← ~/changelog / 2026-09-25

uSync.Complete: Publisher packs in parts, TimeMachine, server json, localisation fixes

• uSync.Complete: Publisher push and pull now send the sync pack between servers in parts, rather than as one zip in a single request that could run past RequestTimeout on large pulls
• New PackChunkSize (files, default 1000) and PackChunkMaxBytes (default 100MB) settings; a part closes at whichever limit comes first, and 0 turns a limit off
• Still works with older servers in either direction: an old remote sends the whole pack without the part header, and an old caller never asks for parts
• Pull fetch now reports progress, including the remote's packing progress passed back over the server-to-server hub
• Exporter downloads are zipped to disk and served from a file stream, rather than built in a MemoryStream, which can't hold more than 2GB
• Tested end to end on a local Source/Target pair with PackChunkSize: 10: settings push and pull both went as 11 parts and came back together
• Merged #100 (pack parts) and #99 (uSync.TimeMachine timeline and rollback) into v17/main; nightly 17.5.0-prerelease.30 has both
• Publisher: added missing item type labels (IDomain, IRelationType, IWebhook, IUser, IUserGroup); domain changes were showing the raw usyncpublish_IDomain key (#101)
• Publisher: brought back the v13 "Server json" footer link on the servers dashboard, which shows the server setup as json to save as usync-servers.json and seed servers on a new install; the backend was already there (#102)
• Fixed 22 typos across the Publisher, Expansions, Exporter and Snapshots language files, including a broken <> tag in the partial-unpublish warning; misspelt keys left as-is (#103)
• Found while testing 17.5 on a Source/Target pair: a push reported success when the target's import had failed on missing doctypes; not fixed yet