- Kube-proxy: delete stale conntrack UDP entries for loadbalancer ingress IP. ([#104151](https://github.com/kubernetes/kubernetes/pull/104151), [@aojea](https://github.com/aojea)) [SIG Network]

- GCE does not support LoadBalancer Services with ports with different protocols (TCP and UDP) ([#115966](https://github.com/kubernetes/kubernetes/pull/115966), [@aojea](https://github.com/aojea)) [SIG Apps and Cloud Provider]

    * possible to update the spec field of an existing
    * NetworkPolicy. (Previously you had to delete and recreate a
    * NetworkPolicy if you wanted to change it.)
* Fix udp service blackhole problem when number of backends changes from 0 to non-0 ([#48524](https://github.com/kubernetes/kubernetes/pull/48524), [@freehan](https://github.com/freehan))

- Ephemeral containers graduated to beta and are now available by default. ([#105405](https://github.com/kubernetes/kubernetes/pull/105405), [@verb](https://github.com/verb))

- Fix concurrent map access causing panics when logging timed-out API calls. (#106112, @marseel) [SIG API Machinery]
- Fix kube-proxy regression on UDP services because the logic to detect stale connections was not considering if the endpoint was ready. (#106239, @aojea) [SIG Network and Testing]

- This code change fixes the bug that UDP services would trigger unnecessary LoadBalancer updates. The root cause is that a field not working for non-TCP protocols is considered.

- Added options for configuring `nf_conntrack_udp_timeout`, and `nf_conntrack_udp_timeout_stream` variables of netfilter conntrack subsystem. ([#120808](https://github.com/kubernetes/kubernetes/pull/120808), [@aroradaman](https://github.com/aroradaman))

## Changelog since v1.26.6

## Changes by Kind

### API Change

- GCE does not support LoadBalancer Services with ports with different protocols (TCP and UDP) ([#115966](https://github.com/kubernetes/kubernetes/pull/115966), [@aojea](https://github.com/aojea)) [SIG Apps and Cloud Provider]

### Feature