diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..bb4070e
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2017 Bochun Bai
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/build_libcurl_dist.sh b/build_libcurl_dist.sh
index 3c361a3..d16c20b 100755
--- a/build_libcurl_dist.sh
+++ b/build_libcurl_dist.sh
@@ -6,15 +6,9 @@ DIST_DIR=${DIST_DIR:-$DFT_DIST_DIR}
 
 function check_curl_ver() {
 echo "#include \"include/curl/curlver.h\"
-#if LIBCURL_VERSION_MAJOR < 7 || LIBCURL_VERSION_MINOR < 40
+#if LIBCURL_VERSION_MAJOR < 7 || LIBCURL_VERSION_MINOR < 55
 #error Required curl 7.40.0+; See http://curl.haxx.se/docs/adv_20150108A.html
-#endif"|gcc -c -o /dev/null -xc -||exit 9
-
-echo "#include \"include/curl/curlver.h\"
-#if LIBCURL_VERSION_MAJOR == 7 &&  LIBCURL_VERSION_MINOR <= 52 && LIBCURL_VERSION_PATCH <= 1
-#warning curl 7.52.1 have an issue build with darwinssl; See patch here: https://github.com/curl/curl/commit/8db3afe16c0916ea5acf6aed6e7cf02f06cc8677
-#warning For 7.52.1 is the latest release version, the patch commited just one day later than release cut. I can't automatically apply the patch for you.
-#warning Please patch it with: patch -p1 < darwinssl-fix-iOS-build.patch
+#error Supported minimal version is 7.55.0 for header file changes, see Issue #12 (https://github.com/sinofool/build-libcurl-ios/issues/12)
 #endif"|gcc -c -o /dev/null -xc -||exit 9
 }
 
@@ -58,12 +52,7 @@ ${DEVROOT}/usr/bin/lipo \
 	-arch arm64 ${TMP_DIR}/arm64/lib/libcurl.a \
 	-output ${TMP_DIR}/lib/libcurl.a -create
 
-#	-arch armv7 ${TMP_DIR}/armv7/lib/libcurl.a \
-#	-arch i386 ${TMP_DIR}/i386/lib/libcurl.a \
-
-cp -r ${TMP_DIR}/armv7s/include ${TMP_DIR}/
-curl -O https://raw.githubusercontent.com/sinofool/build-libcurl-ios/master/patch-include.patch
-patch ${TMP_DIR}/include/curl/curlbuild.h < patch-include.patch
+cp -r ${TMP_DIR}/arm64/include ${TMP_DIR}/
 
 mkdir -p ${DIST_DIR}
 cp -r ${TMP_DIR}/include ${TMP_DIR}/lib ${DIST_DIR}
diff --git a/darwinssl-fix-iOS-build.patch b/darwinssl-fix-iOS-build.patch
deleted file mode 100644
index fa0aac9..0000000
--- a/darwinssl-fix-iOS-build.patch
+++ /dev/null
@@ -1,30 +0,0 @@
-From 8db3afe16c0916ea5acf6aed6e7cf02f06cc8677 Mon Sep 17 00:00:00 2001
-From: Chris Araman <chris-araman@users.noreply.github.com>
-Date: Thu, 22 Dec 2016 18:27:17 -0800
-Subject: [PATCH] darwinssl: fix iOS build
-
-Reviewed-by: Nick Zitzmann
-Fixes #1172
----
- lib/vtls/darwinssl.c | 4 ++++
- 1 file changed, 4 insertions(+)
-
-diff --git a/lib/vtls/darwinssl.c b/lib/vtls/darwinssl.c
-index a43e391..2146b56 100644
---- a/lib/vtls/darwinssl.c
-+++ b/lib/vtls/darwinssl.c
-@@ -936,7 +936,11 @@ static OSStatus CopyIdentityWithLabel(char *label,
-           (SecIdentityRef) CFArrayGetValueAtIndex(keys_list, i);
-         err = SecIdentityCopyCertificate(*out_cert_and_key, &cert);
-         if(err == noErr) {
-+#if CURL_BUILD_IOS
-+          common_name = SecCertificateCopySubjectSummary(cert);
-+#else // CURL_BUILD_MAC_10_7
-           SecCertificateCopyCommonName(cert, &common_name);
-+#endif
-           if(CFStringCompare(common_name, label_cf, 0) == kCFCompareEqualTo) {
-             CFRelease(cert);
-             CFRelease(common_name);
--- 
-2.10.1 (Apple Git-78)
-
diff --git a/patch-include.patch b/patch-include.patch
deleted file mode 100644
index dd8c8e1..0000000
--- a/patch-include.patch
+++ /dev/null
@@ -1,55 +0,0 @@
-diff armv7s/include/curl/curlbuild.h include/curl/curlbuild.h
-135a136,138
-> #ifdef __LP64__
-> /* #undef CURL_PULL_STDINT_H */
-> #else
-136a140
-> #endif
-142a147,149
-> #ifdef __LP64__
-> /* #undef CURL_PULL_INTTYPES_H */
-> #else
-143a151
-> #endif
-162a171,173
-> #ifdef __LP64__
-> #define CURL_SIZEOF_LONG 8
-> #else
-163a175
-> #endif
-174a187,189
-> #ifdef __LP64__
-> #define CURL_TYPEOF_CURL_OFF_T long
-> #else
-175a191
-> #endif
-180a197,199
-> #ifdef __LP64__
-> #define CURL_FORMAT_CURL_OFF_T "ld"
-> #else
-181a201
-> #endif
-183a204,206
-> #ifdef __LP64__
-> #define CURL_FORMAT_CURL_OFF_TU "lu"
-> #else
-184a208
-> #endif
-186a211,213
-> #ifdef __LP64__
-> #define CURL_FORMAT_OFF_T "%ld"
-> #else
-187a215
-> #endif
-192a221,223
-> #ifdef __LP64__
-> #define CURL_SUFFIX_CURL_OFF_T L
-> #else
-193a225
-> #endif
-195a228,230
-> #ifdef __LP64__
-> #define CURL_SUFFIX_CURL_OFF_TU UL
-> #else
-196a232
-> #endif