Update ChangeLog for v26.06.0 release

Add relevant fixes and features that was missed in PRs.

[skip ci]

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

doc/ChangeLog.md

@@ -27,6 +27,13 @@ All notable changes to the project are documented in this file.
   iCalendar recurrence grouping pruned to cron-expressible rules.  Schedules
   are reusable time-specs; features (`scheduled-reboot`,
   `software/check-update`) trigger off them via a schedule reference
+- Configuring multiple BSS (more than one SSID) on a single Wi-Fi radio now
+  requires an explicitly configured MAC address per BSS
+- New operational `advertised-pmd-types` leaf-list on each Ethernet interface,
+  exposing the link modes currently advertised, to compare against the
+  `supported-pmd-types` introduced in v26.05.0
+- Release assets no longer ship separate `.sha256` checksum files; the
+  download page now publishes a SHA-256 checksum for each asset directly
 
 ### Fixes
 
@@ -39,6 +46,14 @@ All notable changes to the project are documented in this file.
   default `admin` user no permission to read or write the file from shell
 - Fix admin url shown for HTTP/HTTPS links in <https://network.local> browser,
   used pre-conflict resolution hostname.local, instead of hostname-2.local
+- Fix unreadable per-port temperature sensor names in `show hardware` on
+  Marvell based switches: each sensor is now named after the front-panel port
+  it serves (e.g. `e1`, `e2`) instead of a raw device-tree path.  `show
+  system` also reports a representative SoC temperature on CN913x platforms
+- Fix missing `contact` and `location` settings in operational status; the
+  values were configurable but never returned on RESTCONF/NETCONF reads
+- Fix spurious YANG validation warnings, for NTP and WireGuard configuration,
+  emitted on every NETCONF session and schema load
 
 [wifi]: https://www.kernelkit.org/infix/latest/wifi/