[Pijukatel]

Summary

Syncs the Go client with OpenAPI spec v2-2026-11-04T151257Z (apify/apify-docs#3083, #3084, #3152) and apify-client-js #1179, #1187, #1188, #1190 and #1197. ClientVersion goes to 0.15.0.

Spec sync

• APISpecVersion is v2-2026-11-04T151257Z.
• actorPath is a typed ActorVersion.ActorPath field. The docs note that updating the source without it removes it.
• The tenancy enum (apify-docs #3152) is kept in Extra. The zip wording for TARBALL is documented.

Server Actors (JS #1179)

• ActorClient.Server() returns an ActorServerClient with GetURL, GetOpenAPISpec, Request and RequestStream. Standby() is kept as a deprecated alias.
• The token goes in X-Apify-Authorization.
• Only 429 and 503 are retried. Transport errors and timeouts are never retried.
• Redirects are not followed.
• Paths always resolve against the server URL.
• Compression is off unless the caller asks for it.
• New: ErrNotServerActor, FollowsRedirects, and a typed Actor.StandbyURL.
• A shared backoff/newRequest helper in http_client.go keeps the Server Actor path from duplicating the API retry code.

Dataset page Count (JS #1187, #1190)

• PaginationList.Count from DatasetClient.ListItems is now the larger of the scanned-rows header and the item count. Iterators step by Count, capped at the requested limit.
• The docs say which page size an iterator uses when chunkSize is not set.

Signed URL validity (JS #1188)

• A zero or negative expiresInSecs is rejected before any request is sent.

Behaviour changes

These are listed in the CHANGELOG under "Changed":

• Count on dataset pages has a new meaning.
• standbyUrl and actorPath moved out of Extra into typed fields.
• A custom HTTPBackend that follows redirects must check apify.FollowsRedirects(req) itself. Otherwise the token can reach a redirect target. The default backend handles this.

Docs and tests

• New docs/server_actors.md, a README note, and a CHANGELOG entry for 0.15.0.
• New offline and live tests for the Server Actor client, dataset Count, and expiresInSecs validation.