Previous value: -"Run as a named login identity (the multi-account layer): a private\ncookie jar seeded from the account record, write-back to the account\nstore after every action. Concurrent logins (`taobao-scraper` vs\n`taobao-publisher`) never clobber each other. The account record\nsurvives the session — a later create with the same name picks up\nthe warm jar. 1-64 chars of [a-zA-Z0-9_-]."New value: +"Run as a named login identity (the multi-account layer): a private\ncookie jar seeded from the account record, write-back to the account\nstore after every action. Concurrent logins (`taobao-scraper` vs\n`taobao-publisher`) never clobber each other. The account record\nsurvives the session — a later create with the same name picks up\nthe warm jar, plus the record's captured localStorage/sessionStorage\n(replayed onto the captured origin; an explicit `storage` param\nwins). 1-64 chars of [a-zA-Z0-9_-]."

Previous value: -"Web Storage to inject after the initial navigation lands:\n{\"local_storage\": {\"k\":\"v\"}, \"session_storage\": {\"k\":\"v\"}}. For login\nstates that live in localStorage rather than the cookie jar.\nRound-trips with session_storage."New value: +"Web Storage to inject after the initial navigation lands:\n{\"local_storage\": {\"k\":\"v\"}, \"session_storage\": {\"k\":\"v\"}}. For login\nstates that live in localStorage rather than the cookie jar. An\noptional \"origin\": \"https://site\" key holds the injection until a\nnavigation lands on that origin (a session created without a\nstart_url sits on about:blank first). Round-trips with\nsession_storage."

Previous value: -"Initial URL to navigate to (optional)"New value: +"Initial URL to navigate to (optional). `start_url` is honored as an\nalias (#115) — callers guessing that name must not land on about:blank."

Removed value: -"SessionCreateParams"

Added value: +{
+  "default": null,
+  "description": "Run as a named login identity (the multi-account layer): a private\ncookie jar seeded from the account record, write-back to the account\nstore after every action. Concurrent logins (`taobao-scraper` vs\n`taobao-publisher`) never clobber each other. The account record\nsurvives the session — a later create with the same name picks up\nthe warm jar. 1-64 chars of [a-zA-Z0-9_-].",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Previous value: -"Cookies to inject before navigation ([\"name=value\", ...]). Lets the\nsession start already logged-in. Round-trips with session_cookies."New value: +"Cookies to inject before navigation: `\"name=value\"` strings or\nCDP-style objects `{\"name\",\"value\",\"domain\",...}`. Lets the session\nstart already logged-in. Round-trips with session_cookies."

Added value: +{
+  "description": "Initial viewport height in CSS pixels.",
+  "format": "uint32",
+  "minimum": 0,
+  "type": [
+    "integer",
+    "null"
+  ]
+}

Added value: +{
+  "default": false,
+  "description": "Exempt the session from the idle reaper: it lives until\nsession_close or server exit, so a workflow interrupted by long\nnon-browser steps keeps its login state.",
+  "type": "boolean"
+}

Added value: +{
+  "default": false,
+  "description": "Mobile device emulation (coarse pointer, no hover) for the initial\nviewport.",
+  "type": "boolean"
+}

Added value: +{
+  "default": false,
+  "description": "Persist the login state (cookies + localStorage/sessionStorage +\nviewport + dialog policy) to the server's local store after every\naction. If the session idles out — or the whole server restarts —\nthe next call with the same session_id revives it logged-in\n(storageState-style recovery, no re-login). Explicit session_close\ndrops the snapshot.",
+  "type": "boolean"
+}

Added value: +{
+  "description": "Initial viewport width in CSS pixels. Pinned for the session's life\n(survives navigation) so element rects and media queries anchor to\nthe same layout across every page of the visit.",
+  "format": "uint32",
+  "minimum": 0,
+  "type": [
+    "integer",
+    "null"
+  ]
+}

Added value: +{
+  "description": "Web Storage to inject after the initial navigation lands:\n{\"local_storage\": {\"k\":\"v\"}, \"session_storage\": {\"k\":\"v\"}}. For login\nstates that live in localStorage rather than the cookie jar.\nRound-trips with session_storage."
+}

Added value: +{
+  "description": "Idle time-to-live in seconds before the session is evicted\n(default: 480, clamped 60..3600). Raise it for long workflows.",
+  "format": "uint64",
+  "minimum": 0,
+  "type": [
+    "integer",
+    "null"
+  ]
+}