diff --git a/bin/xbps-bin/state_cb.c b/bin/xbps-bin/state_cb.c
index 225cea86..e4738575 100644
--- a/bin/xbps-bin/state_cb.c
+++ b/bin/xbps-bin/state_cb.c
@@ -34,35 +34,60 @@ state_cb(const struct xbps_state_cb_data *xscd, void *cbdata)
 {
 	const struct xbps_handle *xhp = xbps_handle_get();
 	prop_dictionary_t pkgd;
-	const char *pkgver;
+	const char *version;
 
 	(void)cbdata;
 
 	switch (xscd->state) {
+	/* notifications */
 	case XBPS_STATE_TRANS_DOWNLOAD:
+		printf("[*] Downloading binary packages\n");
+		break;
 	case XBPS_STATE_TRANS_VERIFY:
+		printf("[*] Verifying binary package integrity\n");
+		break;
 	case XBPS_STATE_TRANS_RUN:
+		printf("[*] Running transaction tasks\n");
+		break;
 	case XBPS_STATE_TRANS_CONFIGURE:
+		printf("[*] Configuring unpacked packages\n");
+		break;
+	case XBPS_STATE_REPOSYNC:
 	case XBPS_STATE_DOWNLOAD:
 	case XBPS_STATE_VERIFY:
+	case XBPS_STATE_CONFIG_FILE:
+		if (xscd->desc != NULL)
+			printf("%s\n", xscd->desc);
+		break;
 	case XBPS_STATE_REMOVE:
+		printf("Removing `%s-%s' ...\n", xscd->pkgname, xscd->version);
+		break;
 	case XBPS_STATE_PURGE:
+		printf("Purging `%s-%s' ...\n", xscd->pkgname, xscd->version);
+		break;
 	case XBPS_STATE_CONFIGURE:
+		printf("Configuring `%s-%s' ...\n", xscd->pkgname,
+		    xscd->version);
+		break;
 	case XBPS_STATE_REGISTER:
 	case XBPS_STATE_UNREGISTER:
-	case XBPS_STATE_INSTALL:
+		/* empty */
+		break;
 	case XBPS_STATE_UNPACK:
-	case XBPS_STATE_REPOSYNC:
-	case XBPS_STATE_CONFIG_FILE:
-		printf("%s\n", xscd->desc);
+		printf("Unpacking `%s-%s' ...\n", xscd->pkgname, xscd->version);
+		break;
+	case XBPS_STATE_INSTALL:
+		printf("Installing `%s-%s' ...\n",
+		    xscd->pkgname, xscd->version);
 		break;
 	case XBPS_STATE_UPDATE:
 		pkgd = xbps_find_pkg_dict_installed(xscd->pkgname, false);
-		prop_dictionary_get_cstring_nocopy(pkgd, "pkgver", &pkgver);
+		prop_dictionary_get_cstring_nocopy(pkgd, "version", &version);
 		prop_object_release(pkgd);
-		printf("Updating `%s' to `%s-%s'...\n", pkgver,
-		    xscd->pkgname, xscd->version);
+		printf("Updating `%s' (`%s' to `%s') ...\n", xscd->pkgname,
+		    version, xscd->version);
 		break;
+	/* success */
 	case XBPS_STATE_REMOVE_FILE:
 	case XBPS_STATE_REMOVE_FILE_OBSOLETE:
 		if (xhp->flags & XBPS_FLAG_VERBOSE)
@@ -72,6 +97,23 @@ state_cb(const struct xbps_state_cb_data *xscd, void *cbdata)
 			printf("\033[1A\033[K");
 		}
 		break;
+	case XBPS_STATE_INSTALL_DONE:
+		printf("Installed `%s-%s' successfully.\n",
+		    xscd->pkgname, xscd->version);
+		break;
+	case XBPS_STATE_UPDATE_DONE:
+		printf("Updated `%s' to `%s' successfully.\n",
+		    xscd->pkgname, xscd->version);
+		break;
+	case XBPS_STATE_REMOVE_DONE:
+		printf("Removed `%s-%s' successfully.\n",
+		    xscd->pkgname, xscd->version);
+		break;
+	case XBPS_STATE_PURGE_DONE:
+		printf("Purged `%s-%s' successfully.\n",
+		     xscd->pkgname, xscd->version);
+		break;
+	/* errors */
 	case XBPS_STATE_UNPACK_FAIL:
 	case XBPS_STATE_UPDATE_FAIL:
 	case XBPS_STATE_CONFIGURE_FAIL:
diff --git a/include/xbps_api.h b/include/xbps_api.h
index 524c26fd..504c70c8 100644
--- a/include/xbps_api.h
+++ b/include/xbps_api.h
@@ -55,7 +55,7 @@
  */
 #define XBPS_PKGINDEX_VERSION	"1.3"
 
-#define XBPS_API_VERSION	"20111124-1"
+#define XBPS_API_VERSION	"20111125"
 #define XBPS_VERSION		"0.11.0"
 
 /**
@@ -168,7 +168,7 @@ void		xbps_warn_printf(const char *, ...);
  *
  * Integer representing the xbps callback returned state. Possible values:
  *
- * XBPS_STATE_UKKNOWN: unknown, state hasn't been prepared or unknown error.
+ * XBPS_STATE_UKKNOWN: state hasn't been prepared or unknown error.
  * XBPS_STATE_TRANS_DOWNLOAD: transaction is downloading binary packages.
  * XBPS_STATE_TRANS_VERIFY: transaction is verifying binary package integrity.
  * XBPS_STATE_TRANS_RUN: transaction is performing operations:
@@ -178,12 +178,16 @@ void		xbps_warn_printf(const char *, ...);
  * XBPS_STATE_DOWNLOAD: a binary package is being downloaded.
  * XBPS_STATE_VERIFY: a binary package is being verified.
  * XBPS_STATE_REMOVE: a package is being removed.
+ * XBPS_STATE_REMOVE_DONE: a package has been removed successfully.
  * XBPS_STATE_REMOVE_FILE: a package file is being removed.
  * XBPS_STATE_REMOVE_OBSOLETE: an obsolete package file is being removed.
  * XBPS_STATE_PURGE: a package is being purged.
+ * XBPS_STATE_PURGE_DONE: a package has been purged successfully.
  * XBPS_STATE_REPLACE: a package is being replaced.
  * XBPS_STATE_INSTALL: a package is being installed.
+ * XBPS_STATE_INSTALL_DONE: a package has been installed successfully.
  * XBPS_STATE_UPDATE: a package is being updated.
+ * XBPS_STATE_UPDATE_DONE: a package has been updated successfully.
  * XBPS_STATE_UNPACK: a package is being unpacked.
  * XBPS_STATE_CONFIGURE: a package is being configured.
  * XBPS_STATE_CONFIG_FILE: a package configuration file is being processed.
@@ -218,12 +222,16 @@ typedef enum xbps_state {
 	XBPS_STATE_DOWNLOAD,
 	XBPS_STATE_VERIFY,
 	XBPS_STATE_REMOVE,
+	XBPS_STATE_REMOVE_DONE,
 	XBPS_STATE_REMOVE_FILE,
 	XBPS_STATE_REMOVE_FILE_OBSOLETE,
 	XBPS_STATE_PURGE,
+	XBPS_STATE_PURGE_DONE,
 	XBPS_STATE_REPLACE,
 	XBPS_STATE_INSTALL,
+	XBPS_STATE_INSTALL_DONE,
 	XBPS_STATE_UPDATE,
+	XBPS_STATE_UPDATE_DONE,
 	XBPS_STATE_UNPACK,
 	XBPS_STATE_CONFIGURE,
 	XBPS_STATE_CONFIG_FILE,
diff --git a/lib/package_configure.c b/lib/package_configure.c
index e915fa3d..14b10d61 100644
--- a/lib/package_configure.c
+++ b/lib/package_configure.c
@@ -119,8 +119,7 @@ xbps_configure_pkg(const char *pkgname,
 	if (pkgver == NULL)
 		return ENOMEM;
 
-	xbps_set_cb_state(XBPS_STATE_CONFIGURE, 0, pkgname, lver,
-	    "Configuring package `%s' ...", pkgver);
+	xbps_set_cb_state(XBPS_STATE_CONFIGURE, 0, pkgname, lver, NULL);
 
 	buf = xbps_xasprintf(".%s/metadata/%s/INSTALL",
 	    XBPS_META_PATH, pkgname);
diff --git a/lib/package_purge.c b/lib/package_purge.c
index 7c67b170..a0f04af9 100644
--- a/lib/package_purge.c
+++ b/lib/package_purge.c
@@ -146,8 +146,7 @@ xbps_purge_pkg(const char *pkgname, bool check_state)
 	}
 	prop_dictionary_get_cstring_nocopy(pkgd, "pkgver", &pkgver);
 	prop_dictionary_get_cstring_nocopy(pkgd, "version", &version);
-	xbps_set_cb_state(XBPS_STATE_PURGE, 0, pkgname, version,
-	    "Purging package `%s'...", pkgver);
+	xbps_set_cb_state(XBPS_STATE_PURGE, 0, pkgname, version, NULL);
 
 	if (check_state) {
 		/*
@@ -233,5 +232,7 @@ xbps_purge_pkg(const char *pkgname, bool check_state)
 	if ((rv = xbps_unregister_pkg(pkgname, version)) != 0)
 		return rv;
 
+	xbps_set_cb_state(XBPS_STATE_PURGE_DONE, 0, pkgname, version, NULL);
+
 	return rv;
 }
diff --git a/lib/package_register.c b/lib/package_register.c
index b81aa2c7..84764c9e 100644
--- a/lib/package_register.c
+++ b/lib/package_register.c
@@ -67,8 +67,7 @@ xbps_register_pkg(prop_dictionary_t pkgrd)
 	provides = prop_dictionary_get(pkgrd, "provides");
 	reqby = prop_dictionary_get(pkgrd, "requiredby");
 
-	xbps_set_cb_state(XBPS_STATE_REGISTER, 0, pkgname, version,
-	    "Registering package `%s'...", pkgver);
+	xbps_set_cb_state(XBPS_STATE_REGISTER, 0, pkgname, version, NULL);
 
 	assert(pkgname != NULL);
 	assert(version != NULL);
@@ -170,8 +169,7 @@ xbps_unregister_pkg(const char *pkgname, const char *version)
 
 	assert(pkgname != NULL);
 
-	xbps_set_cb_state(XBPS_STATE_UNREGISTER, 0, pkgname, version,
-	    "Unregistering package `%s'...", pkgname);
+	xbps_set_cb_state(XBPS_STATE_UNREGISTER, 0, pkgname, version, NULL);
 
 	xhp = xbps_handle_get();
 	plist = xbps_xasprintf("%s/%s/%s",
diff --git a/lib/package_remove.c b/lib/package_remove.c
index 57818fa3..86013b99 100644
--- a/lib/package_remove.c
+++ b/lib/package_remove.c
@@ -213,8 +213,7 @@ xbps_remove_pkg(const char *pkgname, const char *version, bool update)
 	if (pkgver == NULL)
 		return ENOMEM;
 
-	xbps_set_cb_state(XBPS_STATE_REMOVE, 0, pkgname, version,
-	    "Removing package `%s'...", pkgver);
+	xbps_set_cb_state(XBPS_STATE_REMOVE, 0, pkgname, version, NULL);
 
 	buf = xbps_xasprintf(".%s/metadata/%s/REMOVE",
 	    XBPS_META_PATH, pkgname);
@@ -342,6 +341,9 @@ xbps_remove_pkg(const char *pkgname, const char *version, bool update)
 		    rv, pkgname, version,
 		    "%s: [remove] failed to set state to config-files: %s",
 		    pkgver, strerror(rv));
+	} else {
+		xbps_set_cb_state(XBPS_STATE_REMOVE_DONE,
+		     0, pkgname, version, NULL);
 	}
 	free(pkgver);
 
diff --git a/lib/package_unpack.c b/lib/package_unpack.c
index d0785698..cbb675a0 100644
--- a/lib/package_unpack.c
+++ b/lib/package_unpack.c
@@ -553,9 +553,7 @@ xbps_unpack_binary_pkg(prop_dictionary_t pkg_repod)
 	prop_dictionary_get_cstring_nocopy(pkg_repod, "repository", &repoloc);
 	prop_dictionary_get_cstring_nocopy(pkg_repod, "filename", &fname);
 
-	xbps_set_cb_state(XBPS_STATE_UNPACK,
-	    0, pkgname, version,
-	    "Unpacking package `%s'...", pkgver);
+	xbps_set_cb_state(XBPS_STATE_UNPACK, 0, pkgname, version, NULL);
 
 	bpkg = xbps_path_from_repository_uri(pkg_repod, repoloc);
 	if (bpkg == NULL) {
diff --git a/lib/transaction_commit.c b/lib/transaction_commit.c
index 19b5d222..fce79807 100644
--- a/lib/transaction_commit.c
+++ b/lib/transaction_commit.c
@@ -167,7 +167,7 @@ xbps_transaction_commit(prop_dictionary_t transd)
 	struct xbps_handle *xhp;
 	prop_object_t obj;
 	prop_object_iterator_t iter;
-	const char *pkgname, *version, *pkgver, *filen, *tract;
+	const char *pkgname, *version, *pkgver, *tract;
 	int rv = 0;
 	bool update;
 
@@ -180,23 +180,20 @@ xbps_transaction_commit(prop_dictionary_t transd)
 	/*
 	 * Download binary packages (if they come from a remote repository).
 	 */
-	xbps_set_cb_state(XBPS_STATE_TRANS_DOWNLOAD, 0, NULL, NULL,
-	    "[*] Downloading binary packages");
+	xbps_set_cb_state(XBPS_STATE_TRANS_DOWNLOAD, 0, NULL, NULL, NULL);
 	if ((rv = download_binpkgs(xhp, iter)) != 0)
 		goto out;
 	/*
 	 * Check SHA256 hashes for binary packages in transaction.
 	 */
-	xbps_set_cb_state(XBPS_STATE_TRANS_VERIFY, 0, NULL, NULL,
-	    "[*] Verifying binary package integrity");
+	xbps_set_cb_state(XBPS_STATE_TRANS_VERIFY, 0, NULL, NULL, NULL);
 	if ((rv = check_binpkgs_hash(iter)) != 0)
 		goto out;
 	/*
 	 * Install, update, configure or remove packages as specified
 	 * in the transaction dictionary.
 	 */
-	xbps_set_cb_state(XBPS_STATE_TRANS_RUN, 0, NULL, NULL,
-	    "[*] Running transaction tasks");
+	xbps_set_cb_state(XBPS_STATE_TRANS_RUN, 0, NULL, NULL, NULL);
 
 	while ((obj = prop_object_iterator_next(iter)) != NULL) {
 		update = false;
@@ -204,7 +201,6 @@ xbps_transaction_commit(prop_dictionary_t transd)
 		prop_dictionary_get_cstring_nocopy(obj, "pkgname", &pkgname);
 		prop_dictionary_get_cstring_nocopy(obj, "version", &version);
 		prop_dictionary_get_cstring_nocopy(obj, "pkgver", &pkgver);
-		prop_dictionary_get_cstring_nocopy(obj, "filename", &filen);
 
 		if (strcmp(tract, "remove") == 0) {
 			/*
@@ -239,8 +235,8 @@ xbps_transaction_commit(prop_dictionary_t transd)
 				 * Update a package: execute pre-remove
 				 * action if found before unpacking.
 				 */
-				xbps_set_cb_state(XBPS_STATE_UPDATE,
-				    0, pkgname, version, NULL);
+				xbps_set_cb_state(XBPS_STATE_UPDATE, 0,
+				    pkgname, version, NULL);
 				rv = xbps_remove_pkg(pkgname, version, true);
 				if (rv != 0) {
 					xbps_set_cb_state(
@@ -253,8 +249,8 @@ xbps_transaction_commit(prop_dictionary_t transd)
 				}
 			} else {
 				/* Install a package */
-				xbps_set_cb_state(XBPS_STATE_INSTALL,
-				    0, pkgname, version, NULL);
+				xbps_set_cb_state(XBPS_STATE_INSTALL, 0,
+				    pkgname, version, NULL);
 			}
 			/*
 			 * Unpack binary package.
@@ -272,8 +268,7 @@ xbps_transaction_commit(prop_dictionary_t transd)
 	/*
 	 * Configure all unpacked packages.
 	 */
-	xbps_set_cb_state(XBPS_STATE_TRANS_CONFIGURE, 0, NULL, NULL,
-	    "[*] Configuring unpacked packages");
+	xbps_set_cb_state(XBPS_STATE_TRANS_CONFIGURE, 0, NULL, NULL, NULL);
 
 	while ((obj = prop_object_iterator_next(iter)) != NULL) {
 		prop_dictionary_get_cstring_nocopy(obj, "transaction", &tract);
@@ -289,6 +284,17 @@ xbps_transaction_commit(prop_dictionary_t transd)
 		rv = xbps_configure_pkg(pkgname, version, false, update);
 		if (rv != 0)
 			goto out;
+		/*
+		 * Notify client callback when a package has been
+		 * installed or updated.
+		 */
+		if (update) {
+			xbps_set_cb_state(XBPS_STATE_UPDATE_DONE, 0,
+			    pkgname, version, NULL);
+		} else {
+			xbps_set_cb_state(XBPS_STATE_INSTALL_DONE, 0,
+			    pkgname, version, NULL);
+		}
 	}
 
 out: