Add 8-2018-q4-major

Author: fpistm

README.md

@@ -12,7 +12,7 @@ Official [GNU Arm Embedded Toolchain](https://developer.arm.com/tools-and-softwa
 ## Changes
 
 Compared to the original ARM release, there are no changes. The **same architecture options** are supported and **the same 
-combinations of libraries** (derived from newlib) are provided.
+combinations of libraries** (derived from newlib) are provided. Some patch could be applied to fix know bugs.
 
 
 ## Releases
@@ -21,6 +21,13 @@ A release is done when an update of the **GNU Arm Embedded Toolchain** is requir
 It generally use the latest official [GNU Arm Embedded Toolchain](https://developer.arm.com/tools-and-software/open-source-software/gnu-toolchain/gnu-rm) 
 releases, maintained by ARM.
 
+### 8-2018-q4-major
+This release is equivalent to **8-2018-q4-major** from December 20, 2018,
+and is based on the `gcc-arm-none-eabi-8-2018-q4-major-src.tar.bz2` source invariant except following patches were applied in:
+ * gcc to fix the Windows LTO with -g [88422](https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88422)
+ * binutils to fix the 32-bit objcopy [24065](https://sourceware.org/bugzilla/show_bug.cgi?id=24065)
+ * gcc to fix Windows paths with spaces and LTO [89249](https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89249)
+
 ### 7-2018-q2-update
 
 This release is equivalent to **7-2018-q2-update** from June 27, 2018,