Update branch information in BRANCHES.md
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/BRANCHES.md b/BRANCHES.md
index d514418..ee91f76 100644
--- a/BRANCHES.md
+++ b/BRANCHES.md
@@ -48,8 +48,7 @@
- [master](https://github.com/ARMmbed/mbedtls/tree/master)
- [`development`](https://github.com/ARMmbed/mbedtls/)
-- [`mbedtls-2.16`](https://github.com/ARMmbed/mbedtls/tree/mbedtls-2.16)
- maintained until at least the end of 2021, see
- <https://tls.mbed.org/tech-updates/blog/announcing-lts-branch-mbedtls-2.16>
+- [`mbedtls-2.28`](https://github.com/ARMmbed/mbedtls/tree/mbedtls-2.28)
+ maintained until at least the end of 2024.
Users are urged to always use the latest version of a maintained branch.