Update CHANGELOG.md

CHANGELOG.md

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 # Gin ChangeLog
 
+## Gin v1.7.5
+
+### BUGFIXES
+
+* Fixed X-Forwarded-For unsafe handling of CVE-2020-28483 [#2844](https://github.com/gin-gonic/gin/pull/2844), closed issue [#2862](https://github.com/gin-gonic/gin/issues/2862).
+* Tree: updated the code logic for `latestNode` [#2897](https://github.com/gin-gonic/gin/pull/2897), closed issue [#2894](https://github.com/gin-gonic/gin/issues/2894) [#2878](https://github.com/gin-gonic/gin/issues/2878).
+* Tree: fixed the misplacement of adding slashes [#2847](https://github.com/gin-gonic/gin/pull/2847), closed issue [#2843](https://github.com/gin-gonic/gin/issues/2843).
+* Tree: fixed tsr with mixed static and wildcard paths [#2924](https://github.com/gin-gonic/gin/pull/2924), closed issue [#2918](https://github.com/gin-gonic/gin/issues/2918).
+
+### ENHANCEMENTS
+
+* TrustedProxies: make it backward-compatible [#2887](https://github.com/gin-gonic/gin/pull/2887), closed issue [#2819](https://github.com/gin-gonic/gin/issues/2819).
+* TrustedPlatform: provide custom options for another CDN services [#2906](https://github.com/gin-gonic/gin/pull/2906).
+
+### DOCS
+
+* NoMethod: added usage annotation ([#2832](https://github.com/gin-gonic/gin/pull/2832#issuecomment-929954463)).
+
+## Gin v1.7.4
+
+### BUGFIXES
+
+* bump new release to fix checksum mismatch
+
 ## Gin v1.7.3
 
 ### BUGFIXES