uSync.Complete 17.6.0 and 18.3.0 released

uSync.Complete: 17.6.0 now requires uSync 17.5.0 and Jumoo.Processing 17.5.0; filled the changelog gaps since rc1
Released uSync.Complete 17.6.0-rc2 to NuGet, with public notes
Released uSync.Complete 17.6.0 to NuGet, with public notes (Publisher approvals, Sync Queue, Publisher/Start / Exporter/Start background API, skip unchanged media files, Umbraco 17.8 readiness)
uSync.Complete: closed #293 and commented on #310 with the 17.6.0 fixes
uSync.Complete: forward-ported v17/main into v18/main (73 commits): on Processing 18.3.0 / uSync 18.2.0, regenerated the Publisher and Exporter API clients against v18, approval status enum now serialises by name, approval migrations moved to AsyncMigrationBase
uSync.Complete: fixed the v18 Background screen, whose process and queue lists never rendered, so scheduled runs can be seen and cancelled there
Released uSync.Complete 18.3.0 to NuGet, with public notes