Updated Changelog (markdown)

Changelog.md

@@ -1,6 +1,28 @@
 # Ryujinx Changelog
 All updates to the Ryujinx official master build will be documented in this file
 
+## 1.0.4921 - 2020-07-13
+### Changed
+- Modified depth stencil format copy compatibility check to check for equivalent color formats.
+  - Fixes broken fog on Pokémon Sword/Shield.
+
+## 1.0.4918 - 2020-07-13
+### Fixed
+- Miscellaenous CPU instruction optimizations.
+  - Fixes issues in Monster Hunter (all versions) and Ni No Kuni (needs other instructions)
+
+## 1.0.4916 - 2020-07-13
+### Fixed
+- Resolved a JIT issue where operand assignments were not getting cleaned up.
+
+## 1.0.4914 - 2020-07-13
+### Fixed
+- Corrected a bug introduced in 1.0.4891 (PR 1359).
+
+## 1.0.4909 - 2020-07-12
+### Changed
+- Updated README.md.
+
 ## 1.0.4906 - 2020-07-11
 ### Added
 - Implemented initial support for FMV/in-game videos (NVDEC).