diff --git a/lib/controller/checks.py b/lib/controller/checks.py
index f96a63f30..e8d8b0f52 100644
--- a/lib/controller/checks.py
+++ b/lib/controller/checks.py
@@ -1232,7 +1232,7 @@ def checkStability():
             logger.error(errMsg)
 
     else:
-        warnMsg = "target URL content is not stable. sqlmap will base the page "
+        warnMsg = "target URL content is not stable (i.e. content differs). sqlmap will base the page "
         warnMsg += "comparison on a sequence matcher. If no dynamic nor "
         warnMsg += "injectable parameters are detected, or in case of "
         warnMsg += "junk results, refer to user's manual paragraph "
@@ -1317,9 +1317,8 @@ def checkRegexp():
     rawResponse = "%s%s" % (listToStrValue(headers.headers if headers else ""), page)
 
     if not re.search(conf.regexp, rawResponse, re.I | re.M):
-        warnMsg = "you provided '%s' as the regular expression to " % conf.regexp
-        warnMsg += "match, but such a regular expression does not have any "
-        warnMsg += "match within the target URL raw response, sqlmap "
+        warnMsg = "you provided '%s' as the regular expression " % conf.regexp
+        warnMsg += "which does not have any match within the target URL raw response. sqlmap "
         warnMsg += "will carry on anyway"
         logger.warn(warnMsg)
 
diff --git a/lib/core/settings.py b/lib/core/settings.py
index 656274b85..3cd18dd1d 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -19,7 +19,7 @@ from lib.core.enums import DBMS_DIRECTORY_NAME
 from lib.core.enums import OS
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.2.9.27"
+VERSION = "1.2.9.28"
 TYPE = "dev" if VERSION.count('.') > 2 and VERSION.split('.')[-1] != '0' else "stable"
 TYPE_COLORS = {"dev": 33, "stable": 90, "pip": 34}
 VERSION_STRING = "sqlmap/%s#%s" % ('.'.join(VERSION.split('.')[:-1]) if VERSION.count('.') > 2 and VERSION.split('.')[-1] == '0' else VERSION, TYPE)
diff --git a/txt/checksum.md5 b/txt/checksum.md5
index 497139b45..09d93d890 100644
--- a/txt/checksum.md5
+++ b/txt/checksum.md5
@@ -24,7 +24,7 @@ b3e60ea4e18a65c48515d04aab28ff68  extra/sqlharvest/sqlharvest.py
 1e5532ede194ac9c083891c2f02bca93  extra/wafdetectify/__init__.py
 c1bccc94522d3425a372dcd57f78418e  extra/wafdetectify/wafdetectify.py
 3459c562a6abb9b4bdcc36925f751f3e  lib/controller/action.py
-c799e4aa5cf1ad50fab0c970885c61d9  lib/controller/checks.py
+ba0f924d43ff1e41f070afb003ed0aaa  lib/controller/checks.py
 c414cecdb0472c92cf50ed5b01e4438c  lib/controller/controller.py
 c7443613a0a2505b1faec931cee2a6ef  lib/controller/handler.py
 1e5532ede194ac9c083891c2f02bca93  lib/controller/__init__.py
@@ -50,7 +50,7 @@ c8c386d644d57c659d74542f5f57f632  lib/core/patch.py
 0c3eef46bdbf87e29a3f95f90240d192  lib/core/replication.py
 a7db43859b61569b601b97f187dd31c5  lib/core/revision.py
 fcb74fcc9577523524659ec49e2e964b  lib/core/session.py
-423c57c6503bbbaa42fa832833381246  lib/core/settings.py
+29691989c16b3240427c4159a2db6129  lib/core/settings.py
 dd68a9d02fccb4fa1428b20e15b0db5d  lib/core/shell.py
 a7edc9250d13af36ac0108f259859c19  lib/core/subprocessng.py
 248bd121e0565318e1efaff54aa427bc  lib/core/target.py