v1.20261015.1

What's Changed

• Add basic instance type to container start options by @gpanders in #7733
• Add more granular spans for Python workers bootstrap by @ryanking13 in #7701
• server: Rust server follow-ups (Windows drain, connection reuse, dead code) by @danlapid in #7714
• Reject failed server startup readiness with actionable diagnostics by @floitsch in #7716
• Give the persistent RPC storage suite a suitable test budget by @floitsch in #7726
• Launch Windows wd-tests without an unnecessary PowerShell process by @floitsch in #7725
• Collect zlib engines without conservative stack roots by @floitsch in #7741
• Streams: lifetime and termination handling fixes, backward error propagation in pipeTo() by @danlapid in #7738
• Pin late writes on the elided TransformStream path by @jasnell in #7711
• fix new Function("") behaviour by @csjh in #7742
• Fixup streams cancelation regression by @jasnell in #7600
• Pin shared-memory writes to IdentityTransformStream by @jasnell in #7712
• Implement async trace mechanism by @jasnell in #7670
• Pin how stream constructors convert their arguments by @jasnell in #7727
• SQC-843 implements hyperdrive js binding by @Ltadrian in #7575
• Copy of #7575 by @fhanau in #7748
• Stop the fetch cache option from overriding the origin's Cache-Control by @danlapid in #7749

Full Changelog: v1.20261014.1...v1.20261015.1