sonic-net · rookie-who · Jun 16, 2026
diff --git a/doc/release-notes/SONiC_202605_Release_Notes.md b/doc/release-notes/SONiC_202605_Release_Notes.md
@@ -0,0 +1,94 @@
+# SONiC 202605 Release Notes
+
+This document captures the new features added and enhancements done on existing features/sub-features for the SONiC [202605](https://github.com/orgs/sonic-net/projects/35/) release.
+
+
+
+# Table of Contents
+
+ * [Branch and Image Location](#branch-and-image-location)
+ * [Dependency Version](#dependency-version)
+ * [Security Updates](#security-updates)
+ * [Feature List](#feature-list)
+ * [SAI APIs](#sai-apis)
+ * [Contributors](#contributors)
+
+
+# Branch and Image Location
+
+Branch : https://github.com/Azure/sonic-buildimage/tree/202605 <br>
+Image  : https://sonic-build.azurewebsites.net/ui/sonic/pipelines  (Example - Image for Broadcom based platforms is [here](https://sonic-build.azurewebsites.net/ui/sonic/pipelines/138/builds/51255/artifacts/98637?branchName=master&artifactName=sonic-buildimage.broadcom))
+
+# Dependency Version
+
+|Feature                    | Version  |
+| ------------------------- | --------------- |
+| Linux kernel version      | 6.12.41+deb13-sonic-amd64 |
+| SAI   version             | SAI v1.18.1    |
+| FRR                       | 10.5.4 |
+| LLDPD                     | 1.0.16-1+deb12u1 |
+| TeamD                     | 1.31-1 |
+| SNMPD                     | 5.9.4+dfsg-2+deb13u1 |
+| Python                    | 3.13.5 |
+| syncd                     | 1.0.0 |
+| swss                      | 1.0.0 |
+| radvd                     | 2.20-1+b1 |
+| isc-dhcp                  | 4.4.3-P1-2 |
+| sonic-gnmi (telemetry)    | 0.1 |
+| redis-server/redis-tools  | 8.0.2 |
+| Debian version            | Trixie (Debian version 13) |
+
+Note : The kernel version is migrated to the version that is mentioned in the first row in the above 'Dependency Version' table.
+
+
+# Security Updates
+
+1. Kernel upgraded from 6.1.123 to 6.12.41 for SONiC release.<br>
+   Change log: https://www.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.41
+
+2. Docker is with 28.2.1-debian-stretch  <br>
+   Change log: https://docs.docker.com/engine/release-notes/28/#2821
+
+
+# Feature List
+
+| Feature| Feature Description | HLD PR / PR tracking | Quality |
+| ------ | ------- | -----|-----|
+| ***Support for OC-YANG target for dial-out telemetry*** | This feature adds support for dial-out telemetry with the OC Yang target. | [558](https://github.com/sonic-net/sonic-gnmi/pull/558) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***Add Multi-ASIC warm-reboot*** | This feature fixes multi-ASIC configurations with all frontend ASICs and no interconnect, with support limited to this specific configuration. | [2153](https://github.com/sonic-net/SONiC/pull/2153) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***Add SED support for Change/Reset SED password*** | This feature describes SED password management in SONiC, including changing and resetting passwords via CLI using the platform API. | [2171](https://github.com/sonic-net/SONiC/pull/2171) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***BMC flows in SONiC*** | This feature introduces foundational BMC support in SONiC using Redfish, including client integration, BMC IP configuration, CLI commands, and asynchronous BMC log collection in show techsupport, with an OS-agnostic interface. | [2062](https://github.com/sonic-net/SONiC/pull/2062) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***Enhancement: Enable VRF binding for gNMI and Telemetry*** | This feature adds support to bind gNMI and Telemetry processes to a configured VRF. | [504](https://github.com/sonic-net/sonic-gnmi/issues/504) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***Added HLD for Dualtor Prefix based Neighbor*** | This feature introduces prefix-based neighbor optimization for DualToR, reducing SAI calls during mux state changes to minimize traffic loss. | [2176](https://github.com/sonic-net/SONiC/pull/2176) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***Event and alarm management*** | This feature enhances the event framework with persistent event history support and adds gNMI/REST OpenConfig interfaces for retrieval and subscription. | [22617](https://github.com/sonic-net/sonic-buildimage/pull/22617) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***[Dell] Z9864F initial commit*** | This feature adds support for the Dell Z9864F-TH5 platform, including platform APIs, drivers, build updates, and NPU configuration. | [26001](https://github.com/sonic-net/sonic-buildimage/pull/26001) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***Dell S3248T platform support*** | This feature adds support for the Dell S3248T platform with Broadcom ASIC, including required platform integration and SONiC image support. | [22489](https://github.com/sonic-net/sonic-buildimage/pull/22489) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***[Tracking PR] multi-ASIC extended CLI syntax to multi-ASIC*** | This feature adds documentation for namespace-aware show/config commands with usage, TOC entry, and cross-references to related CLI behavior. | [2288](https://github.com/sonic-net/SONiC/pull/2288) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***Added Fast-linkup*** | This feature introduces Fast Link-Up in SONiC, enabling faster link recovery by reusing prior EQ parameters with configurable thresholds and capability-based support. | [2170](https://github.com/sonic-net/SONiC/pull/2170) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***CMIS Vendor Specific DOM Extension HLD*** | This feature introduces a generic vendor extension framework for CMIS modules, enabling vendor-specific telemetry integration without changes to common sonic_xcvr code. | [2291](https://github.com/sonic-net/SONiC/pull/2291) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***Update fabric HLD with permanent isolate fabric links section*** | This feature updates the fabric HLD to include permanent fabric link isolation and clears previous monitoring status and decisions after fabric port link down/up events, unless the link was manually shut down via CLI. | [2085](https://github.com/sonic-net/SONiC/pull/2085) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***Add CMIS LPO Enhancement HLD*** | This feature adds an HLD for enhanced LPO EEPROM registers, including additional SI/debug settings and Xcvrd support in SONiC. | [2205](https://github.com/sonic-net/SONiC/pull/2205) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***Implement leak detection common components*** | This feature implements leak detection for the SONiC pmon design, including BMC interactions, DB schema updates, thermal data integration, and CLI enhancements. | [637](https://github.com/sonic-net/sonic-platform-common/pull/637) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***Implement leak detection improvements in thermalctld*** | This feature implements leak detection for the SONiC pmon design, including BMC and Switch-Host interaction, Rack Manager integration, DB updates, thermal data push, and CLI enhancements. | [776](https://github.com/sonic-net/sonic-platform-daemons/pull/776) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***Add PORT_PHY_ATTR flex counter support*** | This feature adds support for polling port PHY attributes using flex counters to monitor SerDes-level metrics. | [3957](https://github.com/sonic-net/sonic-swss/pull/3957) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***Flex Counter Phase 2 - Port Serdes Attributes*** | This feature adds support for polling port SerDes attributes via flex counters, including configuration handling, DB mappings, and tracking of SerDes-to-port associations. | [4223](https://github.com/sonic-net/sonic-swss/pull/4223) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***PCIe AER printk ratelimiting backport*** | This feature backports AER printk rate limiting to reduce log spam from frequent corrected error reports. | [520](https://github.com/sonic-net/sonic-linux-kernel/pull/520) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***Package Arista platform drivers into aspeed image*** | This feature adds Arista platform driver support for the aspeed image, including packaging and build integration. | [27374](https://github.com/sonic-net/sonic-buildimage/pull/27374) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***Container upgrades to Trixie*** | This feature upgrades SONiC containers to Trixie. | [2169](https://github.com/sonic-net/SONiC/issues/2169) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***Support PDB flows*** | This feature introduces monitoring support for power distribution boards (PDB) on direct-current platforms replacing PSUs. | [2219](https://github.com/sonic-net/SONiC/pull/2219) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***Unified changes done for FRR*** | This feature updates the default routing configuration mode to unified for compatibility with the latest FRR. | [22533](https://github.com/sonic-net/sonic-buildimage/pull/22533) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***Docker Routing Mode behavior changes for frrcfgd*** | This feature migrates separated routing mode to a unified FRR configuration file due to deprecation of per-daemon configs. | [27547](https://github.com/sonic-net/sonic-buildimage/pull/27547) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+| ***Upgrade FRR to version 10.5.4*** | This feature upgrades FRR to version 10.5.4, including submodule updates and patch alignment. | [25839](https://github.com/sonic-net/sonic-buildimage/pull/25839) | [Alpha](https://github.com/sonic-net/SONiC/blob/master/doc/SONiC%20feature%20quality%20definition.md) |
+
+Note : The HLD PR's have been updated in "HLD PR / PR tracking" column. The code PR's part of the features are mentioned within the HLD PRs. The code PRs not mentioned in HLD PRs are updated in "HLD PR / PR tracking" column along with HLD PRs.
+
+# SAI APIs
+
+Please find the list of API's classified along the newly added SAI features. For further details on SAI API please refer [SAI_1.18.1 Release Notes](https://github.com/opencomputeproject/SAI/blob/master/doc/SAI_1.18.1_ReleaseNotes.md)
+
+
+# Contributors
+
+SONiC community would like to thank all the contributors from various companies and the individuals who has contributed for the release.
+
+<br>