Cherry-picks for v2.12.1-RC.2#7392

Merged

neilalexander merged 15 commits intorelease/v2.12.1from

backports/v2.12.1-RC.2

Oct 3, 2025

Commits on Oct 2, 2025

Update dependencies
neilalexander
committed
[IMPROVED] Don't perform meta snapshot on every stream removal

MauriceVanVeen
authored and
neilalexander
committed
Update dependency `nats.go` to v1.46.1
neilalexander
committed
Fix race conditions and potential panics in JS API endpoint meta handling
neilalexander
committed
Refactor Docker nightly builds
neilalexander
committed
Fast-path check for empty block on filestore cache lookup
neilalexander
committed
feat: add NewServerFromConfig function for embedded server config processing

yixianOu
authored and
neilalexander
committed
[FIXED] EraseMsg lost tombstones

MauriceVanVeen
authored and
neilalexander
committed
[FIXED] Preserve last seq tombstone

MauriceVanVeen
authored and
neilalexander
committed
[FIXED] Clean up empty blocks when selecting next first

MauriceVanVeen
authored and
neilalexander
committed
Use optional sync when writing TTL and scheduling state in filestore
neilalexander
committed
Always use temporary staging for filestore meta file writes
neilalexander
committed
(2.12) Atomic batch: remove TODO comments

MauriceVanVeen
authored and
neilalexander
committed
(2.12) Atomic batch: support deduplication

MauriceVanVeen
authored and
neilalexander
committed

Commits on Oct 3, 2025

Implements HTTP proxy support for WebSocket leafnode connections

Dan Bailey
authored and
neilalexander
committed