v1.14.0

### Added
* [#5350](https://github.com/firecracker-microvm/firecracker/pull/5350): Added a `/serial` endpoint, which allows setting `serial_out_path` to the path of a pre-created file into which Firecracker should redirect output from the guest's serial console. Not configuring it means Firecracker will continue to print serial output to stdout. Similarly to the logger, this configuration is not persisted across snapshots.
* [#5463](https://github.com/firecracker-microvm/firecracker/pull/5463): Added support for `virtio-pmem` devices. See [documentation](docs/pmem.md) for more information.
* [#5534](https://github.com/firecracker-microvm/firecracker/pull/5534): Added  support for memory hot-plugging through the `virtio-mem` device. See [documentation](docs/memory-hotplug.md) for more information.
* [#5491](https://github.com/firecracker-microvm/firecracker/pull/5491): Added support for `virtio-balloon` free page reporting and hinting. Free page reporting is a developer preview not for production feature. See [documentation](docs/ballooning.md) for more information.

### Changed

* [#4028](https://github.com/firecracker-microvm/firecracker/pull/4028): Firecracker now creates the log and metrics files if they do not exist, simplifying the launch of Firecracker by removing a manual step.
* [#5516](https://github.com/firecracker-microvm/firecracker/pull/5516): Balloon stats now supports guest kernel >= 6.12, adding metrics on guest OOM kills, memory allocation stalls, and memory scan/reclaim info.
* [#5526](https://github.com/firecracker-microvm/firecracker/pull/5526): Specify IA32_MTRRdefType MSR on VM boot to allow it to set page attributes for memory regions.

### Removed

* [#5439](https://github.com/firecracker-microvm/firecracker/pull/5439): Removed the `rx_partial_writes`, `tx_partial_reads`, `sync_response_fails`, `sync_vmm_send_timeout_count`, `deprecated_cmd_line_api_calls`, `log_fails` and `device_events` metrics, as they were never incremented.

### Fixed

* [#5418](https://github.com/firecracker-microvm/firecracker/pull/5418): Fixed typo in Swagger definition of `MmdsConfig`, where the property `imds_compat` was spelled as `imds_comat`. This caused auto-generated clients to create bad requests.
* [#5447](https://github.com/firecracker-microvm/firecracker/pull/5447): Fixed Intel AMX enabling for kernels that support dynamic XSTATE features for userspace applications but not for KVM guests (e.g. kernel versions >= 5.16 and < 5.17).
* [#5485](https://github.com/firecracker-microvm/firecracker/pull/5485): Fixed a bug causing a read/write from an iovec to be duplicated when receiving an error on an iovec other than the first. This caused a data corruption issue in the vsock device starting from guest kernel 6.17.
* [#5494](https://github.com/firecracker-microvm/firecracker/pull/5494): Fixed a watchdog soft lockup bug on microVMs restored from snapshots by calling KVM_KVMCLOCK_CTRL ioctl before resuming.
* [#5538](https://github.com/firecracker-microvm/firecracker/pull/5538): Fixed a cache coherency issue on non-FWB aarch64 platforms by adding `dma-coherent` property to virtio-mmio nodes in the FDT.