Merge remote-tracking branch 'origin/v5' into v5-raw-source

* origin/v5:
  fix(providers/openai): logprobs for stream alongside completion model (#6091)
  chore (ai): move maxSteps into UseChatOptions (#6113)
  docs (ai): add notes on schema .optional() (#6111)
  chore: update references to use ai-sdk.dev (#6076) (#6107)
  Version Packages (canary) (#6069)
  chore (provider-utils): rename TestServerCall.requestBody to requestBodyJson (#6106)
  chore (ai): rename CoreMessage to ModelMessage (#6105)
  feat (ai): add filename to file ui parts (#6104)
  feat (docs): add Dify community provider (#4084) (#6067) (#6103)
  feat (docs): add Sarvam community provider (#6079) (#6096)
  fix(providers/openai): zod parse error with function (#6074) (#6095)
  feat(docs): add Weave observability provider (#6029) (#6094)
  core (ai/mcp): update experimental MCP client documentation for Streamable HTTP transport usage (#5972) (#6093)
  fix (docs): update formatting in useChat reference docs  (#6100)
  chore (ai): replace useChat attachments with file ui parts (#6071)
  feat (ui/react): support resuming an ongoing stream (#6053)
  test (openai): update snapshot (#6086)

Author: samdenty

.changeset/great-mangos-scream.md

@@ -0,0 +1,5 @@
+---
+'ai': patch
+---
+
+chore (ai): move maxSteps into UseChatOptions

.changeset/lemon-actors-invite.md

@@ -0,0 +1,5 @@
+---
+'ai': major
+---
+
+chore (ai): replace useChat attachments with file ui parts

.changeset/nervous-maps-fix.md

@@ -0,0 +1,5 @@
+---
+'@ai-sdk/provider-utils': major
+---
+
+chore (provider-utils): rename TestServerCall.requestBody to requestBodyJson

.changeset/nine-pillows-hug.md

@@ -0,0 +1,5 @@
+---
+'@ai-sdk/react': patch
+---
+
+feat (ui/react): support resuming an ongoing stream

.changeset/pre.json

@@ -152,6 +152,7 @@
     "late-brooms-suffer",
     "late-foxes-battle",
     "lazy-ducks-cheat",
+    "lemon-actors-invite",
     "lemon-terms-hug",
     "light-rules-film",
     "little-zebras-suffer",
@@ -162,22 +163,28 @@
     "modern-kings-smoke",
     "moody-rings-remember",
     "moody-yaks-love",
+    "nasty-lobsters-shave",
     "nasty-spiders-sparkle",
     "nasty-trains-beg",
     "neat-pillows-occur",
+    "nervous-maps-fix",
     "new-vans-obey",
     "nice-tips-walk",
     "nine-jars-hammer",
+    "nine-pillows-hug",
     "nine-rivers-compete",
     "odd-vans-suffer",
     "old-moons-kiss",
     "olive-candles-compare",
     "olive-ducks-carry",
     "pink-deers-switch",
+    "pink-mangos-tickle",
     "pretty-bikes-appear",
     "pretty-jars-reflect",
+    "proud-cows-bathe",
     "quick-toys-help",
     "quiet-glasses-double",
+    "real-apes-lick",
     "rich-days-call",
     "rotten-peaches-doubt",
     "rotten-walls-provide",
@@ -194,6 +201,7 @@
     "slow-pants-buy",
     "smart-swans-drive",
     "smooth-mirrors-kneel",
+    "sour-bananas-remain",
     "sour-mails-cheer",
     "spicy-mangos-brush",
     "spicy-shoes-matter",
@@ -218,6 +226,7 @@
     "twelve-kids-travel",
     "twelve-pianos-destroy",
     "unlucky-bobcats-wash",
+    "unlucky-cherries-rescue",
     "unlucky-kiwis-build",
     "violet-taxis-work",
     "wet-toys-burn",
@@ -226,6 +235,7 @@
     "wild-cats-work",
     "witty-candles-pretend",
     "yellow-chefs-kick",
-    "yellow-ligers-brake"
+    "yellow-ligers-brake",
+    "young-dingos-march"
   ]
 }

.changeset/real-apes-lick.md

@@ -0,0 +1,5 @@
+---
+'ai': minor
+---
+
+feat (ai): add filename to file ui parts

.changeset/swift-geckos-joke.md

@@ -0,0 +1,5 @@
+---
+'@ai-sdk/openai': patch
+---
+
+fix(providers/openai): logprobs for stream alongside completion model

.changeset/unlucky-cherries-rescue.md

@@ -0,0 +1,5 @@
+---
+'@ai-sdk/openai': patch
+---
+
+fix(providers/openai): zod parse error with function

.changeset/young-dingos-march.md

@@ -0,0 +1,5 @@
+---
+'ai': major
+---
+
+chore (ai): rename CoreMessage to ModelMessage

.github/workflows/actions/verify-changesets/index.js

@@ -127,7 +127,7 @@ export async function verifyChangesets(
     if (invalidVersionBumps.length > 0) {
       throw Object.assign(
         new Error(
-          `Invalid .changeset file - invalid version bump (only "patch" is allowed, see https://sdk.vercel.ai/docs/migration-guides/versioning). To bypass, add one of the following labels: ${BYPASS_LABELS.join(', ')}`,
+          `Invalid .changeset file - invalid version bump (only "patch" is allowed, see https://ai-sdk.dev/docs/migration-guides/versioning). To bypass, add one of the following labels: ${BYPASS_LABELS.join(', ')}`,
         ),
 
         { path, content },