Added version 1.28.0 CHANGES.

CHANGES

@@ -1,4 +1,43 @@
 
+Changes with Unit 1.28.0                                         13 Sep 2022
+
+    *) Change: increased the applications' startup timeout.
+
+    *) Change: disallowed abstract Unix domain socket syntax in non-Linux
+       systems.
+
+    *) Feature: basic statistics API.
+
+    *) Feature: customizable access log format.
+
+    *) Feature: more HTTP variables support.
+
+    *) Feature: forwarded header to replace client address and protocol.
+
+    *) Feature: ability to get dynamic variables.
+
+    *) Feature: support for abstract Unix sockets.
+
+    *) Feature: support for Unix sockets in address matching.
+
+    *) Feature: the $dollar variable translates to a literal "$" during
+       variable substitution.
+
+    *) Bugfix: router process could crash if index file didn't contain an
+       extension.
+
+    *) Bugfix: force SCRIPT_NAME in Ruby to always be an empty string.
+
+    *) Bugfix: when isolated PID numbers reach the prototype process host
+       PID, the prototype crashed.
+
+    *) Bugfix: the Ruby application process could crash on SIGTERM.
+
+    *) Bugfix: the Ruby application process could crash on SIGINT.
+
+    *) Bugfix: mutex leak in the C API.
+
+
 Changes with Unit 1.27.0                                         02 Jun 2022
 
     *) Feature: ability to specify a custom index file name when serving