Prepare CHANGES and config.h for release.

CHANGES

@@ -1,3 +1,21 @@
+Changes to proxytunnel 1.12.1 -- Tue Feb  6 17:36:38 CET 2024
+
+[ Sven Geuer, https://github.com/68420948 ]
+- -a/--standalone option:
+  - Use an AF_INET socket when binding to a specified IPv4 address. This makes
+    sure IPv4 works regardless of the IPV6_V6ONLY socket option being turned on
+    or off. Thanks to https://github.com/saper for noting the shortcoming.
+  - Fix logging of IPv6 clients.
+  - Close unneeded listening socket in worker.
+- Deprecate -L/--tlsenforce and -T/--no-ssl3. SSLv3 has been disabled in likely
+  all distributions nowadays.
+- Apply OPENSSL_VERSION_NUMBER to compile code matching the libssl version in
+  use. Consequently the file Makefile.ssl11 has been removed.
+- Make sure no deprecated libssl functions are called, depending on the libssl
+  version in use.
+- Replace calls to deprecated functions bzero()/bcopy() by memset()/memcpy().
+- Update README.md to show recent --help output.
+
 Changes to proxytunnel 1.12.0 -- Sun Dec 17 19:51:57 CET 2023
 
 [ Sven Geuer, https://github.com/68420948 ]

config.h

@@ -17,9 +17,9 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  */
 
-#define VERSION "1.12.0"
-#define VERSION_YEAR "2023"
-#define VERSION_DATE "2023-12-17"
+#define VERSION "1.12.1"
+#define VERSION_YEAR "2024"
+#define VERSION_DATE "2024-02-06"
 #define PACKAGE "proxytunnel"
 #define PURPOSE "Build generic tunnels through HTTPS proxies"
 #define AUTHORS "Jos Visser (Muppet) <josv@osp.nl>, Mark Janssen (Maniac) <maniac@maniac.nl>"