- Service session affinity timeout tests are no longer required for Kubernetes network plugin conformance due to variations in existing implementations. New conformance tests will be developed to better express conformance in future releases. ([#112806](https://github.com/kubernetes/kubernetes/pull/112806), [@dcbw](https://github.com/dcbw)) [SIG Architecture, Network and Testing]

- e2e tests that require SSH may now be used against clusters that have nodes without external IP addresses by setting the environment variable `KUBE_SSH_BASTION` to the `host:port` of a machine that is allowed to SSH to those nodes.  The same private key that the test would use is used for the bastion host.  The test connects to the bastion and then tunnels another SSH connection to the node. ([#72286](https:...

* Make error message and service event message more clear ([#86078](https://github.com/kubernetes/kubernetes/pull/86078), [@feiskyer](https://github.com/feiskyer))
* e2e-test-framework: add e2e test namespace dump if all tests succeed but the cleanup fails. ([#85542](https://github.com/kubernetes/kubernetes/pull/85542), [@schrodit](https://github.com/schrodit))

* Fixes segmentation fault issue with Protobuf library when log entries are deeply nested. ([#77224](https://github.com/kubernetes/kubernetes/pull/77224), [@qingling128](https://github.com/qingling128))

#### Container Runtime Interface

* ACTION REQUIRED: Removes defaulting of CSI file system type to ext4. All the production drivers listed under https://kubernetes-csi.github.io/docs/drivers.html were inspected and should not be impacted after this change. If you are using a driver not in that list, please test the drivers on an updated test cluster first. ([#65499](https://github.com/kubernetes/kubernetes/pull/65499), [@krunaljain](https://github.com/krunaljain))

- When using the conformance test image, a new environment variable `E2E_USE_GO_RUNNER` will cause the tests to be run with the new golang-based test runner rather than the current bash wrapper. ([#79284](https://github.com/kubernetes/kubernetes/pull/79284), [@johnSchnake](https://github.com/johnSchnake))

### Failing Test

- Resolves an issue running Ingress conformance tests on clusters which use finalizers on Ingress objects to manage releasing load balancer resources ([#96742](https://github.com/kubernetes/kubernetes/pull/96742), [@spencerhance](https://github.com/spencerhance)) [SIG Network and Testing]

  margin-left: $card-deck-margin;\n    }\n  }\n}\n\n\n//\n// Card groups\n//\n\n.card-group {\n  // The child selector allows nested `.card` within `.card-group`\n  // to display properly.\n  > .card {\n    margin-bottom: $card-group-margin;\n  }\n\n  @include media-breakpoint-up(sm) {\n    display: flex;\n    flex-flow: row wrap;\n    // The child selector allows nested `.card` within `.card-group`\n    // to display properly.\n    > .card {\n      // Flexbugs #4: https://github.com/philipwalto...

pkg regexp/syntax, const ErrInvalidNamedCapture = "invalid named capture"
pkg regexp/syntax, const ErrInvalidPerlOp = "invalid or unsupported Perl syntax"
pkg regexp/syntax, const ErrInvalidRepeatOp = "invalid nested repetition operator"
pkg regexp/syntax, const ErrInvalidRepeatSize = "invalid repeat count"
pkg regexp/syntax, const ErrInvalidUTF8 = "invalid UTF-8"
pkg regexp/syntax, const ErrMissingBracket = "missing closing ]"