feed item be shown in the feed"
@@ -194,6 +216,11 @@
         "bookmarked": {
           "type": "boolean"
         },
+        "knownLikers": {
+          "ref": "#knownLikers",
+          "type": "ref",
+          "description": "This property is present only in selected cases, as an optimization."
+        },
         "threadMuted": {
           "type": "boolean"
         },
@@ -202,37 +229,10 @@
         },
         "embeddingDisabled": {
           "type": "boolean"
-        },
-        "knownLikers": {
-          "description": "This property is present only in selected cases, as an optimization.",
-          "type": "ref",
-          "ref": "#knownLikers"
         }
       },
       "description": "Metadata about the requesting account's relationship with the subject content. Only has meaningful content for authed requests."
     },
-    "knownLikers": {
-      "type": "object",
-      "description": "The post's likers whom you also follow",
-      "required": [
-        "count",
-        "actors"
-      ],
-      "properties": {
-        "count": {
-          "type": "integer"
-        },
-        "actors": {
-          "type": "array",
-          "minLength": 0,
-          "maxLength": 5,
-          "items": {
-            "type": "ref",
-            "ref": "app.bsky.actor.defs#profileViewBasic"
-          }
-        }
-      }
-    },
     "feedViewPost": {
       "type": "object",
       "required": [
diff --git a/lexicons/app/bsky/graph/defs.json b/lexicons/app/bsky/graph/defs.json
index eca42fc875..8d77562184 100644
--- a/lexicons/app/bsky/graph/defs.json
+++ b/lexicons/app/bsky/graph/defs.json
@@ -100,6 +100,11 @@
         "subject": {
           "ref": "app.bsky.actor.defs#profileView",
           "type": "ref"
+        },
+        "subjectOptedOut": {
+          "type": "boolean",
+          "const": true,
+          "description": "Set to true when the subject has opted out of appearing in the reference list. Only set when the viewer owns the list."
         }
       }
     },
@@ -228,6 +233,11 @@
         "blocked": {
           "type": "string",
           "format": "at-uri"
+        },
+        "referenceListOptOut": {
+          "type": "string",
+          "format": "at-uri",
+          "description": "The authenticated viewer's app.bsky.graph.referencelistoptout record URI for this reference list. Only set for reference lists. A client can delete this record to undo the opt-out."
         }
       }
     },