[xen master] Update CHANGELOG and README with dependency on json-c

[patchbot@xxxxxxx]

commit acaecf31ea1d566a20b5ee9c0f1f3cb4ee0ec9c2
Author:     Anthony PERARD <anthony.perard@xxxxxxxxxx>
AuthorDate: Mon Sep 29 14:07:56 2025 +0200
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Mon Oct 6 12:36:59 2025 +0100

    Update CHANGELOG and README with dependency on json-c
    
    Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
    Acked-by: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 CHANGELOG.md | 2 ++
 README       | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7b9518ff08..5c70bc0250 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,8 @@ The format is based on [Keep a 
Changelog](https://keepachangelog.com/en/1.0.0/)
  - Debian Trixie added to CI.  Debian Bullseye retired from CI for RISC-V due
    to the baseline change.
  - Linux based device model stubdomains are now fully supported.
+ - New dependency on library json-c, the toolstack will prefer it to `YAJL`
+   when available.
 
  - On x86:
    - Restrict the cache flushing done as a result of guest physical memory map
diff --git a/README b/README
index 6ee58f7b35..9329f30e13 100644
--- a/README
+++ b/README
@@ -53,7 +53,7 @@ provided by your OS distributor:
     * Development install of Python 2.7 or later (e.g., python-dev)
     * Development install of curses (e.g., libncurses-dev)
     * Development install of uuid (e.g. uuid-dev)
-    * Development install of yajl (e.g. libyajl-dev)
+    * Development install of json-c (e.g. libjson-c-dev) or yajl (e.g. 
libyajl-dev)
     * Development install of libaio (e.g. libaio-dev) version 0.3.107 or
       greater.
     * Development install of GLib v2.0 (e.g. libglib2.0-dev)
--
generated by git-patchbot for /home/xen/git/xen.git#master