v1.13.8

### Added

- agent: HTTP endpoints data plane (#4779)
- use sender report pass through setting to forward abs-capture-time verbatim (#4812)
- Add sdk lable to session start time and participant join (#4885)
- Add a local participant method to get recently disconnected (#4911)
- service: start room composite egress configured in a room preset (#4926)

### Changed

- Update github workflows (#4446)
- Reduce descriptor marshal allocations on Go 1.26.4/linux-amd64 (#4681)
- config: reject unknown send_side_bwe_pacer, warn on unwired fallback (#4804)
- Update github.com/livekit/protocol digest to a879e94 (#4864)
- Update module github.com/gotesttools/gotestfmt/v2 to v2.5.0 (#4865)
- Update module github.com/urfave/cli/v3 to v3.11.0 (#4867)
- Update module golang.org/x/mod to v0.41.0 (#4868)
- sfu: return VP8 munged header by value to avoid per-packet allocation (#4871)
- sfu: patch pacer header extensions without per-packet allocation (#4872)
- Update pion/sdp to get lesser SDP retention (#4873)
- sfu: skip pacer allocation assertion under the race detector (#4874)
- sfu: broadcast RTP to down tracks without per-packet allocations (#4875)
- Track action versions and stop quarantining our own actions (#4877)
- test: fix two data races in the test suites (#4878)
- Bump go.opentelemetry.io/otel/sdk (#4879)
- deps: update psrpc to v0.8.0 (#4882)
- Update module github.com/moby/moby/client to v0.6.0 (#4883)
- Update module golang.org/x/sync to v0.23.0 (#4884)
- Propagate SIP_TRUNK_FAILURE (#4890)
- ccutils: use millisecond resolution for probe interval backoff (#4891)
- Increase receiver loadbalance threshold when batch io enabled (#4899)
- rtc: parse each remote offer once per negotiation (#4904)
- Bump protocol (#4909)
- rtc: split EndSession out of MoveToRoom (#4917)
- telemetry: drop the stats worker re-key path (#4918)
- sfu: report forwarding latency as p90 instead of the mean (#4920)
- rtc: accept ICE Completed in ICE-restart connect assertions (#4921)
- rtc: measure data blob keys by their content, not their text form (#4923)
- Remove deprecatred way of setting prometheus from the config file (#4928)
- test: give mock participants a connection quality, close test rooms (#4933)
- update warp dep (#4943)

### Fixed

- Do not add down tracks after receiver close (#4857)
- Do not request media sections for transceivers that cannot send (#4892)
- Deregister agent job when the server terminates it (#4893)
- sfu: don't hold bindLock across the blank-frame flush in CloseWithFlush (#4895)
- dynacast: re-send subscribed qualities after every publisher answer (#4907)
- agent: release JobTerminate handler when job ends before registration (#4908)
- Report disconnected for older disconnected participants. (#4910)
- rtc: record a room's departure when the participant leaves it (#4913)
- update deps to fix warp issue (#4916)
- sfu: fix data stats active window bitrate and duration units (#4922)
- fix: reject instead of drop for no dispatch rule (#4927)
- fix: skip RTX/FEC when picking a fallback video codec (#4930)
- fix: do not read invalid delta (#4935)
- fix: use the fast debounce for the first negotiation (#4936)
- fix: skip DTLS HelloVerifyRequest (#4937)
- config: parse generated duration flags as durations (#4939)
- fix: use the most common recent packet rate in connection quality (#4940)
- fix: copy RED history packets instead of keeping pointers (#4941)
- fix: keep one subscription when first subscribes race (#4944)
- bump protocol to get unlock on no key fix (#4945)
- fix: count leftover upstream loss after RTX repairs (#4946)
- fix: switch VP8 temporal layer up only at a layer sync frame (#4947)
- fix: reconcile everything when the reconcile queue overflows (#4948)
- fix: enable H.264 publish for desktop Linux Firefox (#4949)