diff --git a/NEWS b/NEWS
index 72a63b91..9c87be66 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,9 @@
-xbps-0.12.1 (2012-02-14):
+xbps-0.13.0 (???):
+
+ * libxbps: skip checking for obsolete files if a package in a transaction
+   replaces another one that is going to be updated. In such cases that means
+   new package now owns some files previously owned by the package to be
+   updated, therefore the updated package must not check for obsolete files.
 
  * xbps-repo(8): the `show', `show-deps' and `show-files' targets now accept
    package patterns, i.e "xbps-repo show 'foo>=2.0'". If only a `pkgname`
diff --git a/include/xbps_api.h b/include/xbps_api.h
index c0578e4c..680cd61f 100644
--- a/include/xbps_api.h
+++ b/include/xbps_api.h
@@ -56,8 +56,8 @@
  */
 #define XBPS_PKGINDEX_VERSION	"1.4"
 
-#define XBPS_API_VERSION	"20120214-1"
-#define XBPS_VERSION		"0.12"
+#define XBPS_API_VERSION	"20120220"
+#define XBPS_VERSION		"0.13"
 
 /**
  * @def XBPS_RELVER
diff --git a/lib/package_unpack.c b/lib/package_unpack.c
index 9062f4f1..f81255f8 100644
--- a/lib/package_unpack.c
+++ b/lib/package_unpack.c
@@ -164,13 +164,14 @@ unpack_archive(prop_dictionary_t pkg_repod, struct archive *ar)
 	const char *entry_pname, *transact, *pkgname, *version, *pkgver, *fname;
 	char *buf = NULL, *pkgfilesd = NULL;
 	int rv, flags;
-	bool preserve, update, conf_file, file_exists;
+	bool preserve, update, conf_file, file_exists, skip_obsoletes;
 
 	assert(prop_object_type(pkg_repod) == PROP_TYPE_DICTIONARY);
 	assert(ar != NULL);
 
-	preserve = update = conf_file = file_exists = false;
+	preserve = update = conf_file = file_exists = skip_obsoletes = false;
 	prop_dictionary_get_bool(pkg_repod, "preserve", &preserve);
+	prop_dictionary_get_bool(pkg_repod, "skip-obsoletes", &skip_obsoletes);
 	prop_dictionary_get_cstring_nocopy(pkg_repod,
 	    "transaction", &transact);
 	prop_dictionary_get_cstring_nocopy(pkg_repod, "pkgname", &pkgname);
@@ -474,8 +475,10 @@ unpack_archive(prop_dictionary_t pkg_repod, struct archive *ar)
 		goto out;
 	}
 	/*
-	 * On pkgs that set the preserve keyword or while installing
-	 * new packages, do not check for obsolete files.
+	 * Skip checking for obsolete files on:
+	 *  - New package installation.
+	 *  - Package with "preserve" keyword.
+	 *  - Package with "skip-obsoletes" keyword.
 	 */
 	pkgfilesd = xbps_xasprintf("%s/metadata/%s/%s",
 	    XBPS_META_PATH, pkgname, XBPS_PKGFILES);
@@ -483,7 +486,7 @@ unpack_archive(prop_dictionary_t pkg_repod, struct archive *ar)
 		rv = ENOMEM;
 		goto out;
 	}
-	if (preserve || !update)
+	if (skip_obsoletes || preserve || !update)
 		goto out1;
 	/*
 	 * Check for obsolete files.
diff --git a/lib/transaction_package_replace.c b/lib/transaction_package_replace.c
index 4f8560aa..f5a19730 100644
--- a/lib/transaction_package_replace.c
+++ b/lib/transaction_package_replace.c
@@ -118,6 +118,8 @@ xbps_transaction_package_replace(prop_dictionary_t transd)
 				}
 				prop_dictionary_set_bool(reppkgd,
 				    "automatic-install", instd_auto);
+				prop_dictionary_set_bool(reppkgd,
+				    "skip-obsoletes", true);
 				xbps_array_replace_dict_by_name(transd_unsorted,
 				   reppkgd, curpkgname);
 			}