[PATCH v2 09/10] doc: add release notes for new extensible BPF API

[Marat Khalili <marat.khalili@huawei.com>]

Document the following new eBPF features introduced in this release:
* Extensible BPF loading API (rte_bpf_load_ex, rte_bpf_prm_ex).
* Loading and executing eBPF programs with up to 5 arguments.
* Installing already loaded eBPF programs as port callbacks.

Signed-off-by: Marat Khalili <marat.khalili@huawei.com>
---
 doc/guides/rel_notes/release_26_07.rst | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/doc/guides/rel_notes/release_26_07.rst b/doc/guides/rel_notes/release_26_07.rst
index f012d47a4b..18810ab81d 100644
--- a/doc/guides/rel_notes/release_26_07.rst
+++ b/doc/guides/rel_notes/release_26_07.rst
@@ -63,6 +63,26 @@ New Features
     ``rte_eal_init`` and the application is responsible for probing each device,
   * ``--auto-probing`` enables the initial bus probing, which is the current default behavior.
 
+* **Added extensible BPF loading API.**
+
+  Added an extensible BPF loading API comprising the function
+  ``rte_bpf_load_ex`` and struct ``rte_bpf_prm_ex``. This enables new features
+  such as loading classic BPF (cBPF), loading ELF images directly from memory
+  buffers, and executing multi-argument programs, while avoiding future ABI
+  breakages.
+
+* **Added support for executing BPF programs with multiple arguments.**
+
+  Added support for loading and executing BPF programs with up to 5 arguments.
+  This introduces new API functions ``rte_bpf_exec_ex``,
+  ``rte_bpf_exec_burst_ex``, and ``rte_bpf_get_jit_ex``.
+
+* **Added BPF port callback installation API.**
+
+  Added new API functions ``rte_bpf_eth_rx_install`` and
+  ``rte_bpf_eth_tx_install`` for installing already loaded BPF programs as
+  port callbacks (as opposed to loading them directly from ELF files).
+
 
 Removed Items
 -------------
-- 
2.43.0